Okazaki Hiroyuki 岡崎宏之

Researcher Number	90637886
Other IDs	https://orcid.org/0000-0002-4936-6869
Affiliation (Current)	2025: 国立研究開発法人量子科学技術研究開発機構, 高崎量子技術基盤研究所先端機能材料研究部, 主任研究員
Affiliation (based on the past Project Information) *help	2024: 国立研究開発法人量子科学技術研究開発機構, 高崎量子技術基盤研究所先端機能材料研究部, 主任研究員 2020 – 2023: 国立研究開発法人量子科学技術研究開発機構, 高崎量子応用研究所先端機能材料研究部, 主任研究員 2018 – 2020: 国立研究開発法人量子科学技術研究開発機構, 高崎量子応用研究所先端機能材料研究部, 博士研究員(任常)
Review Section/Research Field	Principal Investigator Basic Section 26020:Inorganic materials and properties-related Except Principal Investigator Basic Section 31020:Earth resource engineering, Energy sciences-related / Medium-sized Section 31:Nuclear engineering, earth resources engineering, energy engineering, and related fields / Basic Section 21060:Electron device and electronic equipment-related / Basic Section 31010:Nuclear engineering-related
Keywords	Principal Investigator 固体高分子形燃料電池(PEFC) / 荷電粒子ビーム / 炭素触媒 / 電極触媒 / 固体高分子形燃料電池 Except Principal Investigator 固体高分子形燃料電池(PEFC) / 原子空孔 / 荷電粒子ビーム / 電極触媒 / 固体高分子形燃料電池（PEFC） … More / エネルギー機能材料 / ナノ構造 / 臨界電流特性 / 結晶欠陥 / イオン照射 / 超伝導薄膜 / Nドープカーボン触媒 / N-C触媒 / Pt/C触媒 / 固体高分子型燃料電池(PEFC) / 酸素還元反応(ORR) / 固体高分子形燃料電池 / 放射線 / 強誘電体ゲート電界効果トランジスタ / ガンマ線照射 / パワーデバイス / 電界効果トランジスタ / 強誘電体 / ダイヤモンド / 局所構造 / 界面電子状態 / 炭素担持Pt触媒 / 担体効果 / 電極触媒荷 / 原子空孔導入 / 炭素担体 / Pt触媒 / 界面構造 / 酸素還元反応（ORR） Less

結合状態操作とドーピングによる局在電子状態を制御した高活性炭素触媒の創製Principal Investigator
- Principal Investigator
  
  岡崎宏之
- Project Period (FY)
  2022 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 26020:Inorganic materials and properties-related
- Research Institution
  National Institutes for Quantum Science and Technology
Development of next-generation high-performance superconducting wires utilizing the defect control produced by ion irradiation
- Principal Investigator
  
  尾崎壽紀
- Project Period (FY)
  2022 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 31020:Earth resource engineering, Energy sciences-related
- Research Institution
  Kwansei Gakuin University
Creation of Fuel-Cell Electrocatalysts by Irradiation-Induced Atomic Vacancies: Performance Control Based on Clarification of Dynamic Behavior
- Principal Investigator
  
  八巻徹也
- Project Period (FY)
  2021 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 31:Nuclear engineering, earth resources engineering, energy engineering, and related fields
- Research Institution
  National Institutes for Quantum Science and Technology
Study of low-loss diamond power FET with operation in harsh environments
- Principal Investigator
  
  Kawe Takeshi
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 21060:Electron device and electronic equipment-related
- Research Institution
  Kanazawa University
Single-atom catalysts on atomic vacancies created by charged-particle irradiation: the mechanism of high activity and guiding principle for catalyst design
- Principal Investigator
  
  YAMAKI Tetsuya
- Project Period (FY)
  2018 – 2020
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 31010:Nuclear engineering-related
- Research Institution
  National Institutes for Quantum Science and Technology

All 2024 2023 2022 2021 2020

All Journal Article Presentation Patent

[Journal Article] Effect of ion irradiation after platinum nanoparticles deposition onto glassy carbon substrates on microstructural evolution and oxygen reduction reaction activities2024
- Author(s)
  Taguchi Tomitsugu、Yamamoto Shunya、Koshikawa Hiroshi、Okazaki Hiroyuki、Idesaki Akira、Yamaki Tetsuya
- Journal Title
  
  Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
  
  Volume: 549 Pages: 165286-165286
- DOI
  10.1016/j.nimb.2024.165286
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23K04387, KAKENHI-PROJECT-21H04669
[Journal Article] 380-keV Ar+-irradiation effects on optical phonons in graphite studied with transient reflection measurement2023
- Author(s)
  Kimata Tetsuya、Kato Taichi、Takagi Itsuki、Konno Yuma、Okazaki Hiroyuki、Yamamoto Shunya、Yamaki Tetsuya、Nakamura Kazutaka G.
- Journal Title
  
  Journal of Applied Physics
  
  Volume: 134 Issue: 13 Pages: 135306-135306
- DOI
  10.1063/5.0161215
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K18904, KAKENHI-PROJECT-21H04669
[Journal Article] Weakened Oxygen Adsorbing the Pt-O Bond of the Pt Catalyst Induced by Vacancy Introduction into Carbon Support2023
- Author(s)
  Okazaki Hiroyuki、Idesaki Akira、Koshikawa Hiroshi、Matsumura Daiju、Ikeda Takashi、Yamamoto Shunya、Yamaki Tetsuya
- Journal Title
  
  The Journal of Physical Chemistry C
  
  Volume: 127 Issue: 49 Pages: 23628-23633
- DOI
  10.1021/acs.jpcc.3c04117
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21H04669
[Journal Article] Platinum nanoparticles prepared by ion implantation exhibit high durability for fuel cell applications2023
- Author(s)
  Tetsuya Kimata、Taichi Kato、Itsuki Takagi、Yuma Konno、Hiroyuki Okazaki、Shunya Yamamoto、Tetsuya Yamaki、Kazutaka G. Nakamura
- Journal Title
  
  APL Materials
  
  Volume: 11 Issue: 6 Pages: 061115-061115
- DOI
  10.1063/5.0148263
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21H04669
[Journal Article] Radiation resistance of diamond FeFET with inorganic ferroelectric gate2022
- Author(s)
  T. Kawae, H. Okazaki, T. Yamaki
- Journal Title
  
  QST Takasaki Annual Report 2021
  
  Volume: QST-M-39 Pages: 43-43
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20K04595
[Journal Article] Changes in electronic structure of carbon supports for Pt catalysts induced by vacancy formation due to Ar+ irradiation2020
- Author(s)
  Okazaki Hiroyuki、Kakitani Kenta、Kimata Tetsuya、Idesaki Akira、Koshikawa Hiroshi、Matsumura Daiju、Yamamoto Shunya、Yamaki Tetsuya
- Journal Title
  
  The Journal of Chemical Physics
  
  Volume: 152 Issue: 12 Pages: 124708-124708
- DOI
  10.1063/1.5144568
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18H01923
[Patent] 電極触媒、燃料電池用電極、および燃料電池2024
- Inventor(s)
  岡崎宏之、山本春也、越川博、出崎亮、八巻徹也
- Industrial Property Rights Holder
  量子科学技術研究開発機構
- Industrial Property Rights Type
  特許
- Filing Date
  2024
- Data Source
  KAKENHI-PROJECT-21H04669
[Presentation] 350 keV Arイオン照射したGdBa2Cu3Oy薄膜の超伝導特性2024
- Author(s)
  尾崎壽紀、森川陽向、岡崎宏之、越川博、山本春也、八巻徹也、佐伯盛久、末吉哲郎、坂根仁
- Organizer
  公益社団法人　日本金属学会2024 年春期講演（第174 回）大会
- Data Source
  KAKENHI-PROJECT-23K23288
[Presentation] Change of the oxygen adsorption states of Pt nanoparticles on carbon support by the ion irradiation2023
- Author(s)
  Hiroyuki Okazaki、Takashi Ikeda、Akira Idesaki、Hiroshi Koshikawa、Daiju Matsumura、Shunya Yamamoto、Tetsuya Yamaki
- Organizer
  MRM2023/IUMRS-ICA2023
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04669
[Presentation] Au ion irradiation of GdBa2Cu3Oy coated conductors: superconducting properties and induced defects2023
- Author(s)
  T. Ozaki, H. Okazaki, H. Koshikawa, S. Yamamoto, T. Yamaki, M. Saeki, T. Sueyoshi, S. Semboshi, A. Yabuuchi, and H. Sakane
- Organizer
  Irradiation Effects on HTS for Fusion (IREF23, 1tst International Workshop)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K23288
[Presentation] Coherent optical phonons in HOPG modified by Ar-ion irradiation2023
- Author(s)
  Tetsuya Kimata、Taichi Kato、Yuma Konno、Hiroyuki Okazaki、Shunya Yamamoto、Tetsuya Yamami、Kazutaka G. Nakamura
- Organizer
  33rd International conference on diamond and carbon materials
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04669
[Presentation] Superconducting Properties in GdBa2Cu3Oy Coated Conductors Modified by Ion Irradiation Followed by Oxygen Annealing2023
- Author(s)
  Toshinori Ozaki, Hiroyuki Okazaki, Hiroshi Koshikawa, Shunya Yamamoto, Tetsuya Yamaki, Tetsuro Sueyoshi, Hitoshi Sakane
- Organizer
  Materials Research Meeting (MRM) 2023/ International Union of Materials Research Societies - International Conference in Asia (IUMRS-ICA) 2023
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K23288
[Presentation] Flux pinning performance of FeSe0.5Te0.5 thin films modified by low-energy ion irradiation2023
- Author(s)
  Toshinori Ozaki, Saku Yamashita, Tomoyuki Yoshida, Hiroyuki Okazaki, Syunya Yamamoto, Hiroshi Koshikawa, Tetsuya Yamaki, Qiang Li
- Organizer
  Cryogenic Engineering Conference - International Cryogenic Materials Conference (CEC-ICMC) 2023
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K23288
[Presentation] Prominent Performance of FeSe0.5Te0.5 Thin Films Produced by Low-energy Ion Irradiation2023
- Author(s)
  Toshinori Ozaki, Saku Yamashita, Tomoyuki Yoshida, Hiroyuki Okazaki, Syunya Yamamoto, Hiroshi Koshikawa, Tetsuya Yamaki, Qiang Li
- Organizer
  8th International Conference on Superconductivity and Magnetism 2023 (ICSM2023)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K23288
[Presentation] Effect of post-annealing in oxygen atmosphere on GdBa2Cu3Oy superconducting films irradiated with 10 MeV Au-ions2023
- Author(s)
  T. Ozaki, H. Okazaki, H. Koshikawa, S. Yamamoto, T. Yamaki, T. Sueyoshi, H. Sakane
- Organizer
  21st International Conference on radiation effects in insulators (REI-21)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K23288
[Presentation] X-ray Raman spectroscopy study of ion beam irradiated glassy carbon for in situ observation of light element based catalysts2023
- Author(s)
  Daiju Matsumura、Hiroyuki Okazaki、Akira Idesaki、Kenji Ishii、Tetsuya Yamaki
- Organizer
  21st International Conference on Radiation Effects in Insulators
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04669
[Presentation] 酸素アニールがAuイオン照射GdBa2Cu3Oy線材の超伝導特性に与える影響2023
- Author(s)
  尾崎壽紀，岡崎宏之，越川博, 山本春也，八巻徹也，末吉哲郎，坂根仁
- Organizer
  令和5年春季　第70回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-23K23288
[Presentation] Effect of post-annealing in oxygen atmosphere on GdBa2Cu3Oy superconducting films irradiated with 10 MeV Au-ions2023
- Author(s)
  Toshinori Ozaki、Hiroyuki Okazaki、Hiroshi Koshikawa、Shunya Yamamoto、Tetsuya Yamaki、Tetsuro Sueyoshi、Hitoshi Sakane
- Organizer
  21st International Conference on Radiation Effects in Insulators
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04669
[Presentation] Effect of ion irradiation after platinum deposition onto carbon substrates on oxygen reduction reaction activity of electrocatalysts2023
- Author(s)
  Tomitsugu Taguchi、Shunya Yamamoto、Hiroyuki Okazaki、Hiroshi Koshikawa、Akira Idesaki、Tetsuya Yamaki
- Organizer
  21st International Conference on Radiation Effects in Insulators
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04669
[Presentation] 酸素アニール温度が300 keV Heイオン照射GdBa2Cu3Oy線材の超伝導特性に与える影響2023
- Author(s)
  尾崎壽紀，野村謙太，岡崎宏之，越川博, 山本春也，八巻徹也，末吉哲郎，坂根仁
- Organizer
  令和5年秋季　第84回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-23K23288
[Presentation] 190keVプロトン照射が鉄カルコゲナイドFeSe0.5Te0.5薄膜の超伝導特性に与える影響2022
- Author(s)
  山下朔、柏原卓弥、掛谷一弘、岡崎宏之、越川博、山本春也、八巻徹也、尾崎壽紀
- Organizer
  低温工学・超電導学会関西支部第21回低温工学・超伝導若手合同講演会
- Data Source
  KAKENHI-PROJECT-23K23288
[Presentation] FeSe0.5Te0.5超伝導薄膜への190keVプロトン照射効果2022
- Author(s)
  山下朔、柏原卓弥、掛谷一弘、岡崎宏之、越川博、山本春也、八巻徹也、尾崎壽紀
- Organizer
  令和4年秋季　第83回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-23K23288
[Presentation] 強誘電体キャパシタに対する高強度ガンマ線照射耐性の検証2022
- Author(s)
  高橋克弥、水戸守輝、山河智哉、松本翼、徳田規夫、岡崎宏之、八巻徹也、川江健
- Organizer
  第6回有機・無機エレクトロニクスシンポジウム
- Data Source
  KAKENHI-PROJECT-20K04595
[Presentation] CSD法によるLaNiO3薄膜の自己配向成長と成膜条件の相関2021
- Author(s)
  芦原凛太郎、河原正美、岡崎宏之、山本春也、川江健
- Organizer
  第82回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-20K04595

1. YAMAKI Tetsuya (10354937)

# of Collaborated Projects: 2 results

# of Collaborated Products: 7 results
2. 出崎亮 (10370355)

# of Collaborated Projects: 2 results

# of Collaborated Products: 5 results
3. 松村大樹 (30425566)

# of Collaborated Projects: 2 results

# of Collaborated Products: 4 results
4. 田口富嗣 (50354832)

# of Collaborated Projects: 2 results

# of Collaborated Products: 2 results
5. 池田隆司 (60370350)

# of Collaborated Projects: 2 results

# of Collaborated Products: 2 results
6. Kawe Takeshi (30401897)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
7. 寺井隆幸 (90175472)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. 中村一隆 (20302979)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
9. 村岡祐治 (10323635)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. 尾崎壽紀 (20756663)

# of Collaborated Projects: 1 results

# of Collaborated Products: 10 results
11. 石神龍哉 (10359242)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. 山本春也

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Okazaki Hiroyuki 岡崎 宏之

Research Projects

Research Products

Co-Researchers

結合状態操作とドーピングによる局在電子状態を制御した高活性炭素触媒の創製Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of next-generation high-performance superconducting wires utilizing the defect control produced by ion irradiation

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Creation of Fuel-Cell Electrocatalysts by Irradiation-Induced Atomic Vacancies: Performance Control Based on Clarification of Dynamic Behavior

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Study of low-loss diamond power FET with operation in harsh environments

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Single-atom catalysts on atomic vacancies created by charged-particle irradiation: the mechanism of high activity and guiding principle for catalyst design

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Effect of ion irradiation after platinum nanoparticles deposition onto glassy carbon substrates on microstructural evolution and oxygen reduction reaction activities2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] 380-keV Ar+-irradiation effects on optical phonons in graphite studied with transient reflection measurement2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Weakened Oxygen Adsorbing the Pt-O Bond of the Pt Catalyst Induced by Vacancy Introduction into Carbon Support2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Platinum nanoparticles prepared by ion implantation exhibit high durability for fuel cell applications2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Radiation resistance of diamond FeFET with inorganic ferroelectric gate2022

Author(s)

Journal Title

Data Source

[Journal Article] Changes in electronic structure of carbon supports for Pt catalysts induced by vacancy formation due to Ar+ irradiation2020

Author(s)

Journal Title

DOI

Data Source

[Patent] 電極触媒、燃料電池用電極、および燃料電池2024

Inventor(s)

Industrial Property Rights Holder

Industrial Property Rights Type

Filing Date

Data Source

[Presentation] 350 keV Arイオン照射したGdBa2Cu3Oy薄膜の超伝導特性2024

Author(s)

Organizer

Data Source

[Presentation] Change of the oxygen adsorption states of Pt nanoparticles on carbon support by the ion irradiation2023

Author(s)

Organizer

Data Source

[Presentation] Au ion irradiation of GdBa2Cu3Oy coated conductors: superconducting properties and induced defects2023

Author(s)

Organizer

Okazaki Hiroyuki 岡崎宏之