Fabrication of nano-ionics bulk materials by soft chemical approach

• Project/Area Number: 16079210
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: National Institute for Materials Science
• Principal Investigator: MORI Toshiyuki National Institute for Materials Science, 燃料電池材料センター, 副センター長 (80343854)
• Co-Investigator(Kenkyū-buntansha): YE Fei 独立行政法人物質・材料研究機構, 燃料電池材料センター, 研究員 (10450298) ; KOBAYASHI Kiyoshi 独立行政法人物質・材料研究機構, 燃料電池材料センター, 主任研究員 (90357020) ; OU Ding Rong 独立行政法人物質・材料研究機構, 燃料電池材料センター, 特別研究員 (20450299) ; YARONG Wang 独立行政法人物質・材料研究機構, エコマテリアル研究センター, 特別研究員 ; DING Rong Ou 独立行政法人物質・材料研究機構, エコマテリアル研究センター, 特別研究員 ; YARONG WANG 独立行政法人物質・材料研究機構, エコマテリアル研究センター, 特別研究員
• Project Period (FY): 2004 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥40,800,000 (Direct Cost: ¥40,800,000); Fiscal Year 2008: ¥7,800,000 (Direct Cost: ¥7,800,000); Fiscal Year 2007: ¥7,800,000 (Direct Cost: ¥7,800,000); Fiscal Year 2006: ¥9,200,000 (Direct Cost: ¥9,200,000); Fiscal Year 2005: ¥9,200,000 (Direct Cost: ¥9,200,000); Fiscal Year 2004: ¥6,800,000 (Direct Cost: ¥6,800,000)
• Keywords: 燃料電池 / ナノ構造化 / ナノ構造解析 / バルク固体 / 高温ナノイオニクス / 酸化物イオン伝導体 / マイクロドメイン / ヘテロ界面 / 燃科電池 / 酸化物シオン伝導体

Research Abstract

「ソフト化学的方法によるナノイオニクスバルク体の創製」研究を発展させるべく、バルク体中に埋もれたナノ構造が、酸化物イオン伝導特性に及ぼす影響を、MxCe1-xO2-x/2(M:2価または3価カチオン、0<X<1)化合物について、系統的に検討し、かつ理論的な解析を行うことで、新しいナノイオニクス分野の発展に資する材料設計手法の確立を行うことを目的とする。

Research Products

• [Journal Article] TEM and XPS analysis of Ca_xCe_<1-x>O_<2-y> (x=0.05-0.5) as electrolyte materials for solid oxide fuel cells (2009)
  • Author(s): Yan M, Mori T, Zou J, Ye F, Ou D R, and Drennan J.
  • Journal Title: Acta Materialia 57 Pages: 722-731
  • Peer Reviewed
• [Journal Article] Oxygen-vacancy ordering in lanthanide-doped ceria : dopant-type dependence and structure model (article number 024108-1) (2008)
  • Author(s): Ou D R, Mori T, Ye F, Zou J, and Drennan J
  • Journal Title: Physical Review B 77
  • Peer Reviewed
• [Journal Article] Simulation of ordering in large defect clusters in gadolinium-doped ceria (2008)
  • Author(s): Ye F, Mori T, Ou D R, Cormack A, Lewis R and Drennan J.
  • Journal Title: Solid State Ionics 179 Pages: 1962-1967
  • Peer Reviewed
• [Journal Article] Effects of dopant concentration and calcination temperature on the microstructure of Ca-doped ceria nano-powders (2008)
  • Author(s): Yan M, Mori T, Ye F, Ou D R, Zou J, and Drennan J
  • Journal Title: J. Europ. Ceram. Soc. 28 Pages: 2709-2716
  • Peer Reviewed
• [Journal Article] Compositional and structural characteristics of nano-sized domains in gadolinium-doped ceria (2008)
  • Author(s): Ye F, Mori T, Ou D R, Zou J, Graeme A, and Drennan J.
  • Journal Title: Solid State Ionics 179 Pages: 827-831
  • Peer Reviewed
• [Journal Article] Design of nano-structured ceria based solid electrolytes for development of IT-SOFC (2008)
  • Author(s): Mori T, Buchanan R, Ou D R, Ye F, Kobayashi T, Zou J, and Drennan J
  • Journal Title: Journal of Solid State Electrochemistry 12 Pages: 841-849
  • Peer Reviewed
• [Journal Article] Development of high quality Pt-CeO_2 electrodes supported on carbon black for direct methanol fuel cell applications (2008)
  • Author(s): Takahashi M, Mori T, Vinu A, Ou D R, Kobayashi H, and Drennan J
  • Journal Title: Advances in Applied Ceramics 107 Pages: 57-63
  • Peer Reviewed
• [Journal Article] Microstructural characterization of Ce_<1-x>Tb_xO_<2-δ> (0.60<x<0.90) sintered samples (2008)
  • Author(s): Ye F, Mori T, Ou D R, Zou J, and Drennan J
  • Journal Title: Materials Research Bulletin 43 Pages: 759-764
  • Peer Reviewed
• [Journal Article] Oxygen-vacancy ordering in lanthanide-doped ceria : dopant-type dependence and structure model (2008)
  • Author(s): Ou D R, Mori T, Ye F, Zou J, and Drennan J
  • Journal Title: Physical Review B 77
  • Peer Reviewed
• [Journal Article] ナノイオニクス-最新技術とその展望- (2008)
  • Author(s): 森利之
  • Journal Title: ソフト化学的手法によるナノイオニクスバルク体の創製(シーエムシー出版) Chapter 9 Pages: 96-110
• [Journal Article] Ionic Conductivities and Microstructures of Ytterbium Doped Ceria (2007)
  • Author(s): Ye F, Mori T, Ou D R, Takahashi M, Zou J and Drennan J
  • Journal Title: J.Electrochem.Soc. 154(2)
  • Peer Reviewed
• [Journal Article] Microstructural inhomogeneity in holmium-doped ceri and its influence on the ionic conduction (2007)
  • Author(s): Ou D R, Mori T, Ye F, Zou J, Auchterlonie G, and Drennan J,
  • Journal Title: Journal of the Electrochemical Society Vol.154(7)
  • Peer Reviewed
• [Journal Article] Influence of nano-structural feature of M_<0.25>Ce_<0.75>O_<1.875> (M=Gd, Yb,Y) solid electrolytes on their electronic properties (2007)
  • Author(s): Mori T, Buchanan R, Ou D R, YeF, Suga H, and Drennan J,
  • Journal Title: Transactions of the Materials Research Society of Japan Vol.32(4) Pages: 943-946
  • Peer Reviewed
• [Journal Article] Compositional and valent state in-homogeneities and orderin oxygen vacancies in terbium doped ceria (2007)
  • Author(s): Ye F, Mori T, Ou D R, Zou J, Auchterlonie G, and Drennan J,
  • Journal Title: Journal of Applied Physics Vol.101(11)
  • Peer Reviewed
• [Journal Article] Microstructural characterization of terbium doped ceria, (2007)
  • Author(s): Ye F, Mori T, Ou D R, Zou J, and Drennan J,
  • Journal Title: Materials Research Bulletin Vol.42(5) Pages: 943-949
  • Peer Reviewed
• [Journal Article] Evidence of intragranular segregation of dopant cations in heavily yttrium-doped ceria, (2007)
  • Author(s): Ou D R, Mori T, Ye F, Zou J, and Drennan J
  • Journal Title: Electrochemical and Solid-State Letters Vol.10(1) Pages: 1-3
  • Peer Reviewed
• [Journal Article] Ionic conductivities and microstructures of ytterbium doped ceria (2007)
  • Author(s): Ye F, Mori T, Ou D R, Zou J, and Drennan J,
  • Journal Title: Journal of the Electrochemical Society Vol.154(2)
  • Peer Reviewed
• [Journal Article] Evidence of intragranular segregation of dopant cations in heavily yttrium-doped ceria (2007)
  • Author(s): D.R.Ou, T.Mori, F.Ye, J.Zou, J.Drennan
  • Journal Title: Electrochemical and Solid-State Letters 10[1] Pages: 1-3
• [Journal Article] Lonic Conductivities and Microstructures of Ytterbium Doped Ceria (2007)
  • Author(s): F.Ye, T.Mori, D.R.Ou, M.Takahashi, J.Zou, J.Drennan
  • Journal Title: Journal of Electrochemical Society 154[2]
• [Journal Article] Design of high quality doped CeO_2 solid electrolytes with nano-hetero structure (2007)
  • Author(s): T.Mori, J.Drennan, D.-R.Ou, F.Ye
  • Journal Title: International Journal of Nuclear Research (NUKLEONIKA) 51
• [Journal Article] Microstructures and electrolytic properties of yttrium-doped ceria electrolytes : Dopant concentration and grain size dependences (2006)
  • Author(s): D.-R.Ou, T.Mori, F.Ye, M.Takahashi, J.Zou, J.Drennan
  • Journal Title: Acta Materialia 54[14] Pages: 3737-3746
• [Journal Article] Local structures around Y and Ce cations in 10 mol% Y_2O_3 doped ceria ceramics by XAFS spectroscopy (2006)
  • Author(s): Y.Wang, H.Kageyama, T.Mori, H.Yoshikawa, J.Drennan
  • Journal Title: Solid State Lonics 177 Pages: 1681-1685
• [Journal Article] Oxygen vacancy ordering in heavily rare earth-doped ceria (2006)
  • Author(s): D.R.Ou, T.Mori, F.Ye, T.Kobayashi, J.Zou, G.Auchterlonie, J.Drennan
  • Journal Title: Applied Physics Letters 89[17] Pages: 1911-1913
• [Journal Article] Influence of microstructure on oxide ionic conductivity in doped CeO_2 electrolytes (2006)
  • Author(s): Toshiyuki Mori, John Drennan
  • Journal Title: J.Electroceremics (印刷中)
• [Journal Article] Synthesis and Characterization of Nanohetero-structured Dy doped CeO2 Solid Electrolytes using Combination Process of Spark Plasma Sintering and Conventional Sintering (2005)
  • Author(s): Mori T, Kobayashi T, Wang Y, Drennan J, Nishimura T, Li J G, and Kobayashi H
  • Journal Title: Journal of the American Ceramic Society Vol.88(7) Pages: 1981-1984
  • Peer Reviewed
• [Journal Article] Synthesis and Characterization of Nanohetero-structured Dy doped CeO_2 Solid Electrolytes using Combination Process of Spark Plasma Sintering and Conventional Sintering (2005)
  • Author(s): Toshiyuki MORI, Tomoaki KOBAYASHI et al.
  • Journal Title: J.Am.Ceram.Soc. 88[7] Pages: 1981-1984
• [Journal Article] Synthesis, characterization, and electrical conduction of 10 mol% Dy_2O_3-doped CeO_2 ceramics (2005)
  • Author(s): Yarong Wang, Toshiyuki Mori, et al.
  • Journal Title: J.Europ.Ceram.Soc. 25 Pages: 949-956
• [Journal Article] Reactive Ce_<0.8>RE_<0.2>O_<1.9> (RE=Gd and Sm) nano-powders : synthesis via homogeneous precipitation, characterization, and low-temperature sintering into dense ceramics (2005)
  • Author(s): Ji Guang Li, Toshiyuki Mori, et al.
  • Journal Title: Mater.Sci. & Eng.B : Solid State Mater.for Adv.Tech. 121(1-2) Pages: 54-59
• [Journal Article] Blue shift of the photoluminescence excitation band of the Sm^<3+> impurity in Pt-CeO_2 powder induced by the electron transfer between CeO_2 and Pt particles (2005)
  • Author(s): Hiromitsu Nakajima, Toshiyuki Mori
  • Journal Title: Chemical Physics Letters 412 Pages: 391-394
• [Journal Article] Correlation between Y_2O_3 concentration and photoluminescence excitation spectra of Tb^<3+> impurity in Y_2O_3-stabilized ZrO_2 (2005)
  • Author(s): Hiromitsu Nakajima, Toshiyuki Mori
  • Journal Title: J.Appl.Phys. 97
• [Journal Article] Synthesis and Characterization of Nanohetero-structured Dy doped CeO_2 SolidElectrolytes using Combination Process of Spark Plasma Sintering and Conventional Sintering (2005)
  • Author(s): Toshiyuki MORI
  • Journal Title: Journal of American Ceramic Society (In Press)
• [Journal Article] Influence of nano-structural features on electrolytic properties of Gd doped CeO_2 solid electrolytes (2004)
  • Author(s): Toshiyuki MORI
  • Journal Title: Journal of Ceramic Society of Japan 112(5)
• [Journal Article] Development of doped CeO_2 electrolytes for low temperature operation of SOFC - A challenge for development of high quality solid electrolytes with nano-heterostructure (2004)
  • Author(s): Toshiyuki MORI
  • Journal Title: FUEL CELLS 4(1) Pages: 91-96
• [Journal Article] Electrolytic properties in nano-structured Dy_xCe_<1-x>O_<2-δ>(x=0.1-0.25) solid electrolytes for fuel cell application (2004)
  • Author(s): Tomoaki Kobayashi, Toshiyuki Mori
  • Journal Title: Proc.The Sixth International Conference on EcoBalance Pages: 641-642
• [Journal Article] Nano-structural features in rare earth doped CeO_2 electrolytes for solid oxide fuel cells application (2004)
  • Author(s): Toshiyuki Mori
  • Journal Title: Transactions of the Materials Research Society of Japan 29(5) Pages: 1973-1976
• [Journal Article] Synthesis, characterization, and electrical conduction of 10mol% Dy_2O_3-doped CeO_2 ceramics
  • Author(s): Yarong Wang, Toshiyuki Mori
  • Journal Title: Journal of European Ceramic Society (In Press)
• [Presentation] Nano-sized domains in gadolinium-doped ceria and an explanation of their structure based on computer simulation of defect cluster (2009)
  • Author(s): Fei YE, Toshiyuki MORI, Ding Rong OU, Jin Zou and John Drennan
  • Organizer: 第47回セラミックス基礎科学討論会
  • Place of Presentation: 大阪
• [Presentation] ナノ構造化燃料電池用固体電解質及び電極材料の設計 (2009)
  • Author(s): 森利之
  • Organizer: FC EXPO 2009 〜国際水素・燃料電池展〜
  • Place of Presentation: 東京
• [Presentation] 燃料電池の現状と将来 (2008)
  • Author(s): 森利之
  • Organizer: 第19回溶接技術講演会
  • Place of Presentation: 大阪
  • Year and Date: 2008-12-04
• [Presentation] Influence of nano-in-homogeneity in doped CeO_2 solid electrolytes (2008)
  • Author(s): Toshiyuki MORI
  • Organizer: Innovative Dynamic Studies of Materials at the Nanoscale, Engineering Conferences International
  • Place of Presentation: Gyeongju(Korea)
• [Presentation] Introduction of crystallography for a design of functional materials (2008)
  • Author(s): Toshiyuki MORI
  • Organizer: Erasmus Mundus and European PhD students course
  • Place of Presentation: マルセイユ(France)
• [Presentation] Comparison of Conducting Properties of M0.25Ce0.75O1.875 (M=Dy, Gd) Sintered Specimens with Different In-homogeneity of Microstructure (2008)
  • Author(s): Toshiyuki MORI, Hirokazu Suga, Fei YE, Ding Rong Ou, Toshiyuki NISHIMURA, John Drennan, Hidehiko KOBAYASHI
  • Organizer: The IUMRS International Conference in Asia 2008 (IUMRS-ICA 2008)
  • Place of Presentation: 名古屋
• [Presentation] マイクロドメイン構造を有するドープドセリア焼結体中の欠陥構造シミュレーション (2008)
  • Author(s): 菅広和, 森利之, Fei YE, Ding Rong OU, Alstair N Cormack, John Drennan, 小林秀彦
  • Organizer: 日本セラミックス協会第21回秋季シンポジウム
  • Place of Presentation: 北九州市小倉
• [Presentation] M_<0.25>Ce_<0.75>O_<1.875> (M=Dy, Gd)常圧焼結体とパルス通電焼結体の活性化エネルギーの比較 (2008)
  • Author(s): 菅広和, 森利之, Fei YE, Ding Rong OU, 西村聡之, John Drennan, 小林秀彦
  • Organizer: 第24回日本セラミックス協会関東支部研究発表会
  • Place of Presentation: 神奈川県仙石原
• [Presentation] Microstructural features of Ni-SDC cermet anode for intermediate-temperature SOFCs applications (2008)
  • Author(s): Ding Rong OU, Fei YE, Toshiyuki MORI, Masaru Miyayama, Satoshi Nakayama, Jin Zou, Graeme J. Auchterlonie, John Drennan
  • Organizer: IUMRS-ICEM 2008 International Conference on Electronic Materials
  • Place of Presentation: シドニー(豪州)
• [Presentation] TEM study of nano-sized domains in gadolinium-doped ceria and an explanation of their structure based on computer simulation of oxygen vacancy clusters (2008)
  • Author(s): Fei YE, Toshiyuki MORI, Ding Rong OU, Jin Zou and John Drennan
  • Organizer: IUMRS-ICEM 2008, International Conference on Electronic Material
  • Place of Presentation: シドニー(豪州)
• [Presentation] Design of nano-structured doped CeO2 solid electrolyte for fuel cell application (2005)
  • Author(s): Mori T (invited), Drennan J, Ou D R, Ye F
  • Organizer: 211th Electrochemical Society Meeting, Electrochemical Society
  • Place of Presentation: Hilton Chicago, Chicago, Illinois ,United State of America
• [Book] ソフト化学的手法によるナノイオニクスバルク体の創製,新材料・新素材シリーズ,ナノイオニクス-最新技術とその展望-(山口周監修) (2008)
  • Author(s): 森利之
  • Publisher: 辻賢司発行,株式会社シーエムシー出版(東京都千代田区)
• [Remarks] (全業績(論文56件、発表96件他)が閲覧可能なURL)
  • URL: http://fuelcellmaterials.jp/modules/myinfo3/index.php?uid=101
• [Patent(Industrial Property Rights)] Dyドープナノセリア系焼結体及びその製造方法 (2004)
  • Inventor(s): 森 利之
  • Industrial Property Rights Holder: 物質・材料研究機構
  • Industrial Property Number: 2004-064616
  • Filing Date: 2004-03-08