Exploration of high-efficiency catalyst and elucidation of its reaction mechanism through development of ultra-high-sensitive visualization method of local electric field

• Project/Area Number: 15H02195
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Energy-related chemistry
• Research Institution: University of Tsukuba
• Principal Investigator: FUJITA Jun-ichi 筑波大学, 数理物質系, 教授 (10361320)
• Co-Investigator(Kenkyū-buntansha): 竹口 雅樹 国立研究開発法人物質・材料研究機構, その他部局等, その他研究員 (30354327) ; 小川 真一 国立研究開発法人産業技術総合研究所, ナノエレクトロニクス研究部門, 研究員 (00590085) ; 村上 勝久 国立研究開発法人産業技術総合研究所, ナノエレクトロニクス研究部門, 研究員 (20403123)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥42,900,000 (Direct Cost: ¥33,000,000、Indirect Cost: ¥9,900,000); Fiscal Year 2017: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000); Fiscal Year 2016: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000); Fiscal Year 2015: ¥23,660,000 (Direct Cost: ¥18,200,000、Indirect Cost: ¥5,460,000)
• Keywords: 低加速電子線 / Rutherford散乱 / 偏向 / 局在場 / 可視化 / 触媒 / 電化局在 / 走査透過電子顕微鏡 / 局在電荷 / ラザフォード散乱 / CNT / 触媒反応機構 / 電子線 / 触媒反応 / グラフェン / 電子顕微鏡 / 電荷

Outline of Final Research Achievements

In this research, we developed an ultra-sensitive electron beam deflection angle detection system using 1 keV of low electron acceleration SEM system combined with differential amplifier. The maximum sensitivity of the beam deflection angle was 10 μRad and a localized electric field of 0.1 V / μm was visualized. We have conducted research to elucidate the catalytic reaction mechanism from the viewpoint of the localized charge depending on the crystal structure and its size.

Research Products

• [Int'l Joint Research] National Taiwan University/Department of physics(Taiwan)
• [Journal Article] High-sensitivity visualization of localized electric fields using low-energy electron beam deflection (2018)
  • Author(s): Samuel Jeong, Yoshikazu Ito, Gary Edwards, Jun-ichi Fujita
  • Journal Title: Japanese Journal of Applied Physics Volume: 印刷中 Issue: 6 Pages: 065201-065201
  • DOI: 10.7567/jjap.57.065201
  • NAID: 210000149125
  • Peer Reviewed
• [Journal Article] Cooperation between holey graphene and NiMo alloy for hydrogen evolution in an acidic electrolyte (2018)
  • Author(s): Yoshikazu Ito, Tatsuhiko Ohto, Daisuke Hojo, Mitsuru Wakisaka, Yuki Nagata, Linghan Chen, Kailong Hu, Masahiko Izumi, Jun-ichi Fujita, and Tadafumi Adschiri
  • Journal Title: ACS Catal. Volume: in press Issue: 4 Pages: 3579-3586
  • DOI: 10.1021/acscatal.7b04091
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Bottom-up Synthesis of Porous NiMo Alloy for Hydrogen Evolution Reaction (2018)
  • Author(s): Hu Kailong、Jeong Samuel、Wakisaka Mitsuru、Fujita Jun-ichi、Ito Yoshikazu
  • Journal Title: Metals Volume: 8 Issue: 2 Pages: 83-83
  • DOI: 10.3390/met8020083
  • NAID: 120007133858
  • Peer Reviewed / Open Access
• [Journal Article] Visualization of Localized Field Using Deflection of Low-Energy Electron Beam with SEM/STEM (2017)
  • Author(s): FUJITA Jun-ichi
  • Journal Title: Journal of the Vacuum Society of Japan Volume: 60 Issue: 10 Pages: 397-405
  • DOI: 10.3131/jvsj2.60.397
  • NAID: 130006900187
  • ISSN: 1882-2398, 1882-4749
  • Peer Reviewed / Open Access
• [Journal Article] Near room temperature chemical vapor deposition of graphene with diluted methane and molten gallium catalyst (2017)
  • Author(s): Fujita Jun-ichi、Hiyama Takaki、Hirukawa Ayaka、Kondo Takahiro、Nakamura Junji、Ito Shin-ichi、Araki Ryosuke、Ito Yoshikazu、Takeguchi Masaki、Pai Woei Wu
  • Journal Title: Scientific Reports Volume: 7 Issue: 1 Pages: 1-7
  • DOI: 10.1038/s41598-017-12380-w
  • NAID: 120007134786
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Graphitic cage transformation by electron-beam-induced catalysis with alkali-halide nanocrystals (2016)
  • Author(s): J. Fujita, M. Tachi, N. Ito1, K. Murakami, and M. Takeguchi
  • Journal Title: Jpn. J. Appl. Phys. Volume: 55 Issue: 5 Pages: 055102-055102
  • DOI: 10.7567/jjap.55.055102
  • NAID: 210000146467
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] High-resolution identification of chemical states in individual metal clusters in an insulating amorphous polymer (2016)
  • Author(s): Y. Kubo, A. Mizoguchi, and J. Fujita
  • Journal Title: Analytical Chemistry Volume: 88 Issue: 10 Pages: 5225-5233
  • DOI: 10.1021/acs.analchem.6b00305
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Graphitic cage transformation under electron beam-induced catalysis with alkali-halide nanocrystals (2016)
  • Author(s): J. Fujita, M. Tachi, N. Ito, K. Murakami, M. Takeguchi
  • Journal Title: Jpn. J. Appl. Phys. Volume: 55 Pages: 055102-055102
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Direct synthesis of large area graphene on insulating substrate by gallium vaporassisted chemical vapor deposition (2015)
  • Author(s): K. Murakami, S. Tanaka, A. Hirukawa, T. Hiyama, T. Kuwajima, E. Kano, M. Takeguchi, and J. Fujita
  • Journal Title: Appl. Phys. Lett. Volume: 106 Issue: 8 Pages: 093112-093112
  • DOI: 10.1063/1.4942885
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Interactions between C and Cu Atoms in Single-layer Graphene: Direct Observation and Modelling (2015)
  • Author(s): Emi Kano, Ayako Hashimoto, Tomoaki Kaneko, Nobuo Tajima, Takahisa Ohno and Masaki Takeguchi
  • Journal Title: Nanoscale Volume: 8 Issue: 1 Pages: 529-535
  • DOI: 10.1039/c5nr05913e
  • Peer Reviewed
• [Journal Article] Low-temperature growth of graphene using interfacial catalysis of molten gallium and diluted methane chemical vapor deposition (2015)
  • Author(s): T. Hiyama, K. Murakami, T. Kuwajima, M. Takeguchi, and J. Fujita
  • Journal Title: Appl. Phys. Express Volume: 8 Issue: 9 Pages: 095102-095102
  • DOI: 10.7567/apex.8.095102
  • NAID: 210000137654
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Growth of bridging carbon nanofibers in cracks formed by heat-treating iron oxide thin sheets in acetylene gas (2013)
  • Author(s): T. Hikata, S. Okubo, Y. Higashi, T. Matsuba, R. Utsunomiya, S. Tsurekawa, K. Murakami, J. Fujita
  • Journal Title: AIP Advances Volume: 3 Issue: 4 Pages: 042127-042127
  • DOI: 10.1063/1.4802966
  • Peer Reviewed
• [Presentation] オフセットHAADF-STEMによる局在電場可視化 (2018)
  • Author(s): 菊池優、鄭サムエル、伊藤良一、藤田淳一
  • Organizer: 第65回応用物理学会春季学術講演会
• [Presentation] 低加速電子線偏向を用いた局在電界の可視化 (2018)
  • Author(s): 鄭サムエル、菊池優、伊藤良一、藤田淳一
  • Organizer: 第65回応用物理学会春季学術講演会
• [Presentation] 低加速電子線偏向を用いた高感度局在電界可視化 (2017)
  • Author(s): 鄭サムエル，Gary Edwards, 藤田淳一
  • Organizer: 応用物理学会
  • Place of Presentation: パシフィコ横浜、神奈川県、横浜市
  • Year and Date: 2017-03-14
• [Presentation] Near Room Temperature Graphene-Edge Growth with Diluted Methane Cvd and Molten Gallium Catalys (2017)
  • Author(s): J. Fujita, T. Hiyama, A. Hirukawa, T. Kondo, J. Nakamura, S. Ito, M. Takeguchi, Woei Wu Pai
  • Organizer: PSROC2017
  • Place of Presentation: TamKang Univ., TamKang,Taiwan
  • Year and Date: 2017-01-16
  • Int'l Joint Research / Invited
• [Presentation] High sensitive visualization of localized electric field using low energy electron beam deflection (2017)
  • Author(s): Samuel Jeong, Gary Edwards, Jun-ichi Fujita
  • Organizer: International Conference on Electron, Ion, and Photon Beam Technology and Nanofabrication (EIPBN2017)
  • Int'l Joint Research
• [Presentation] 液体ガリウム触媒を用いた低温におけるグラフェンエッジ成長 (2016)
  • Author(s): 蛭川彩夏,荒木稜佑,藤田淳一
  • Organizer: 応用物理学会
  • Place of Presentation: 朱鷺メッセ、新潟県、新潟市
  • Year and Date: 2016-09-13
• [Presentation] Graphitic cage transformation through electron beam-induced catalysis with alkali-halide nanocrystals (2015)
  • Author(s): J. Fujita, M. Tachi, K. Murakami, and M. Takeguchi
  • Organizer: RPGR2015
  • Place of Presentation: Melbourne, Australia
  • Year and Date: 2015-10-25
  • Int'l Joint Research
• [Presentation] Low-temperature two-step graphene growth using interfacial CVD with molten gallium (2015)
  • Author(s): A. Hirukawa, T. Kuwajima, T. Hiyama, S. Enomoto, N. Ozawa, K. Murakami, and J. Fujita
  • Organizer: RPGR2015
  • Place of Presentation: Melbourne, Australia
  • Year and Date: 2015-10-25
  • Int'l Joint Research
• [Presentation] CVD synthesis of high-quality graphene using liquid gallium catalyst at low temperature (2015)
  • Author(s): T. Kuwajima, T. Hiyama, K. Murakami, M. Takeguchi, and J. Fujita
  • Organizer: NT15
  • Place of Presentation: Nagoya, Aichi, Japan
  • Year and Date: 2015-06-28
  • Int'l Joint Research
• [Book] 低加速電子線 SEM/STEMを用いた局在場可視化技術 (2017)
  • Author(s): 藤田淳一
  • Publisher: 日本真空学会
• [Remarks] 藤田研 ホームページ
  • URL: http://www.bk.tsukuba.ac.jp/~nanofab/index.html
• [Remarks] 藤田・伊藤研 研究内容
  • URL: http://www.bk.tsukuba.ac.jp/~nanofab/Research_index.html