• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2012 Fiscal Year Final Research Report

In situ evaluation of potential distribution in high temperature electrochemical devices

Research Project

  • PDF
Project/Area Number 22360286
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Structural/Functional materials
Research InstitutionTohoku University

Principal Investigator

AMEZAWA Koji  東北大学, 多元物質科学研究所, 教授 (90263136)

Co-Investigator(Kenkyū-buntansha) KAWADA Tatsuya  東北大学, 環境科学研究科, 教授 (10271983)
IGUCHI Fumitada  東北大学, 工学研究科, 准教授 (00361113)
HASHIMOTO Shin-ichi  東北大学, 工学研究科, 准教授 (60598473)
YASHIRO Keiji  東北大学, 多元物質科学研究所, 講師 (20323107)
UNEMOTO Atsushi  東北大学, 多元物質科学研究所, 助教 (10551525)
Project Period (FY) 2010 – 2012
Keywords高温電気化学 / その場計測 / ポテンシャル分布 / 燃料電池 / X線吸収分光
Research Abstract

The chemical potential distribution of the reactive atomic species in high temperature electrochemical devices, such as the oxygen chemical potential in solid oxide fuel cells (SOFCs), was experimentally evaluated under device operating conditions. As results, we succeeded for the first time to clarify the oxygen potential distribution and the effective reaction area in the SOFC mixed-conducting porous cathode. Influences of such a chemical potential distribution on the device performance and durability were also investigated from the thermodynamic and kinetic points of view, taking the SOFC porous cathode as a model case.

  • Research Products

    (49 results)

All 2012 2011 2010 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (42 results) Remarks (1 results)

  • [Journal Article] Electrochemical Oxygen Reduction on LaNi^<0.6>Fe^<0.4>O^<3-δ> Film Electrode2012

    • Author(s)
      Riyan A. Budiman, Shin-ichi Hashimoto, Koji Amezawa, Tatsuya Kawada
    • Journal Title

      Electrochem. Soc. Trans

      Volume: Vol.45, No. 1 Pages: 287-293

    • Peer Reviewed
  • [Journal Article] Stability of La^<0.6>Sr^<0.4>Co^<0.2>Fe^<0.8>O^<3- δ> as SOFC Cathode2012

    • Author(s)
      Mi-Young Oh, Atsushi Unemoto, Koji Amezawa, Tatsuya Kawada
    • Journal Title

      J. Electrochem. Soc

      Volume: Vol. 159, No.10 Pages: F659-F664

    • DOI

      DOI:10.1149/2.063210jes

    • Peer Reviewed
  • [Journal Article] Compositional and Mechanical Stabilities of a (La,Sr)(Co,Fe)O^<3-δ> Cathode under SOFC Operation2012

    • Author(s)
      Tatsuya Kawada, Mi Young Oh, Hidetaka Watanabe, Yuta Kimura, Yoshinobu Fujimaki, Tomohisa Masumitsu, Satoshi Watanabe, Shinichi Hashimoto, Koji Amezawa
    • Journal Title

      Electrochem. Soc. Trans

      Volume: Vol.45, No. 1 Pages: 307-312

    • Peer Reviewed
  • [Journal Article] X-ray Absorption Spectroscopic Study on Mixed Conductive La^<0.6>Sr^<0.4>Co^<0.8>Fe^<0.2>O^<3-δ> Cathodes I. Electrical Conductivity and Electronic Structure2011

    • Author(s)
      Y. Orikasa, K. Amezawa, 他7名
    • Journal Title

      Phys. Chem. Chem. Phys

      Volume: Vol. 13 Pages: 16637-16643

    • DOI

      DOI:10.1039/c1cp20982e

    • Peer Reviewed
  • [Journal Article] X-ray Absorption Spectroscopic Study on La^<0.6>Sr^<0.4>CoO^<3-δ> Cathode Materials Related with Oxygen Vacancy Formation2011

    • Author(s)
      Y. Orikasa, K. Amezawa, 他7名
    • Journal Title

      Phys. Chem. C

      Volume: Vol. 115, No. 33 Pages: 16433-16438

    • Peer Reviewed
  • [Journal Article] Material stability and cation transport of La^<0.6>Sr^<0.4>Co^<0.2>Fe^<0.8>O^<3-δ> in SOFC cathodic conditions2011

    • Author(s)
      M, Oh, A. Unemoto, K. Amezawa, T. Kawada
    • Journal Title

      Electrochem. Soc. Trans

      Volume: Vol.35, No.1 Pages: 2249-2253

    • DOI

      DOI:10.1149/1.3570220

    • Peer Reviewed
  • [Presentation] Novel and Conventional Approaches for the Design of Solid State Ionic Devices2012

    • Author(s)
      Takashi Nakamura, Keiji Yashiro,Koji Amezawa
    • Organizer
      5th french-japanese joint workshop on FRONTIER MATERIALS
    • Place of Presentation
      France, Rennes
    • Year and Date
      20121202-06
  • [Presentation] Evaluation on Reaction Distribution in Porous Cathode for Solid OxideFuel Cell2012

    • Author(s)
      H.Watanabe, S.Hashimoto, K.Amezawa, T.Kawada
    • Organizer
      The 13th Korea-Japan Students' Symposium
    • Place of Presentation
      Korea, Seoul
    • Year and Date
      20121107-09
  • [Presentation] Direct evaluation of oxygen chemical potential in an SOFC cathode by in situ micro XAS2012

    • Author(s)
      Y.Fujimaki, H.watanabe, Y.Kimura, K.Amezawa, Y.Terada, S.Hashimoto, T.Kawada
    • Organizer
      Pacific Rim Meeting 2012(PRIME2012)
    • Place of Presentation
      USA, Honolulu, Hawaii
    • Year and Date
      20121007-12
  • [Presentation] Chemical stability of Ba^<0.5>Sr^<0.5>Co^<0.8>Fe^<0.2>O^<3-δ>(BSCF)2012

    • Author(s)
      Fang Wang, Keiji Yashiro, Koji Amezawa, Junichiro Mizusaki
    • Organizer
      Pacific Rim Meeting 2012(PRIME2012)
    • Place of Presentation
      USA, Honolulu, Hawaii
    • Year and Date
      20121007-12
  • [Presentation] Influence of Mechanical Stress on Oxygen Potential in Nonstoichiometric Oxides2012

    • Author(s)
      Tomohisa Masumitsu, Satoshi Watanabe,Shin-ichi Hashimoto, Koji Amezawa, Tatsuya Kawada
    • Organizer
      Nonstoichiometric Compounds V (An ECI Conference Series)(招待講演)
    • Place of Presentation
      Italy, Sicily
    • Year and Date
      20120923-28
  • [Presentation] Chemical stability of the cubic phase of Ba^<0.5>Sr^<0.5>Co^<0.8>Fe^<0.2>O^<3-δ>(BSCF)2012

    • Author(s)
      Wang Fang, Keiji Yashiro, Koji Amezawa Junichiro Mizusaki
    • Organizer
      9th International Conference on FlowDynamics
    • Place of Presentation
      Sendai
    • Year and Date
      20120919-21
  • [Presentation] in situ測定が切り拓く高温電気化学の新展開2012

    • Author(s)
      雨澤浩史
    • Organizer
      平成24年度化学系学協会東北大会(招待講演)
    • Place of Presentation
      秋田
    • Year and Date
      20120915-16
  • [Presentation] Defects and Their Thermal Equilibrium Concentrations in Proton Conducting LaPO_42012

    • Author(s)
      Hiroaki Matsuo, Hayato Takahashi, Akihide Kuwabara, Koji Amezawa, Shin-ichi Hashimoto, Tatsuya Kawada
    • Organizer
      The 16th International Conference on Solid State Protonic Conductors (SSPC16)
    • Place of Presentation
      France, Grenoble
    • Year and Date
      20120910-14
  • [Presentation] In situ analysis of SOFCs by X-ray absorption spectroscopy2012

    • Author(s)
      Koji Amezawa
    • Organizer
      6th KIFEE Symposium on Environment, Energy and Materials(KIFEE2012)(招待講演)
    • Place of Presentation
      Norway, Trondheim
    • Year and Date
      20120909-12
  • [Presentation] その場マイクロXAS測定を用いたSOFC多孔質空気極における酸素ポテンシャル分布の実験的評価2012

    • Author(s)
      雨澤浩史,藤巻義信,渡邉秀貴,木村勇太,寺田靖子,橋本真一,八代圭司,川田達也
    • Organizer
      第8回固体イオニクスセミナー
    • Place of Presentation
      奈良
    • Year and Date
      20120902-04
  • [Presentation] CHEMICAL STABILITY OF Ba^<0.5>Sr^<0.5>Co^<0.8>Fe^<0.2>O^<3-δ>UNDER DIFFERENT OXYGEN PARTIAL PRESSURE2012

    • Author(s)
      FANG WANG, KEIJI YASHIRO, KOJI AMEZAWA, JUNICHIRO MIZUSAKI
    • Organizer
      The 13th Asian Conference on Solid State Ionics
    • Place of Presentation
      Sendai
    • Year and Date
      20120717-20
  • [Presentation] Novel analytical techniques of interfaces in solid oxide fuel cells using in situ X-ray absorption spectroscopy2012

    • Author(s)
      Koji Amezawa, Yuki Orikasa, Hajime Tanida, Tomoya Uruga, Yasuko Terada, Tatsuya Kawada, Yoshiharu Uchimoto
    • Organizer
      European Materials Research Society(E-MRS) 2012Spring Meeting(招待講演)
    • Place of Presentation
      France, Strasbourg
    • Year and Date
      20120514-18
  • [Presentation] Electrochemical Oxygen Reduction on LaNi^<0.6>Fe^<0.4>O^<3-δ> Film Electrode2012

    • Author(s)
      R.A.Budiman, S.Hashimoto, K.Amezawa,T.Kawada
    • Organizer
      221st Electrochemical Society Meeting
    • Place of Presentation
      USA, Seattle
    • Year and Date
      20120506-10
  • [Presentation] (La,Sr)(Co,Fe)O^<3-δ>cathode under SOFC operation2012

    • Author(s)
      T.Kawada, S.Hashimoto, K.Amezawa
    • Organizer
      221st Electrochemical Society Meeting
    • Place of Presentation
      USA, Seattle
    • Year and Date
      20120506-10
  • [Presentation] Direct Evaluation of Oxygen Chemical Potential Gradient in a Porous SOFC Cathode by in-situ micro XAS2012

    • Author(s)
      Y.Fujimaki, H.Watanabe, Y.Kimura, K.Amezawa, Y.Terada, K.Yashiro, T.Nakamura, S.Hashimoto, T.Kawada
    • Organizer
      The 3rd Symposium of the Research Center for Sustainable Science & Engineering
    • Place of Presentation
      Sendai
    • Year and Date
      2012-12-17
  • [Presentation] 高度解析技術を用いた固体イオニクスデバイス・材料のその場評価2012

    • Author(s)
      雨澤浩史
    • Organizer
      第12回東北大学多元物質科学研究所研究発表会
    • Place of Presentation
      仙台
    • Year and Date
      2012-12-10
  • [Presentation] 高温制御雰囲気下でのin situX線吸収分光測定2012

    • Author(s)
      雨澤浩史,八代圭司,中村崇司
    • Organizer
      平成24年度新エネルギー材料・デバイスプロジェクトグループ研究会
    • Place of Presentation
      福岡
    • Year and Date
      2012-10-30
  • [Presentation] X線吸収分光法を利用した固体酸化物形燃料電池(SOFC)電極反応のその場評価2012

    • Author(s)
      雨澤浩史
    • Organizer
      第48回学際領域セミナーその場観察手法の電気化学デバイスへの適用(招待講演)
    • Place of Presentation
      東京
    • Year and Date
      2012-09-05
  • [Presentation] The Correlationship between Oxygen Nonstoichiometry and other Material Natures in La^<0.6>Sr^<0.4>Co^<1-y>FeyO^<3-δ> (y=0,0.2,0.4,0.5,0.6,0.8,1)Cathode2012

    • Author(s)
      Shin-ichi Hashimoto, Koji Amezawa, 他11名
    • Organizer
      International Union of Materials Research Society- International Conference in Asia 2012 (IUMRS-ICA)
    • Place of Presentation
      Korea, Busan
    • Year and Date
      2012-08-27
  • [Presentation] 放射光を利用した高温作動型燃料電池のその場計測2012

    • Author(s)
      雨澤浩史
    • Organizer
      九州シンクロトロン光研究センター・東北大学多元物質科学研究所合同シンポジウム
    • Place of Presentation
      仙台
    • Year and Date
      2012-07-30
  • [Presentation] その場マイクロXAS測定による固体酸化物形燃料電池用多孔質電極における酸素ポテンシャル分布評価2012

    • Author(s)
      藤巻義信,渡邉秀貴,木村勇太,寺田靖子,橋本真一,雨澤浩史,川田達也
    • Organizer
      九州シンクロトロン光研究センター・東北大学多元物質科学研究所合同シンポジウム
    • Place of Presentation
      仙台
    • Year and Date
      2012-07-30
  • [Presentation] SOFCの材料化学と今後の将来展望2012

    • Author(s)
      雨澤浩史
    • Organizer
      第61回マテリアルズ・テーラリング研究会(招待講演)
    • Place of Presentation
      東京
    • Year and Date
      2012-04-21
  • [Presentation] In-situマイクロXAS測定によるSOFC多孔質カソードにおける酸素ポテンシャル分布の直接評価(優秀ポスター賞受賞)2012

    • Author(s)
      藤巻義信,雨澤浩史, 他5名
    • Organizer
      電気化学会第79回大会
    • Place of Presentation
      浜松
    • Year and Date
      2012-03-29
  • [Presentation] Cation transport in LSCF cathode under SOFC operating conditions2012

    • Author(s)
      呉美瑛,雨澤浩史, 他3名
    • Organizer
      電気化学会第79回大会
    • Place of Presentation
      浜松
    • Year and Date
      2012-03-29
  • [Presentation] in situマイクロXAS法を用いたSOFC空気極/電解質界面における酸素ポテンシャル分布評価2011

    • Author(s)
      雨澤浩史, 他9名
    • Organizer
      電気化学会第78回大会
    • Place of Presentation
      横浜国大
    • Year and Date
      20110329-31
  • [Presentation] In-situ Evaluation of Oxygen Chemical, Potential in an SOFC Cathode2011

    • Author(s)
      Y.Fujimaki, K.Amezawa, 他3名
    • Organizer
      The 2nd International Symposium of Environmental Leader
    • Place of Presentation
      Ho Chi Minh, Vietnam
    • Year and Date
      2011-12-15
  • [Presentation] その場XAFS測定を用いたSOFC多孔質カソードにおける酸素ポテンシャル評価2011

    • Author(s)
      藤巻義信,雨澤浩史, 他4名
    • Organizer
      第20回SOFC研究発表会
    • Place of Presentation
      東京
    • Year and Date
      2011-12-12
  • [Presentation] 固体酸化物形燃料電池のその場計測技術(招待講演)2011

    • Author(s)
      雨澤浩史
    • Organizer
      第21回格子欠陥フォーラム
    • Place of Presentation
      立山
    • Year and Date
      2011-09-20
  • [Presentation] Thermal and chemical lattice change of La^<0.6>Sr^<0.4>Co^<1-y>FeyO^<3-δ>2011

    • Author(s)
      S.Hashimoto, K.Amezawa, 他7名
    • Organizer
      62nd Annual Meeting of the InernationalSociety of Electrochemistry
    • Place of Presentation
      Niigata
    • Year and Date
      2011-09-13
  • [Presentation] Chemicalstabilities of La^<0.6>Sr^<0.4>Co^<0.2>Fe^<0.8>O^<3-δ> as an SOFC cathode2011

    • Author(s)
      M.Oh, K.Amezawa, 他3名
    • Organizer
      62nd Annual Meeting of the Inernational Society of Electrochemistry
    • Place of Presentation
      Niigata
    • Year and Date
      2011-09-13
  • [Presentation] Oxygen Chemical Potential Profile of SOFC Cathode by in-situ Depth Resolved XAS Measurement2011

    • Author(s)
      T.Ina, K.Amezawa, 他6名
    • Organizer
      62nd Annual Meeting of the Inernational Society of Electrochemistry
    • Place of Presentation
      Niigata
    • Year and Date
      2011-09-13
  • [Presentation] XAFSだからわかるイオニクスの不思議(招待講演)2011

    • Author(s)
      雨澤浩史
    • Organizer
      第7回固体イオニクスセミナー
    • Place of Presentation
      氷見
    • Year and Date
      2011-09-06
  • [Presentation] Investigation on SOFC Cathodic reaction by using time-resolved in-situ X-ray absorption spectroscopy2011

    • Author(s)
      K.Amezawa, 他7名
    • Organizer
      18th International Conference on Solid State Ionics
    • Place of Presentation
      Warsaw, Poland
    • Year and Date
      2011-07-05
  • [Presentation] その場X線吸収分光法を用いた遷移金属酸化物の高温・制御雰囲気下における電子・局所構造評価(招待講演)2011

    • Author(s)
      雨澤浩史
    • Organizer
      固体化学の新しい指針を探る研究会第68回定例研究会
    • Place of Presentation
      東工大
    • Year and Date
      2011-06-27
  • [Presentation] Material Stability and Cation Transport of La^<0.6>Sr^<0.4>Co^<0.2>Fe^<0.8>O^<3-δ> in SOFC Cathode Conditions2011

    • Author(s)
      M.Oh, K.Amezawa, 他2名
    • Organizer
      12th International Symposium on Solid Oxide Fuel Cells
    • Place of Presentation
      Montreal, Canada
    • Year and Date
      2011-05-02
  • [Presentation] Electronic and Local Structures of Nd_2NiO^<4+δ> Epitaxial Thin Films Investigated by Depth-Resolved InSitu XAS2011

    • Author(s)
      K.Amezawa, 他7名
    • Organizer
      2011 MRS Spring Meeting & Exhibition
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2011-04-27
  • [Presentation] 高速時間分解その場XAS測定を用いたSOFCカソード反応の解析2010

    • Author(s)
      雨澤浩史, 他7名
    • Organizer
      第36回固体イオニクス討論会
    • Place of Presentation
      仙台
    • Year and Date
      2010-11-25
  • [Presentation] 酸素分圧勾配下のLa^<0.6>Sr^<0.4>Co^<0.2>Fe^<0.8>O^<3-δ>におけるカチオン輸送2010

    • Author(s)
      呉美瑛,雨澤浩史, 他2名
    • Organizer
      第36回固体イオニクス討論会
    • Place of Presentation
      仙台
    • Year and Date
      2010-11-24
  • [Presentation] X線吸収分光法を用いた固体酸化物形燃料電池における電極反応のその場測定(依頼講演)2010

    • Author(s)
      雨澤浩史, 他10名
    • Organizer
      平成22年度化学系学協会東北大会
    • Place of Presentation
      岩手大
    • Year and Date
      2010-09-25
  • [Presentation] 固体酸化物形燃料電池(SOFC)の電極反応(招待講演)2010

    • Author(s)
      雨澤浩史
    • Organizer
      2010年秋季第71回応用物理学会学術講演会
    • Place of Presentation
      長崎大
    • Year and Date
      2010-09-16
  • [Presentation] その場X線吸収分光法を用いたイオン導電性材料の局所・電子構造解析(招待講演)2010

    • Author(s)
      雨澤浩史, 他11名
    • Organizer
      資源・素材2010
    • Place of Presentation
      九州大
    • Year and Date
      2010-09-13
  • [Presentation] Material stability of La^<0.6>Sr^<0.4>Co^<0.2>Fe^<0.8>O^<3-δ> under SOFC operating conditions2010

    • Author(s)
      M.Y.Oh, K.Amezawa, 他2名
    • Organizer
      Asian SOFC Symposium
    • Place of Presentation
      Kyoto
    • Year and Date
      2010-09-06
  • [Remarks]

    • URL

      http://www.tagen.tohoku.ac.jp/labo/amezawa/research-j.html

URL: 

Published: 2014-08-29   Modified: 2015-01-06  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi