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

Chemical State Visualization of FeOx Catalyst Particles by In Situ Full-Field Imaging XAFS

Research Project

Project/Area Number 16K17863
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Physical chemistry
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Ishiguro Nozomu  国立研究開発法人理化学研究所, 放射光科学総合研究センター, 特別研究員 (20752455)

Research Collaborator TADA Mizuki  名古屋大学, 物質科学国際研究センター, 教授
MATSUI Hirosuke  名古屋大学, 物質科学国際研究センター, 助教
URUGA Tomoya  高輝度光科学研究センター, 副部門長
TAKAHASHI Yukio  大阪大学, 大学院工学研究科, 准教授
SEKIZAWA Oki  高輝度光科学研究センター, 研究員
NITTA Kiyofumi  高輝度光科学研究センター, 研究員
SUZUKI Yoya  名古屋大学, 大学院理学研究科, 大学院生
HIROSE Makoto  大阪大学, 大学院工学系究科, 大学院生
Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords固体触媒 / 結像顕微XAFS / タイコグラフィーXAFS / 化学状態可視化 / 結像顕微XAFS法 / タイコグラフィーXAFS法 / 化学状態イメージング / 樹状型酸化鉄 / in situ構造解析 / 触媒化学 / 結像顕微CT-XAFS / 構造・化学状態可視化 / 鉄酸化物触媒
Outline of Final Research Achievements

Visualization of chemical states of heterogeneous solid catalysts was investigated by imaging XAFS techniques to reveal relationships between their non-uniform structure and activity. Two topics as in blow were reported here.
(1) Fe chemical state of dendrite FeOx and FeCrOx were visualized by full-field imaging XAFS with 50 nm spatial-resolution, and phase-transition tendency in FeOx and FeCrOx particles during redox reaction were discussed.
(2)Ce chemical state of Ce2Zr2Ox (x=7-8) particles were successfully visualized by ptychographic-XAFS with less than 50 nm spatial resolution. Several types of local correlations found between the Ce density and Ce valence images indicated the existence of several oxidation behaviors in the oxygen storage process in the Ce2Zr2Ox particles.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • Research Products

    (38 results)

All 2018 2017 Other

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (30 results) (of which Int'l Joint Research: 13 results,  Invited: 2 results) Remarks (1 results)

  • [Journal Article] Visualization of Heterogeneous Oxygen Storage Behavior in Platinum-Supported Cerium-Zirconium Oxide Three-Way Catalyst Particles by Hard X-ray Spectro-Ptychography2018

    • Author(s)
      Hirose Makoto、Ishiguro Nozomu、Shimomura Kei、Burdet Nicolas、Matsui Hirosuke、Tada Mizuki、Takahashi Yukio
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 57 Issue: 6 Pages: 1474-1479

    • DOI

      10.1002/anie.201710798

    • NAID

      120006473548

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structural investigations of La0.6Sr0.4FeO3-δ under reducing conditions: kinetic and thermodynamic limitations for phase transformations and iron exsolution phenomena2018

    • Author(s)
      Gotsch Thomas、Schlicker Lukas、Bekheet Maged F.、Doran Andrew、Grunbacher Matthias、Praty Corsin、Tada Mizuki、Matsui Hirosuke、Ishiguro Nozomu、Gurlo Aleksander、Klotzer Bernhard、Penner Simon
    • Journal Title

      RSC Advances

      Volume: 8 Issue: 6 Pages: 3120-3131

    • DOI

      10.1039/c7ra12309d

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Structural Kinetics of Cathode Events on Polymer Electrolyte Fuel Cell Catalysts Studied by Operando Time-Resolved XAFS2018

    • Author(s)
      Ishiguro Nozomu、Tada Mizuki
    • Journal Title

      Catalysis Letters

      Volume: 印刷中 Issue: 6 Pages: 1597-1609

    • DOI

      10.1007/s10562-018-2383-7

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Operando 3D Visualization of Migration and Degradation of a Platinum Cathode Catalyst in a Polymer Electrolyte Fuel Cell2017

    • Author(s)
      Matsui Hirosuke、Ishiguro Nozomu、Uruga Tomoya、Sekizawa Oki、Higashi Kotaro、Maejima Naoyuki、Tada Mizuki
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 56 Issue: 32 Pages: 9371-9375

    • DOI

      10.1002/anie.201703940

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In-situ X-ray nano-CT System for Polymer Electrolyte Fuel Cells under Operating Conditions2017

    • Author(s)
      Sekizawa O、Uruga T、Ishiguro N、Matsui H、Higashi K、Sakata T、Iwasawa Y、Tada M
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 849 Pages: 012022-012022

    • DOI

      10.1088/1742-6596/849/1/012022

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Size Regulation and Stability Enhancement of Pt Nanoparticle Catalyst via Polypyrrole Functionalization of Carbon-Nanotube-Supported Pt Tetranuclear Complex2017

    • Author(s)
      S. Muratsugu, S. Miyamoto, K. Sakamoto, K. Ichihashi, C. K. Kim, N. Ishiguro, and M. Tada
    • Journal Title

      Langmuir

      Volume: 33 Issue: 39 Pages: 10271-10282

    • DOI

      10.1021/acs.langmuir.7b02114

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 走査型顕微XAFS法を用いた固体粒子のイメージング2017

    • Author(s)
      石黒志、松井公佑、唯美津木
    • Journal Title

      触媒

      Volume: 59(2) Pages: 69-75

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] 結像顕微XAFSによる樹状型FeOx粒子の酸化還元サイクルおけるFe化学状態の可視化2018

    • Author(s)
      石黒 志, 松井 公佑, 鈴木 陽也, 関澤 央輝, 新田 清文, 寺田 靖子, 宇留賀 朋哉, 唯 美津木
    • Organizer
      第31回日本放射光学会年会・放射光科学合同シンポジウム
    • Related Report
      2017 Annual Research Report
  • [Presentation] タイコグラフィXAFSによるCe2Zr2Ox粒子内の酸素拡散分布の可視化2018

    • Author(s)
      石黒 志, 広瀬 真, 下村 啓, Nicolas BURDET, 松井公佑, 高橋幸生, 唯美津木
    • Organizer
      日本化学会第98春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Visualization of Ce Chemical States and Oxygen Diffusion in Ceria-Zirconia Particles by X-ray Spectro-Ptychography2018

    • Author(s)
      Nozomu Ishiguro, Makoto Hirose, Kei Shimomura, Nicolas Burdet, Hirosuke Matsui, Yukio Takahashi, Mizuki Tada
    • Organizer
      18th International Symposium on Relations between Homogeneous and Heterogeneous Catalysts (ISHHC18)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] XAFS Imaging of Ce2Zr2Ox Exhausting Catalyst Systems2018

    • Author(s)
      Nozomu Ishiguro, Makoto Hirose, Hirosuke Matsui, Mizuki Tada
    • Organizer
      International Symposium on Advancement and Prospect of Catalysis Science & Technology
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nanoscale Chemical Imaging of Three-Way Catalyst Pt/Ce2Zr2Ox Particles by Ptychographic-XAFS2018

    • Author(s)
      Makoto Hirose, Nozomu Ishiguro, Kei Shimomura, Hirosuke Matsui, Mizuki Tada, Yukio Takahashi
    • Organizer
      The 14th International Conference on X-ray Microscopy (XRM2018)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] オペランドCT-XAFS法による固体高分子形燃料電池の触媒劣化・溶出様式の3次元可視化2018

    • Author(s)
      松井公佑、石黒志、宇留賀朋哉、関澤央輝、唯美津木
    • Organizer
      第31回日本放射光学会年会・放射光科学合同シンポジウム
    • Related Report
      2017 Annual Research Report
  • [Presentation] オペランド時間分解XAFS法によるPEFC実発電下におけるPtカソード触媒の酸化反応の速度論解析2018

    • Author(s)
      小澤沙記、松井公佑、石黒志、宇留賀朋哉、関澤央輝、坂田智裕、東晃太朗、唯美津木
    • Organizer
      第31回日本放射光学会年会・放射光科学合同シンポジウム
    • Related Report
      2017 Annual Research Report
  • [Presentation] 3D-multiple elemental visualization of PEFC Pt3Co/C cathode catalyst during accelerated degradation test2018

    • Author(s)
      Y. Tan, H. Matsui, N. Ishiguro, T. Uruga, O. Sekizawa, N. Maejima, Mizuki Tada
    • Organizer
      第31回日本放射光学会年会・放射光科学合同シンポジウム
    • Related Report
      2017 Annual Research Report
  • [Presentation] EXAFS-CT法による燃料電池触媒のその場局所構造観察2018

    • Author(s)
      前島尚行、松井公佑、石黒志、Tan YuanYuan、小澤沙記、坂田智裕、東晃太朗、関澤央輝、宇留賀朋哉、唯 美津木
    • Organizer
      第31回日本放射光学会年会・放射光科学合同シンポジウム
    • Related Report
      2017 Annual Research Report
  • [Presentation] 硬X線スペクトロタイコグラフィによる酸素吸蔵・放出材料の三次元価数識別イメージング2018

    • Author(s)
      広瀬真、石黒志、下村啓、松井公佑、唯美津木、高橋幸生
    • Organizer
      第31回日本放射光学会年会・放射光科学合同シンポジウム
    • Related Report
      2017 Annual Research Report
  • [Presentation] Visualization of anisotropic crystalline phase variations inside Cr-supported FeOx dendrite crystals for oxygen storage process2018

    • Author(s)
      H. Matsui, Y. Suzuki, N. Ishiguro, M. Tada
    • Organizer
      日本化学会第98春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] カソードのガス交換と電位操作によるPEFC Pt/C, Pt3Co/Cカソード触媒の酸化過程の構造速度論解析2018

    • Author(s)
      小澤沙記、松井公佑、田口将寛、石黒志、宇留賀朋哉、関澤央輝、坂田智裕、東晃太朗、唯美津木
    • Organizer
      日本化学会第98春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Rh, Crを担持したミクロンサイズのセリア結晶粒子の合成とレドックス特性2018

    • Author(s)
      若松昂平、松井公佑、石黒志、邨次智、唯美津木
    • Organizer
      日本化学会第98春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Operando 3D-visualization of local chemical composition in PEFC Pt3Co/C cathode catalyst during accelerated degradation test2018

    • Author(s)
      Y. Tan, H. Matsui, N. Ishiguro, N. Maejima, T. Uruga, O. Sekizawa, M. Tada
    • Organizer
      日本化学会第98春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 3D-visualization of distribution and redox property of a PEFC Pt/C cathode catalyst during degradation process by imaging XAFS2018

    • Author(s)
      N. Maejima, H. Matsui, N. Ishiguro, Y. Tan, T. Uruga, T. Sakata, K. Higashi, O. Sekizawa, M. Tada
    • Organizer
      日本化学会第98春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Operando Observation of Reaction Distribution in a Composite Positive Electrode for All-Solid-State Lithium-Ion Batteries by Using CT-XAFS2018

    • Author(s)
      Y. Kimura, M. Fakkao, T. Nakamura, T. Okumura, O. Sekizawa, K. Nitta, N. Ishiguro, T. Uruga, M. Tada, Y. Uchimoto, K. Amezawa
    • Organizer
      第16回アジア固体イオニクス会議
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CT-XAFSを用いたバルク型全固体リチウムイオン電池用合剤電極内の反応分布のオペランド評価2018

    • Author(s)
      木村 勇太,Fakkao Mahunnop,中村 崇司,石黒 志,関澤 央輝,新田 清文,宇留賀 朋哉,奥村 豊旗,唯 美津木,内本 喜晴,雨澤 浩史
    • Organizer
      電気化学会第85回大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 結像顕微XAFS法による樹状型FeOx粒子の化学状態イメージングの検討2017

    • Author(s)
      石黒 志・松井公佑・鈴木陽也・関澤 央輝・新田清文・寺田靖子・宇留 賀 朋哉・唯 美津木
    • Organizer
      第30回日本放射光学会年会・放射光科学合同シンポジウム
    • Place of Presentation
      神戸芸術センター
    • Year and Date
      2017-01-07
    • Related Report
      2016 Research-status Report
  • [Presentation] Structural Kinetics Study of Redox Processes of Pt/C and Pt3Co/C Cathode Electrocatalysts in a Polymer Electrolyte Fuel Cell during an Accelerated Durability Test by In Situ Time-Resolved XAFS2017

    • Author(s)
      Nozomu Ishiguro, Sutasinee Kityakarn, Oki Sekizawa, Tomoya Uruga, Hirosuke Matsui, Kensaku Nagasawa, Toshihiko Yokoyama, Mizuki Tada
    • Organizer
      253rd ACS National Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ADT Processes of Pt/C and Pt3Co/C PEFC Cathode Electrocatalysts Studied by Operando Time-resolved Quick-XAFS2017

    • Author(s)
      Nozomu Ishiguro, Sutasinee Kityakarn, Oki Sekizawa, Tomoya Uruga, Hirosuke Matsui, Kensaku Nagasawa, Toshihiko Yokoyama, Mizuki Tada
    • Organizer
      International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] In situ Time-resolved XAFS Study for ADT Processes of Pt/C and Pt3Co/C PEFC Cathode Electrocatalysts2017

    • Author(s)
      Nozomu Ishiguro, Sutasinee Kityakarn, Oki Sekizawa, Tomoya Uruga, Hirosuke Matsui, Kensaku Nagasawa, Toshihiko Yokoyama, Mizuki Tada
    • Organizer
      第16回日韓触媒シンポジウム及び第3回北海道大学触媒科学研究所国際シンポジウム
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Oxidation of Pt and Pt3Co electrocatalysts at PEFC cathode studied by operando time-resolved QXAFS2017

    • Author(s)
      H. Matsui, S. Ozawa, N. Ishiguro, O. Sekizawa, T. Uruga, M. Tada
    • Organizer
      The 8th International Symposium on Surface Science
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 3D-visualization of PEFC Pt cathode catalyst in MEA during ADT cycles by operando CT-XANES technique2017

    • Author(s)
      H. Matsui, N. Ishiguro, T. Uruga, O. Sekizawa, M. Tada
    • Organizer
      International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Visualization of Heterogeneity of Solid Catalysts2017

    • Author(s)
      M. Tada, H. Matsui, N. Ishiguro
    • Organizer
      International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nanoscale Chemical Imaging of Oxygen Storage and Release Particles by Hard X-ray Spectro-Ptychography2017

    • Author(s)
      M. Hirose, N. Ishiguro, K. Shimomura, N. Burdet, H. Matsui, M. Tada, Y. Takahashi
    • Organizer
      International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Kinetics and reaction mechanism of oxidation processes on Pt/C and Pt3Co/C cathode catalysts studied by operando time-resolved QXAFS2017

    • Author(s)
      S. Ozawa, H. Matsui, N. Ishiguro, T. Uruga, O. Sekizawa, T. Sakata, K. Higashi, Mizuki Tada
    • Organizer
      International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 3D-Visualization of Pt and Co Segregations in Pt3Co Cathode Catalyst Layer by Operando XAFS-CT Imaging2017

    • Author(s)
      Y. Tan, H. Matsui, N. Ishiguro, N. Maejima, T. Uruga, O. Sekizawa, M. Tada
    • Organizer
      International Symposium on Novel Energy Nanomaterials, Catalysts and Surfaces for Future Earth
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] オペランド 3 次元イメージング XAFS を用いたバルク型全固体リチウムイオン電池用合材電極内の反応分布評価2017

    • Author(s)
      木村勇太、Mahunnop Fakkao、大崎静夏、高野彬、 中村崇司、伊奈稔哲、石黒志、関澤央輝、宇留賀朋哉、 奥村豊旗、唯美津木、内本喜晴
    • Organizer
      第43回固体イオニクス討論会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Operando 3-dimensional imaging XAFS of composite electrode for all-solid-state lithium-ion batteries2017

    • Author(s)
      Mahunnop Fakkao, Akira Takano, Yuta Kimura, Takashi Nakamura, Toyoki Okumura, Toshiaki Ina, Nozomu Ishiguro, Tomoya Uraga, Mizuki Tada, Yoshiharu Uchimoto, Koji Amezawa
    • Organizer
      第58回電池討論会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 結像顕微XAFS法による樹状型FeOx結晶粒子の化学状態イメージング2017

    • Author(s)
      石黒 志・松井公佑・鈴木陽也・関澤 央輝・新田清文・寺田靖子・宇留 賀 朋哉・唯 美津木
    • Organizer
      日本化学会 第97春季年会
    • Place of Presentation
      慶應義塾大学 日吉キャンパス
    • Related Report
      2016 Research-status Report
  • [Remarks] タイコグラフィ-X線吸収微細構造法の開発 -酸素吸蔵・放出材料の酸素拡散分布を可視化-

    • URL

      http://www.riken.jp/pr/press/2018/20180112_2/

    • Related Report
      2017 Annual Research Report

URL: 

Published: 2016-04-21   Modified: 2019-03-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi