Metal-free organic electrocatalysis for conversion and storage of renewable electricity

• Project/Area Number: 18H02068
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 36020:Energy-related chemistry
• Research Institution: Yamagata University
• Principal Investigator: 吉田 司 山形大学, 大学院理工学研究科, 教授 (90273127)
• Co-Investigator(Kenkyū-buntansha): Ajit Khosla 山形大学, 大学院理工学研究科, 助教 (00768484) ; 城石 英伸 東京工業高等専門学校, 物質工学科, 准教授 (30413751) ; Milano Giuseppe 山形大学, 大学院有機材料システム研究科, 教授 (30816608)
• Project Period (FY): 2018-04-01 – 2021-03-31
• Project Status: Granted (Fiscal Year 2020)
• Budget Amount: ¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000); Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2019: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000); Fiscal Year 2018: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
• Keywords: エネルギー変換 / 電極触媒 / 導電性高分子 / 電気化学分析 / 分子ダイナミクスシミュレーション / 3Dプリンティング

Outline of Annual Research Achievements

熱酸化CVD法によるポリドーパミン（PDA）の製膜を良く再現できる様になったことを受け、種々の導電性高分子の製膜と触媒機能評価を進めた。また、より制御性の高い製膜法として、電解重合法による製膜にも取組み、その機能を比較した。連携パートナーのリンツ大グループがポリグアニンに高い水素発生触媒能があることを見出したことから、他の核酸類（アデニン、チミン）を検討した。ポリアデニンの形成はIR測定等から確認されたが、アミノ基を有さないチミンは重合しなかった。しかし、ポリアデニンの触媒能はポリグアニンに著しく劣ることが分かり、水素結合反応場に関する興味深い情報が得られた。一方水素結合性アミノ基を多量有し、アニリンに類似したニュートラルレッドはCVD法、電解法とも膜が得られ、高いCO2還元触媒活性を示すことが明らかとなった。CVD法による試料が電解法のおよそ2倍の活性を示すことから、構造的乱雑さが高活性の要因であり、電解法によって高活性触媒を得ることは困難かと思われた。しかし、年度末にコロナウイルス感染拡大のために緊急帰国するまでの1.5カ月リンツ大で共同実施した実験において、非水溶液からの電解重合によるPDAがCVDによるPDA試料を大きく凌駕する触媒能を持つことが明らかとなった。ヘキサフルオロフォスファートをドーパントとし、ポテンシャルサイクルによる電解酸化重合において、電位掃引範囲を貴側に設定するほど触媒活性が向上し、最高性能貴金属触媒に匹敵する過電圧100mVで10mAcm-2を達成した。メタルフリー有機触媒であっても、世界最高レベルの触媒活性を見出し得ることに確信を得た。

Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

電解重合法によるPDAが世界最高レベルの水素発生触媒活性を持つことを研究中盤で確認出来たことは、当初の予想を大きく超える成果であり、本研究が最終的に目指す有機電極触媒の領域を開拓するという目標については、その達成を既に確信できる段階に至ったと考えている。また、DNAを模倣するポリヌクレオシドがCVD法によって合成可能であり、それらが導電性を持ち、水素結合性であることからCO2還元や水素発生の触媒となることが見出されたのも、大変興味深い成果であり、生体模倣型材料という位置づけからも学術的探究を開始したところである。さらには、導電性の高いポリアニリンが全く触媒能を持たない一方で、水素結合に寄与するアミノ基を高密度に含有するポリニュートラルレッドは高い触媒能を持つことも分かり、当初の想定通り導電性と水素結合性のバランスが重要であることが確認され、今後その微構造と触媒能の関係を調べる環境が整った。また、水酸化系に用いる遷移金属ドープ酸化亜鉛触媒では、微量のコバルト添加によって中性電解液中でも高い触媒活性が得られることが見出された一方、微粒子の塗布によって作製した膜が発生した気泡で剥離する問題に直面した。その解決策の案として、別途ガスバリア膜の開発を目的とした学内共同研究において、真空UV（VUV）光照射による有機金属プレカーサの光分解を利用した室温ゾルゲル法により、極めて緻密で平滑な金属酸化物薄膜を得ることに成功したことから、それを遷移金属ドープ酸化亜鉛触媒の製膜法として検討する見通しも得た。
一方で、MDシミュレーションによる評価はPDAの構造を良く説明するものの、CO2や水分子との反応機構を説明する段階には発展していない。また、気泡の脱離を容易にする立体規則多孔質電極を安価な材料から得ることにも成功出来ていない。

Strategy for Future Research Activity

導電性高分子触媒の研究については、2つの方向性でこれを展開する。一つは更なる高性能化を果たすと同時にその安定性を検証する課題であり、前年度に見出された複数の候補についての最適化、さらにはそのコポリマー化にも取り組むことでこれを果たす。同時にプロダクトの分析も重要であり、特にCO2還元については得られる生成物種類とそのファラデー効率を明らかにする必要がある。もう一つの方向性は、機能向上と微構造の関係解明であり、アニリンの誘導体を候補として比較検証する。実験的に得られた触媒活性の相違とシミュレーションを対比することで、どの様な水素結合サイトがCO2や水分子の反応中間体の安定化に寄与し、触媒作用を持つのかを明らかにしたい。
水電解に必須となる酸素発生触媒については、それ自体が酸化されて炭酸ガスとなってしまうため、有機触媒を用いることは困難である。安価で低毒性の無機触媒として、酸化亜鉛をベースとした触媒の開発をさらに発展させる。微量のコバルト添加に加え、他の遷移金属、さらにそれらの組合せにより、触媒活性と安定性の向上を果たす。特に安定性については化学的安定性というより、物理的安定性が壁となっており、新規に見出されたVUV光ゾルゲル法によって得られる高密着で緻密なアモルファス金属酸化物に期待している。
最終的に上記触媒を組合せ、3D印刷法によって作製したフロー電解装置を用い、12 hの電解で水素1 Lの生成に相当する0.2 A以上での高速エネルギー変換を実証する。光源を太陽、電源を太陽電池としたフィールドテストにより、クリーン電力の貯蔵可能な化学燃料への変換貯蔵のコンセプトを安価で再生可能な有機触媒によって実証し、学問基礎の構築と同時に今後のエネルギー開発に対して一石を投じることが最終目標となる。

Research Products

• [Int'l Joint Research] リンツ大学(オーストリア)
• [Int'l Joint Research] 半導体物理研究所(ウクライナ)
• [Int'l Joint Research] バーモント大学(米国)
• [Int'l Joint Research] ギーセン大学(ドイツ)
• [Int'l Joint Research] 北京大学深セン;大学院(中国)
• [Int'l Joint Research] リンツ大学(オーストリア)
• [Int'l Joint Research] ギーセン大学(ドイツ)
• [Int'l Joint Research] バーモント大学(米国)
• [Int'l Joint Research] ウクライナ国立学士院半導体物理研究所(ウクライナ)
• [Journal Article] Phonon-assisted anti-Stokes luminescence of tricarbocyanine near-infrared dye (2020)
  • Author(s): Dimitriev Oleg、Fedoryak Alexander、Slominskii Yuri、Smirnova Anna、Yoshida Tsukasa
  • Journal Title: Chemical Physics Letters Volume: 738 Pages: 136905-136905
  • DOI: 10.1016/j.cplett.2019.136905
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Vacuum Ultraviolet Photochemical Sol-Gel Processing of Zn, Sn, Zn-Sn Oxide Thin Films for Encapsulation of Organic Light Emitting Diodes (2019)
  • Author(s): Sun L.、Kurosawa Y.、Yoshida T.、Suzuri Y.
  • Journal Title: Journal of The Electrochemical Society Volume: 166
  • DOI: 10.1149/2.0301909jes
  • Peer Reviewed / Open Access
• [Journal Article] Switching of Dye Loading Mechanism in Electrochemical Self-Assembly of CuSCN/4-(N,N-dimethylamino)-4′- (N′-methyl)Stilbazolium Hybrid Thin Films (2019)
  • Author(s): Tsuda Y.、Nakamura T.、Uda K.、Okada S.、Yamakado R.、Sun L.、Suzuri Y.、Stadler P.、Dimitriev O.、Yoshida T.
  • Journal Title: Journal of The Electrochemical Society Volume: 166
  • DOI: 10.1149/2.0151909jes
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Vanadium Redox Flow Batteries Fabricated by 3D Printing and Employing Recycled Vanadium Collected from Ammonia Slag (2019)
  • Author(s): Sun He、Takahashi Hirotaka、Nishiumi Nobuyuki、Kamada Yuki、Sato Kei、Nedu Kyosuke、Matsushima Yuta、Khosla Ajit、Kawakami Masaru、Furukawa Hidemitsu、Stadler Philipp、Yoshida Tsukasa
  • Journal Title: Journal of The Electrochemical Society Volume: 166
  • DOI: 10.1149/2.0251909jes
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Influence of Crystal Facets (102) or (100) on Photoelectrochemical Kinetics of ZnO Nanocrystals in Dye-Sensitized Solar Cells (2019)
  • Author(s): Sun He、Ruess Raffael、Schlettwein Derck、Yoshida Tsukasa
  • Journal Title: Journal of The Electrochemical Society Volume: 166
  • DOI: 10.1149/2.0451909jes
  • Open Access / Int'l Joint Research
• [Journal Article] Preface -- JES Focus Issue on 4D Materials and Systems (2019)
  • Author(s): Rangachary Mukundan, Hidemitsu Furukawa, Giuseppe Milano, Hiroyuki Matsui, Tsukasa Yoshida, Sathish K. Sukumaran, Jessica Koehne, Peter Hesketh, Kafil M Razeeb, Luca Magagnin, Ajit Khosla, Johan Moulin
  • Journal Title: Journal of The Electrochemical Society Volume: 166
  • DOI: 10.1149/2.0481909jes
  • Open Access / Int'l Joint Research
• [Journal Article] Photoconductive Properties of Dibenzotetrathiafulvalene-Tetracyanoquinodimethane (DBTTF-TCNQ) Nanorods Prepared by the Reprecipitation Method (2019)
  • Author(s): Takeda Masaki、Hojo Kenta、Umemoto Kazuki、Scharber Markus Clark、Stadler Philipp、Yumusak Cigdem、Sariciftci Niyazi Serdar、White Matthew Shuette、Furis Madalina、Okada Shuji、Yoshida Tsukasa、Matsui Jun、Masuhara Akito
  • Journal Title: Journal of Nanoscience and Nanotechnology Volume: 19 Pages: 4599-4602
  • DOI: 10.1166/jnn.2019.16346
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Various Ionic Crystals from the Combination of 1,3-Bis(dicyanomethylidene)indan Anion and π-Electronic Cations (2019)
  • Author(s): Tanaka Yuka、Ichijo Keisuke、Kodama Sota、Aoyama Shun、Yoshida Tsukasa、Yamakado Ryohei、Okada Shuji
  • Journal Title: Crystal Growth & Design Volume: 19 Pages: 5811-5818
  • DOI: 10.1021/acs.cgd.9b00841
  • Peer Reviewed
• [Journal Article] Effects of alkylamine chain length on perovskite nanocrystals after washing and perovskite light-emitting diodes (2019)
  • Author(s): Tezuka Yuki、Umemoto Kazuki、Takeda Masaki、Takahashi Yoshihito、Ebe Hinako、Enomoto Junya、Rodbuntum Sasiphapa、Nohara Tomohiro、Fontecha Daniela、Asakura Satoshi、Chiba Takayuki、Furis Madalina Ioana、Yoshida Tsukasa、Uji-i Hiroshi、Masuhara Akito
  • Journal Title: Japanese Journal of Applied Physics Volume: 59 Issue: SD Pages: SDDC04-SDDC04
  • DOI: 10.7567/1347-4065/ab4ecd
  • ISSN: 0021-4922, 1347-4065
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Interfacial Engineering in Solution Processing of Silicon-Based Hybrid Multilayer for High Performance Thin Film Encapsulation (2019)
  • Author(s): Sun Lina、Uemura Kaho、Takahashi Tatsuhiro、Yoshida Tsukasa、Suzuri Yoshiyuki
  • Journal Title: ACS Applied Materials & Interfaces Volume: 11 Pages: 43425-43432
  • DOI: 10.1021/acsami.9b14994
  • Peer Reviewed / Open Access
• [Journal Article] Principles of solar energy storage (2019)
  • Author(s): Dimitriev Oleg、Yoshida Tsukasa、Sun He
  • Journal Title: Energy Storage Volume: 2
  • DOI: 10.1002/est2.96
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Concerted Photoluminescence of Electrochemically Self-Assembled CuSCN/Stilbazolium Dye Hybrid Thin Films (2019)
  • Author(s): Uda Kyota、Tsuda Yuki、Okada Shuji、Yamakado Ryohei、Sun Lina、Suzuri Yoshiyuki、White Matthew Schuette、Furis Madalina、Stadler Philipp、Dimitriev Oleg、Yoshida Tsukasa
  • Journal Title: ACS Omega Volume: 4 Pages: 4056-4062
  • DOI: 10.1021/acsomega.8b03632
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Preparation of Hierarchic Porous Films of α-MnO2 Nanoparticles by Using the Breath Figure Technique and Application for Hybrid Capacitor Electrodes (2019)
  • Author(s): Shimamura Nobuhiro、Kanda Ryuji、Matsukubo Yuma、Hirai Yutaro、Abe Hiroya、Hirai Yuji、Yoshida Tsukasa、Yabu Hiroshi、Masuhara Akito
  • Journal Title: ACS Omega Volume: 4 Pages: 3827-3831
  • DOI: 10.1021/acsomega.8b03381
  • Peer Reviewed / Open Access
• [Journal Article] Switching of Dye Loading Mechanism in Electrochemical Self-Assembly of CuSCN/DAS Hybrid Thin Films (2019)
  • Author(s): Tsuda Yuki、Nakamura Tenshou、Uda Kyota、Okada Shuji、Sun Lina、Suzuri Yoshiyuki、Stadler Philipp、Yoshida Tsukasa
  • Journal Title: ECS Transactions Volume: 88 Pages: 313-322
  • DOI: 10.1149/08801.0313ecst
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Solution processing of alternating PDMS/SiOx multilayer for encapsulation of organic light emitting diodes (2019)
  • Author(s): Sun Lina、Kurosawa Yu、Ito Hiroto、Makishima Yukihiro、Kita Hiroshi、Yoshida Tsukasa、Suzuri Yoshiyuki
  • Journal Title: Organic Electronics Volume: 64 Pages: 176-180
  • DOI: 10.1016/j.orgel.2018.10.027
  • Peer Reviewed / Open Access
• [Journal Article] Photoluminescent Property of Electrochemically Self-Assembled CuSCN/Dye Hybrid Thin Films (2018)
  • Author(s): Uda Kyota、Tsuda Yuki、Okada Shuji、Yamakado Ryohei、Sun Lina、Suzuri Yoshiyuki、White Matthew Schuette、Furis Madalina、Stadler Philipp、Dimitriev Oleg、Yoshida Tsukasa
  • Journal Title: ECS Transactions Volume: 88 Pages: 323-333
  • DOI: 10.1149/08801.0323ecst
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Electrodeposition of Zn-Terephthalate Metal-Organic Framework Thin Films (2018)
  • Author(s): Nakamura Tenshou、Ueda Shotaro、Uda Kyota、Tsuda Yuki、Hirai Yuji、Sun He、Yoshida Tsukasa
  • Journal Title: ECS Transactions Volume: 88 Pages: 343-350
  • DOI: 10.1149/08801.0343ecst
  • Peer Reviewed
• [Journal Article] Microwave-Assisted Hydrothermal Synthesis of Co-Doped ZnO Nanoparticles for Water Oxidation Electrocatalysis (2018)
  • Author(s): Nishiumi Nobuyuki、Sun He、Shiroishi Hidenobu、Matsushima Yuta、Stadler Philipp、Yoshida Tsukasa
  • Journal Title: ECS Transactions Volume: 88 Pages: 369-380
  • DOI: 10.1149/08801.0369ecst
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Vacuum Ultraviolet-Assisted Sol-Gel Processing of Zn, Sn, Zn-Sn Oxide Thin Films for OLED Encapsulation (2018)
  • Author(s): Sun Lina、Kurosawa Yu、Yoshida Tsukasa、Suzuri Yoshiyuki
  • Journal Title: ECS Transactions Volume: 88 Pages: 399-408
  • DOI: 10.1149/08801.0399ecst
  • Peer Reviewed
• [Journal Article] Novel Organic CT Salts of 1,3-Bis(dicyanomethylidene)indan Anion and Viologen Cations with Different Linear Alkyl Chain Lengths (2018)
  • Author(s): Saito Erika、Yasuhara Taichi、Tanaka Yuka、Yamakado Ryohei、Okada Shuji、Nohara Tomohiro、Masuhara Akito、Yoshida Tsukasa
  • Journal Title: ECS Transactions Volume: 88 Pages: 301-311
  • DOI: 10.1149/08801.0301ecst
  • Peer Reviewed
• [Journal Article] Electrochemical Impedance Spectroscopy Analysis on Dye-sensitized Solar Cells Employing (102) and (100) Dominant ZnO Nanocrystals (2018)
  • Author(s): Sun He、Ruess Raffael、Schlettwein Derck、Yoshida Tsukasa
  • Journal Title: ECS Transactions Volume: 88 Pages: 289-299
  • DOI: 10.1149/08801.0289ecst
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Vanadium Redox Flow Batteries Fabricated by 3D Printing and Employing Recycled Vanadium Collected from Ammonia Slag (2018)
  • Author(s): Sun He、Takahashi Hirotaka、Kamada Yuki、Sato Kei、Matsushima Yuta、Khosla Ajit、Kawakami Masaru、Furukawa Hidemitsu、Stadler Philipp、Yoshida Tsukasa
  • Journal Title: ECS Transactions Volume: 88 Pages: 269-278
  • DOI: 10.1149/08801.0269ecst
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Proton-Coupled Reversible Redox Reaction of Zinc-Terephthalate Metal-Organic Framework (2018)
  • Author(s): Hirai Yuji、Ueda Shotaro、Nishiumi Nobuyuki、Sun He、Matsushima Yuta、Masuhara Akito、Shiroishi Hidenobu、Yoshida Tsukasa
  • Journal Title: ECS Transactions Volume: 88 Pages: 259-268
  • DOI: 10.1149/08801.0259ecst
  • Peer Reviewed
• [Journal Article] Solution Processed Alternating Organic/Inorganic Multilayer for OLED Encapsulation (2018)
  • Author(s): Sun Lina、Kurosawa Yu、Yoshida Tsukasa、Suzuri Yoshiyuki
  • Journal Title: ECS Transactions Volume: 88 Pages: 121-128
  • DOI: 10.1149/08801.0121ecst
  • Peer Reviewed
• [Journal Article] Separation of mono-dispersed CH3NH3PbBr3 perovskite quantum dots via dissolution of nanocrystals (2018)
  • Author(s): Umemoto Kazuki、Takeda Masaki、Tezuka Yuki、Chiba Takayuki、White Matthew Schuette、Inose Tomoko、Yoshida Tsukasa、Asakura Satoshi、Toyouchi Shuichi、Uji-i Hiroshi、Masuhara Akito
  • Journal Title: CrystEngComm Volume: 20 Pages: 7053-7057
  • DOI: 10.1039/c8ce01239c
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Novel indoline dye tetrabutylammonium carboxylates attached witha methyl group on the cyclopentane ring for dye-sensitized solar cells (2018)
  • Author(s): M. Matsui, N. Tanaka, K. Funabiki, Y. Haishima, K. Manseki, J. Jin, Y. Inoue, S.Higashijima, Y. Kubota
  • Journal Title: Tetrahedron Volume: 74 Pages: 5867-5878
  • DOI: 10.1016/j.tet.2018.08.006
  • Peer Reviewed
• [Journal Article] Application of MIS-CELIV technique to measure hole mobility of hole-transport material for organic light-emitting diodes (2018)
  • Author(s): C. Katagiri, T. Yoshida, M. S. White, C. Yumusak, N. S. Sariciftci, and K. Nakayama
  • Journal Title: AIP Advances Volume: 8 Pages: 105001-105001
  • DOI: 10.1063/1.5045711
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Extraction of Vanadium from Ammonia Slag under Near-Atmospheric Conditions (2018)
  • Author(s): Takahashi Hirotaka、Fujiwara Wataru、Sun He、Yoshida Tsukasa、Matsushima Yuta
  • Journal Title: Metals Volume: 8 Pages: 414-414
  • DOI: 10.3390/met8060414
  • Peer Reviewed / Open Access
• [Journal Article] High Voltage Flexible ZnO Solar Cells Employing Bulky Organic Dye and [Co(bpy)3]2+/3+Redox Electrolyte (2018)
  • Author(s): Sun He、Kimura Tsubasa、Chiba Tatsuhiro、Mori Shogo、Khosla Ajit、Yoshida Tsukasa
  • Journal Title: Journal of The Electrochemical Society Volume: 165
  • DOI: 10.1149/2.0251808jes
  • Peer Reviewed / Open Access
• [Presentation] Synthesis of poly-neutral red and its electrocatalytic property towards CO2 reduction reaction (2020)
  • Author(s): Xin Huang, Yuya Harada, Nobuyuki Nishiumi, Halime Coskun, Aziz Aljabour, Philipp Stadler, Tsukasa Yoshida
  • Organizer: 電気化学会第87回大会
• [Presentation] 金属有機構造体薄膜の電解析出を利用したコバルトドープ酸化亜鉛薄膜の作製 (2020)
  • Author(s): 中村 天彰, 工藤 華, 津田 勇希, 吉田 司
  • Organizer: 電気化学会第87回大会
• [Presentation] カルボキシルアンカー導入ビオロゲンの多孔質酸化亜鉛への吸着と1,3-ビス(ジシアノメチリデン)インダンとのCTペア形成 (2020)
  • Author(s): 山口 寛登, 齋藤 恵里佳, 宇野 耕也, 山門 陵平, 岡田 修司, 吉田 司
  • Organizer: 電気化学会第87回大会
• [Presentation] チオシアン酸銅（I）／スチルバゾリウム色素ハイブリッド薄膜の電気化学的自己組織化機構 (2020)
  • Author(s): 鈴木 透，津田 勇希，中村 天彰，宇田 恭太，山門 陵平，岡田 修司，吉田 司
  • Organizer: 電気化学会第87回大会
• [Presentation] 再生可能エネルギー100％社会を目指して―有機太陽電池、レドックス電池、有機電極触媒 (2020)
  • Author(s): 吉田 司
  • Organizer: 第32回 電気化学会東北支部東北若手の会
  • Invited
• [Presentation] 再生可能エネルギーを基幹とするための機能材料とシステム (2020)
  • Author(s): 吉田 司
  • Organizer: 第19回中国四国地区高分子材料研究会 「自己組織化材料に基づく、機能性ナノマテリアルの創成」
  • Invited
• [Presentation] Morphology and Size Control of Zinc-Terephthalate Metal Organic Frameworks and Their Influence to Redox Properties. (2019)
  • Author(s): Satoshi Chubachi, Tensho Nakamura, Shotaro Ueda, Yuji Hirai, Tsukasa Yoshida
  • Organizer: 2019 年度化学系学協会東北大会
• [Presentation] Synthesis of carboxylated viologen cation and formation of CT salts with 1,3-Bis(dicyanomethylidene)indan anion (2019)
  • Author(s): Hiroto Yamaguchi, Erika saito, Koya Uno, Ryohei Yamakado, Shuji Okada, Tsukasa Yoshida
  • Organizer: 2019 年度化学系学協会東北大会
• [Presentation] Dye Loading Mechanism in Electrochemical Self-Assembly of CuSCN/Organic Dye Hybrid Thin Films (2019)
  • Author(s): Toru Suzuki, Tensho Nakamura, Kyota Uda, Yuki Tsuda, Ryohei Yamakado, Shuji Okada, Tsukasa Yoshida
  • Organizer: 2019 年度化学系学協会東北大会
• [Presentation] Vanadium Redox Flow Batteries Fabricated by 3D Printing and Employing Recycled Vanadium Collected from Ammonia Slag (2019)
  • Author(s): K. Onodera, N. Nishiumi, H. Sun, H. Takahashi, K. Nezu, Y. Kamada, K. Sato, Y. Matsushima, A. Khosla, M. Kawakami, M. Sago, Y. Suzuki, H. Hurukawa, P. Stadler, and T. Yoshida
  • Organizer: 2019 年度化学系学協会東北大会
• [Presentation] Nドープカーボン基板によるPDAのCO2RR活性向上の研究 (2019)
  • Author(s): 原田 祐弥, 西海 信之, Philipp Stadler, 城石 英伸, 吉田 司
  • Organizer: 第32回 電気化学会東北支部東北若手の会
• [Presentation] CuSCN/スチルバゾリウム色素ハイブリッド薄膜の電気化学的自己組織化 (2019)
  • Author(s): 津田 勇希, 鈴木 透, 中村 天彰, 宇田 恭太, 岡田 修司, 山門 陵平, Philipp Stadler, Oleg Dimitriev, 吉田司
  • Organizer: 第32回 電気化学会東北支部東北若手の会
  • Invited
• [Presentation] インダニルアニオン/ビオロゲンカチオン有機塩のCT特性 (2019)
  • Author(s): 齋藤 恵里佳, 安原 大智, 山門 凌平, 岡田 修司, 藤原 渉, 片桐 洋史, 松井 淳, 増原 陽人, Matthew White, Randall Headrick, 吉田 司
  • Organizer: 第32回 電気化学会東北支部東北若手の会
• [Presentation] Electrochemical Evaluation of Zinc-based MOFs for Redox Batteries (2019)
  • Author(s): Yuji Hirai, Shotaro Ueda, Nobuyuki Nishiumi, He Sun, Yuta Matsushima, Hidenobu Shiroishi, Akito Masuhara and Tsukasa Yoshida
  • Organizer: The First International Conference of Polymeric and Organic Materials Yonezawa (IPOMY)
  • Int'l Joint Research
• [Presentation] Microwaved synthesis and electorochemical evaluation of zinc based MOFs for anode material of membrane free redox battery (2019)
  • Author(s): Yuji Hirai, Tsukasa Yoshida
  • Organizer: The 2019 3rd International Workshop on Renewable Energy and Development (IWRED 2019)
  • Int'l Joint Research
• [Presentation] Electrodeposition of Zn-Terephthalate Metal-Organic Framework Thin Films for Redox Batteries. (2019)
  • Author(s): Tenshou Nakamura, Shotaro Ueda, Kyota Uda, Yuki Tsuda, Yuji Hirai, Tsukasa Yoshida
  • Organizer: European Materials Research Society Spring Meeting 2019
  • Int'l Joint Research
• [Presentation] Concerted Photoluminescence of Electrochemically Self-Assembled CuSCN / Stilbazolium Dye Hybrid Thin Films (2019)
  • Author(s): Kyota Uda, Yuki Tsuda, Shuji Okada, Ryohei Yamakado, Lina Sun, Yoshiyuki Suzuri, Matthew Schuette White, Madalina Furis, Philipp Stadler, Oleg Dimitriev, Tsukasa Yoshida
  • Organizer: European Materials Research Society Spring Meeting 2019
  • Int'l Joint Research
• [Presentation] Switching of Dye Loading Mechanism in Electrochemical Self-Assembly of CuSCN/4-(N,N-dimethylamino)-4’-(N’-methyl)Stilbazolium Hybrid Thin Films (2019)
  • Author(s): Yuki Tsuda, Tenshou Nakamura, Kyota. Uda, Shuji Okada, Ryohei Yamakado, Lina Sun, Yoshiyuki Suzuri, Philipp Stadler, Oleg Dimitriev, Tsukasa Yoshida
  • Organizer: 10th International Workshop on CIGS Solar Cell Technology
  • Int'l Joint Research
• [Presentation] Microwave-Assisted Hydrothermal Synthesis of Zn-Terephthalic Acid MOF for Redox Battery (2019)
  • Author(s): Shotaro Ueda, Yuji Hirai, He Sun, Yuta Matsushima, Akito Masuhara, Hidenobu Shiroishi, Tsukasa Yoshida
  • Organizer: European Materials Research Society Spring Meeting 2019
  • Int'l Joint Research
• [Presentation] Novel Organic CT Salts of 1,3-Bis(dicyanomethylidene)indan Anion and Viologen Cations with Different Linear Alkyl Chain Lengths (2019)
  • Author(s): Erika Saito, Taichi Yasuhara, Yuka Tanaka, Ryohei Yamakado, Shuji Okada, Tomohiro Nohara, Akito Masuhara and Tsukasa Yoshida
  • Organizer: European Materials Research Society Spring Meeting 2019
  • Int'l Joint Research
• [Presentation] Microwave-assisted hydrothermal synthesis of transition metal doped ZnO nanoparticles and their electrocatalytic activity for water oxidation (2019)
  • Author(s): Nobuyuki Nishiumi, He Sun, Hidenobu Shiroishi, Yuta Matsushima, Philipp Stadler, Tsukasa Yoshida
  • Organizer: 4th ECS yamagata University Students Chapter Symposium
  • Int'l Joint Research
• [Presentation] Electrochemical CO2 Reduction Catalytic Activity of Polydopamine on N-doped Carbon Substrates (2019)
  • Author(s): Yuya Harada, Nobuyuki Nishiumi, Philipp Stadler, Hidenobu Shiroishi, Tsukasa Yoshida
  • Organizer: 4th ECS yamagata University Students Chapter Symposium
  • Int'l Joint Research
• [Presentation] Synthesis of the Novel CT Co-crystals and Properties Evaluation (2019)
  • Author(s): Erika Saito, Taichi Yasuhara, Shuji Okada, Ryohei Yamakado, Jun Matsui, Hiroshi Katagiri, Wataru Fujiwara, Akito Masuhara, Matthew White, Randall Headrick, Tsukasa Yoshida
  • Organizer: 4th ECS yamagata University Students Chapter Symposium
  • Int'l Joint Research
• [Presentation] Microwave-assisted hydrothermal synthesis of transition metal doped ZnO nanoparticles and their electrocatalytic activity for water oxidation (2019)
  • Author(s): Nobuyuki Nishiumi, He Sun, Hidenobu Shiroishi, Yuta Matsushima, Philipp Stadler, Tsukasa Yoshida
  • Organizer: Agenda Symposium “Sustainable Catalysis”
  • Int'l Joint Research
• [Presentation] Electrochemical CO2 Reduction Catalytic Activity Comparison of Polydopamine on N-doped Carbon Substrates (2019)
  • Author(s): Yuya Harada, Nobuyuki Nishiumi, Philipp Stadler, Hidenobu Shiroishi, Tsukasa Yoshida
  • Organizer: Agenda Symposium “Sustainable Catalysis”
  • Int'l Joint Research
• [Presentation] Mechanistic studies for electrochemical self-assembly of CuSCN/Stilbazolium dye hybrid thin films (2019)
  • Author(s): Yuki Tsuda, Tenshou Nakamura, Kyota. Uda, Shuji Okada, Ryohei Yamakado, Lina Sun, Yoshiyuki Suzuri, Philipp Stadler, Oleg Dimitriev, Tsukasa Yoshida
  • Organizer: The 20th International Young Scientists Conference Optics and High Technology Material Science
  • Int'l Joint Research
• [Presentation] Synthesis of Viologen/Indanyl Organic Salts and their CT Properties (2019)
  • Author(s): Erika Saito, Taichi Yasuhara, Shuji Okada, Ryohei Yamakado, Jun Matsui, Hiroshi Katagiri, Wataru Fujiwara, Akito Masuhara, Matthew White, Randall Headrick, Tsukasa Yoshida
  • Organizer: The 20th International Young Scientists Conference Optics and High Technology Material Science
  • Int'l Joint Research
• [Presentation] Concerted Photoluminescence of Electrochemically Self-Assembled CuSCN / Stilbazolium Dye Hybrid Thin Films (2019)
  • Author(s): Kyota Uda, Yuki Tsuda, Shuji Okada, Ryohei Yamakado, Lina Sun, Yoshiyuki Suzuri, Matthew Schuette White, Madalina Furis, Philipp Stadler, Oleg Dimitriev, Tsukasa Yoshida
  • Organizer: SPO 2019 (The 20th International Young Scientists Conference Optics and High Technology Material Science)
  • Int'l Joint Research
• [Presentation] Synthesis Alkane Viologen Cation/ Indanyl Anion and Property Evaluation (2019)
  • Author(s): Erika Saito, Taichi Yasuhara, Shuji Okada, Ryohei Yamakado, Jun Matsui, Hiroshi Katagiri, Wataru Fujiwara, Akito Masuhara, Matthew White, Randall Headrick, Tsukasa Yoshida
  • Organizer: 2019 International Conference on Smart Systems Engineering(Smasys 2019)
  • Int'l Joint Research
• [Presentation] Electrochemical CO2 Reduction Catalytic Activity Comparison of Polydopamine on Various N-doped Carbon Substrates (2019)
  • Author(s): Yuya Harada, Nobuyuki Nishiumi, Philipp Stadler, Hidenobu Shiroishi, Tsukasa Yoshida
  • Organizer: 2019 International Conference on Smart Systems Engineering(Smasys 2019)
  • Int'l Joint Research
• [Presentation] Synthesis Alkane Viologen Cation/ Indanyl Anion and Property Evaluation (2019)
  • Author(s): Erika Saito, Taichi Yasuhara, Shuji Okada, Ryohei Yamakado, Jun Matsui, Hiroshi Katagiri, Wataru Fujiwara, Akito Masuhara, Matthew White, Randall Headrick, Tsukasa Yoshida
  • Organizer: 2019 Nanjing University-Yamagata University Students Workshop
  • Int'l Joint Research
• [Presentation] Synthesis Alkane Viologen Cation/ Indanyl Anion and Property Evaluation (2019)
  • Author(s): Erika Saito, Taichi Yasuhara, Shuji Okada, Ryohei Yamakado, Jun Matsui, Hiroshi Katagiri, Wataru Fujiwara, Akito Masuhara, Matthew White, Randall Headrick, Tsukasa Yoshida
  • Organizer: The 5th Joint Symposium of Donghua University and Yamagata University
  • Int'l Joint Research
• [Presentation] Electrochemical CO2 Reduction Catalytic Activity Comparison of Polydopamine on Various N-doped Carbon Substrates (2019)
  • Author(s): Yuya Harada, Nobuyuki Nishiumi, Philipp Stadler, Hidenobu Shiroishi, Tsukasa Yoshida
  • Organizer: 2019 Nanjing University-Yamagata University Students Workshop
  • Int'l Joint Research
• [Presentation] Electrochemical CO2 Reduction Catalytic Activity Comparison of Polydopamine on Various N-doped Carbon Substrates (2019)
  • Author(s): Yuya Harada, Nobuyuki Nishiumi, Philipp Stadler, Hidenobu Shiroishi, Tsukasa Yoshida
  • Organizer: The 5th Joint Symposium of Donghua University and Yamagata University
  • Int'l Joint Research
• [Presentation] Electrodeposition of Zn-Terephthalate MOF Thin Films for Redox Battery (2019)
  • Author(s): Tenshou Nakamura, Shotaro Ueda, Satoshi Chubachi, Kyota Uda, Yuki Tsuda, Yuji Hirai, Tsukasa Yoshida
  • Organizer: 2019 International Conference on Smart Systems Engineering(Smasys 2019), Yamagata University
  • Int'l Joint Research
• [Presentation] Electrodeposition of Zn-Terephthalate MOF Thin Films for Redox Battery (2019)
  • Author(s): Tenshou Nakamura, Shotaro Ueda, Satoshi Chubachi, Kyota Uda, Yuki Tsuda, Yuji Hirai, Tsukasa Yoshida
  • Organizer: 2019 Nanjing University-Yamagata University Students Workshop, Nanjing University
  • Int'l Joint Research
• [Presentation] Electrodeposition of Zn-Terephthalate MOF Thin Films for Redox Battery (2019)
  • Author(s): Tenshou Nakamura, Shotaro Ueda, Satoshi Chubachi, Kyota Uda, Yuki Tsuda, Yuji Hirai, Tsukasa Yoshida
  • Organizer: The 5th Joint Symposium of Donghua University and Yamagata University
  • Int'l Joint Research
• [Presentation] Concerted Photoluminescence of Electrochemically Self-Assembled CuSCN / Stilbazolium Dye Hybrid Thin Films (2019)
  • Author(s): Kyota Uda, Yuki Tsuda, Shuji Okada, Ryohei Yamakado, Lina Sun, Yoshiyuki Suzuri, Matthew Schuette White, Madalina Furis, Philipp Stadler, Oleg Dimitriev, Tsukasa. Yoshida
  • Organizer: IPOMY (The 2nd International Conference of Polymeric and Organic Materials in Yamagata University)
  • Int'l Joint Research
• [Presentation] Electrochemical Self-Assembly of CuSCN/4-Cyano-4’-(N’-Methyl)Stilbazolium Hybrid Thin Films (2019)
  • Author(s): Toru Suzuki, Yuki Tsuda, Tensho Nakamura, Kyota Uda, Ryohei Yamakado, Shuji Okada, Tsukasa Yoshida
  • Organizer: The second International Conference of Polymeric and Organic Materials in Yamagata University
  • Int'l Joint Research
• [Presentation] Synthesis of Zinc-Terephthalate Metal Organic Frameworks by Microwave-Assisted Hydrothermal Reaction and Their Application to Redox Batteries (2019)
  • Author(s): Satoshi Chubachi, Tensho Nakamura, Shotaro Ueda, Yuji Hirai, Tsukasa Yoshida
  • Organizer: The second International Conference of Polymeric and Organic Materials in Yamagata University
  • Int'l Joint Research
• [Presentation] Switching of Dye Loading Mechanism in Electrochemical Self-Assembly of CuSCN/4-(N,N-dimethylamino)-4’-(N’-methyl)Stilbazolium Hybrid Thin Films (2019)
  • Author(s): Yuki Tsuda, Tenshou Nakamura, Kyota. Uda, Shuji Okada, Ryohei Yamakado, Philipp Stadler, Oleg Dimitriev, Tsukasa Yoshida
  • Organizer: IPOMY (The 2nd International Conference of Polymeric and Organic Materials in Yamagata University)
  • Int'l Joint Research
• [Presentation] Challenges towards 100% renewable energy society -organic PV, redox flow battery and solar fuels (2019)
  • Author(s): Tsukasa Yoshida
  • Organizer: IEEE ICICE 2019
  • Int'l Joint Research / Invited
• [Presentation] ポリドーパミンとその複合体および類似化合物を用いた常温常圧における二酸化炭素電解還元触媒の開発 (2019)
  • Author(s): 川口 楓,城石 英伸,吉田 司,宮澤 薫,田中 優実
  • Organizer: 電気化学会第86回大会
• [Presentation] ビオロゲンカチオン/テトラシアノインダンアニオン有機塩の合成とCT特性 (2019)
  • Author(s): 齋藤 恵里佳,津田 勇希,安原 大智,岡田 修司,山門 陵平,松井 淳,片桐 洋史,増原 陽人,White Matthew,Headrick Randall,吉田 司
  • Organizer: 電気化学会第86回大会
• [Presentation] アンモニアスラグからの回収バナジウムを用いるレドックスフロー電池 (2019)
  • Author(s): 西海 信之,孫 鶴,高橋 寛貴,根津 京介,鎌田 雄貴,佐藤 慧,松嶋 雄太,Ajit Khosla,川上 勝,佐合 益幸,硯里 善幸,古川 英光,Philipp Stadler,吉田 司
  • Organizer: 電気化学会第86回大会
• [Presentation] CuSCN/スチルバゾリウム色素ハイブリッド薄膜の自己組織化電析と協奏的蛍光機能 (2019)
  • Author(s): 宇田 恭太,津田 勇希,岡田 修司,山門 陵平,Sun Lina,硯里 善幸,White Matthew, Furis Madalina,Stadler Philipp,Dimitriev Oleg,吉田 司
  • Organizer: 電気化学会第86回大会
• [Presentation] 亜鉛/テレフタル酸金属有機構造体を負極材料に用いたレドックス電池の評価 (2019)
  • Author(s): 平井 裕士,植田 將太郎,中村 天彰,孫 鶴,松嶋 雄太,城石 英伸,吉田 司
  • Organizer: 電気化学会第86回大会
• [Presentation] 遷移金属ドープ酸化亜鉛ナノ微粒子のマイクロ波水熱合成と水酸化触媒機能 (2019)
  • Author(s): 西海 信之,孫 鶴,城石 英伸,松嶋 雄太,Philipp Stadler,吉田 司
  • Organizer: 電気化学会第86回大会
• [Presentation] Electrochemical materials and systems towards realization of 100% renewable energy society (2019)
  • Author(s): Tsukasa Yoshida
  • Organizer: IWRED 2019
  • Int'l Joint Research / Invited
• [Presentation] Electrochemical Evaluation of Zinc-based MOFs for Redox Batteries (2019)
  • Author(s): Yuji Hirai, S. Ueda, Nobuyuki Nishiumi, He Sun, Yuta Matsushima, Hidenobu Shiroishi, Akito Masuhara and Tsukasa Yoshida
  • Organizer: IWRED 2019
  • Int'l Joint Research
• [Presentation] Switching of Dye Loading Mechanism in Electrochemical Self-Assembly of CuSCN/DAS Hybrid Thin Films (2019)
  • Author(s): Yuki Tsuda, Tenshou. Nakamura, Kyota Uda, Shuji Okada, Lina Sun, Yoshiyuki Suzuri, Philipp Stadler, Tsukasa. Yoshida
  • Organizer: The First International Conference of Polymeric and Organic Materials Yonezawa (IPOMY)
  • Int'l Joint Research
• [Presentation] Microwave-assisted hydrothermal synthesis of Co doped ZnO nanoparticles and their electrocatalytic activity for water oxidation (2019)
  • Author(s): Nobuyuki Nishiumi, He Sun, Hidenobu Shiroishi, Yuta Matsushima, Philipp Stadler, Tsukasa Yoshida
  • Organizer: The First International Conference of Polymeric and Organic Materials Yonezawa (IPOMY)
  • Int'l Joint Research
• [Presentation] Electrochemical Evaluation of Zinc-based MOFs for Redox Batteries (2019)
  • Author(s): Yuji Hirai, S. Ueda, Nobuyuki Nishiumi, He Sun, Yuta Matsushima, Hidenobu Shiroishi, Akito Masuhara and Tsukasa Yoshida
  • Organizer: The First International Conference of Polymeric and Organic Materials Yonezawa (IPOMY)
  • Int'l Joint Research
• [Presentation] Challenges towards 100% Renewable Energy Society - Organic Solar Cells, Redox Batteries and Electrocatalysis (2018)
  • Author(s): Tsukasa Yoshida
  • Organizer: Joint Ukrainian-Japanese Workshop “Materials and processes for energy conversion”
  • Int'l Joint Research
• [Presentation] Optical properties of CuSCN / dye hybrid thin films (2018)
  • Author(s): Kyota Uda, Yuki Tsuda, Syuji Okada, Ryohei Yamakado, Lina Sun, Yoshiyuki Suzuri, M. S. White, M. Furis, Philipp Stadle, O. Dimitriev, Tsukasa Yoshida
  • Organizer: Joint Ukrainian-Japanese Workshop “Materials and processes for energy conversion”
  • Int'l Joint Research
• [Presentation] Synthesis of Zn-terephthalic acid MOFs and redox batteries (2018)
  • Author(s): Yuji Hirai, Syotaro Ueda, Nobuyuki Nishiumi, He Sun, Yuta Matsushima, Hidenobu Shiroishi, Akito Masuhara and Tsukasa Yoshida
  • Organizer: Joint Ukrainian-Japanese Workshop “Materials and processes for energy conversion”
  • Int'l Joint Research
• [Presentation] Electrochemical Self-assembly of CuSCN-dye Hybrid Thin Films (2018)
  • Author(s): Yuki Tsuda, Tenshou Nakamura, Kyota Uda, Shuji Okada, Lina Sun, Yoshiyuki Suzuri, Philipp Stadler, Tsukasa Yoshida
  • Organizer: Joint Ukrainian-Japanese Workshop “Materials and processes for energy conversion”
  • Int'l Joint Research
• [Presentation] Electrochemical Self-Assembly of CuSCN / Dye Hybrid Thin Films and Their Optical Properties (2018)
  • Author(s): Kyota Uda, Tensho Nakamura, Yuki Tsuda, He Sun, Lina Sun, Matthew Schuette White, Madalina Furis, Tsukasa Yoshida
  • Organizer: Smasys 2018 ( The 6th Internal Conference on Smart System Engineering 2018)
  • Int'l Joint Research
• [Presentation] Electrodeposition of Zn-Terephthalate Metal-Organic Framework Thin Films (2018)
  • Author(s): T. Nakamura, S. Ueda, K. Uda, Y. Tsuda, Y. Hirai, H. Sun and T. Yoshida
  • Organizer: Smasys 2018 ( The 6th Internal Conference on Smart System Engineering 2018)
  • Int'l Joint Research
• [Presentation] Printable Paper Electrode for Electrochemical Sensors (2018)
  • Author(s): Ryota Sato, He Sun, Ajit Khosla, Praveen Kumar Sekhar, Tsukasa Yoshida
  • Organizer: Smasys 2018 ( The 6th Internal Conference on Smart System Engineering 2018)
  • Int'l Joint Research
• [Presentation] Vanadium Redox Flow Batteries Fabricated by 3D Printing and Employing Recycled Vanadium Collected from Ammonia Slag (2018)
  • Author(s): He Sun, Hirotaka Takahashi, Lina Sun, Kei Sato, Yuta Matsushima, Ajit Khosla, Masaru Kawakami, Hidemitsu Furukawa, and Tsukasa Yoshida
  • Organizer: First International Conference on 4D Materials and Systems
  • Int'l Joint Research
• [Presentation] Time- and Frequency-resolved Photoelectrochemical Measurements on Dye Sensitized Solar Cells Employing (102) and (100) Dominant ZnO Nanocrystals (2018)
  • Author(s): He Sun, Raffeal Ruess, Derck Schlettwein, Tsukasa Yoshida
  • Organizer: First International Conference on 4D Materials and Systems
  • Int'l Joint Research
• [Presentation] Swithing of Dye Loading Mechanism in Electrochemical Self-Assembly of CuSCN-DAST Hybrid Thin Films (2018)
  • Author(s): Yuki Tsuda, Tenshou Nakamura, Kyota Uda, He Sun, Lina Sun, Shuji Okada, Akito Masuhara, Phillip Stadler, Niyazi Serdar Sariciftci, Matthew Schuette White, Tsukasa Yoshida
  • Organizer: First International Conference on 4D Materials and Systems
  • Int'l Joint Research
• [Presentation] Microwave Synthesis of Zn-Terephthalate MOF As Anode Material for Redox Batteries (2018)
  • Author(s): Yuji Hirai, Nobuyuki Nishiumi, He Sun, Yuta Matsushima, Akito Masuhara, Hidenobu Shiroishi and Tsukasa Yoshida
  • Organizer: First International Conference on 4D Materials and Systems
  • Int'l Joint Research
• [Presentation] Electrochemical Self-Assembly of CuSCN / Dye Hybrid Thin Films and Their Optical Properties (2018)
  • Author(s): Kyota Uda, Tensho Nakamura, Yuki Tsuda, He Sun, Lina Sun, M. S. White, Syuji Okada, Akito Masuhara, Tsukasa Yoshida
  • Organizer: First International Conference on 4D Materials and Systems
  • Int'l Joint Research
• [Presentation] Printing of Paper Electrode on Para-Aramid Paper for Electrochemical Sensors (2018)
  • Author(s): Ryota Sato, He Sun, Ajit Khosla, Praveen Kumar Sekhar, Tsukasa Yoshida
  • Organizer: First International Conference on 4D Materials and Systems
  • Int'l Joint Research
• [Presentation] Redox Flow Batteries Fabricated by 3D Printing and Employing Recycled Vanadium from Ammonia Slag (2018)
  • Author(s): He Sun, Hirotaka Takahashi, Lina Sun, Kei Sato, Yuta Matsushima, Ajit Khosla, Masaru Kawakami, Hidemitsu Furukawa, and Tsukasa Yoshida
  • Organizer: Japanese-Austrain Symposium “Sustainable Catalysis” Kick-off Meeting
  • Int'l Joint Research
• [Presentation] Microwave-assisted hydrothermal synthesis of transition metal doped ZnO nanoparticles for water oxidation electrocatalysis (2018)
  • Author(s): Nobuyuki Nishiumi, He Sun, Hidenobu Shiroishi, Yuta Matsushima, Philipp Stadler, Tsukasa Yoshida
  • Organizer: Japanese-Austrain Symposium “Sustainable Catalysis” Kick-off Meeting
  • Int'l Joint Research
• [Remarks] 吉田研究室ホームページ
  • URL: http://yoshidalab.yz.yamagata-u.ac.jp/