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Investigation of gas phase photocatalysis on nanostructured semiconductor surfaces and its application toward artificial photosynthesis

Research Project

Project/Area Number 17K18886
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Electrical and electronic engineering and related fields
Research InstitutionKeio University

Principal Investigator

Noda Kei  慶應義塾大学, 理工学部(矢上), 准教授 (30372569)

Project Period (FY) 2017-06-30 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords半導体ナノ構造 / 光触媒 / 人工光合成 / 半導体物性 / ナノ材料 / エネルギー変換
Outline of Final Research Achievements

Gas phase photocatalysis over nanostructured semiconductor surfaces and its application toward artificial photosynthesis such as hydrogen production and CO2 photoreduction were investigated.
Firstly, Composites of anodized hematite (α-Fe2O3) nanotube (FNT) arrays and Cu2O nanoparticles (CNPs) were fabricated using all-electrochemical processes. Hydrogen production from gas phase photocatalytic decomposition of water/methanol mixture over the composite of FNT and CNP was clearly confirmed under visible light irradiation, suggesting that H2 production observed for FNT/CNP can be attributed to Z-scheme mechanism.
In addition, gas-phase photocatalysis over composites of anodized TiO2 oxide nanotube arrays and CNPs was examined in high vacuum. The observation results indicate that electrodeposited CNPs can work as noble-metal-free co-catalyst for gas phase photocatalysis based on nanostructured oxide semiconductors.

Academic Significance and Societal Importance of the Research Achievements

近年、ワイドギャップ半導体材料を用いた光触媒や光電極による人工光合成の研究開発が世界的規模で急速に進展している。本研究では、それらの材料を活用して、気相光触媒反応場を対象とした人工光合成反応に関する新しい学術的知見を得るとともに、高機能光触媒メンブレンリアクターの実現に向けた有益な成果を得ることができた。これらの成果は太陽エネルギーの有効利用やCO2削減等に寄与し得る、社会的に意義のあるものと言える。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (22 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (18 results) (of which Int'l Joint Research: 6 results,  Invited: 2 results)

  • [Int'l Joint Research] シバジ大学(インド)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] シバジ大学(インド)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Temperature dependence of photoinduced hydrogen production and simultaneous separation in TiO2 nanotubes/palladium bilayer membrane2018

    • Author(s)
      Asai Junki、Noda Kei
    • Journal Title

      Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena

      Volume: 36 Issue: 4

    • DOI

      10.1116/1.5029281

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Photocatalytic decomposition of gaseous methanol over anodized iron oxide nanotube arrays in high vacuum2018

    • Author(s)
      Ohta Takahiro、Masegi Hikaru、Noda Kei
    • Journal Title

      Materials Research Bulletin

      Volume: 99 Pages: 367-376

    • DOI

      10.1016/j.materresbull.2017.11.027

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Cu2O nanoparticles for enhancing gas phase photocatalysis over metal oxide semiconductor nanostructures2020

    • Author(s)
      Masegi Hikaru, Goto Hayato, Shivaji B. Sadale, Noda Kei
    • Organizer
      47th Conference on the Physics & Chemistry of Surfaces & Interfaces (PCSI-47)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 全電気化学手法による酸化鉄/酸化銅ナノ複合体形成と可視光触媒活性評価2020

    • Author(s)
      柵木光、Shivaji B. Sadale、野田啓
    • Organizer
      表面技術協会 第141回講演大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] TiO2ナノ構造体に堆積させるパルス電着Cu2Oナノ粒子の粒径制御2020

    • Author(s)
      五藤隼登、柵木光、野田啓
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Anodized metal oxide nanotube arrays for gas phase photocatalysis and photoinduced high-purity hydrogen production2019

    • Author(s)
      Noda Kei
    • Organizer
      Collaborative Conference on Materials Research (CCMR) 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Gas phase photocatalytic H2 generation over α-Fe2O3 nanotube arrays/Cu2O composite under visible light irradiation2019

    • Author(s)
      Masegi Hikaru, Shivaji B. Sadale, Noda Kei
    • Organizer
      The 7th International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies (EM-NANO 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Cu2O担持したTiO2ナノ構造体における気相メタノール光触媒分解2019

    • Author(s)
      五藤隼登、柵木光、野田啓
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 可視光照射下での酸化鉄ナノチューブアレイ/酸化銅複合体における気相光触媒水素生成2019

    • Author(s)
      柵木光、Shivaji B. Sadale、野田啓
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] アノード酸化半導体ナノ構造における気相光触媒反応分析と高純度水素生成2019

    • Author(s)
      野田啓
    • Organizer
      表面技術協会 第139回講演大会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 電気化学測定によるCu2O薄膜のパルス電着過程の追跡2019

    • Author(s)
      柵木光、宮内勇人、Shivaji B. Sadale、野田 啓
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 化学的剥離によるTiO2ナノチューブアレイとPd膜の二層メンブレンの作製2019

    • Author(s)
      鈴木普仁、浅井潤樹、野田啓
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] Surface potential and hydrophilicity measurements on titanium dioxide before and after ultraviolet irradiation2019

    • Author(s)
      Furukawa Takuya, Noda Kei
    • Organizer
      46th Conference on the Physics & Chemistry of Surfaces & Interfaces (PCSI-46)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] パルス電着法による酸化鉄ナノチューブアレイと酸化銅ナノ粒子との複合体形成2018

    • Author(s)
      柵木光、Shivaji B. Sadale、野田啓
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 紫外光照射前後のTiO2単結晶及び微粒子膜表面における表面電位計測と接触角測定2018

    • Author(s)
      古川拓弥、野田啓
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] Temperature dependence of photoinduced hydrogen production and simultaneous purification in TiO2 nanotubes/palladium bilayer membrane2018

    • Author(s)
      Asai Junki、 Noda Kei
    • Organizer
      45th Conference on the Physics & Chemistry of Surfaces & Interfaces (PCSI-45)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Methanol photocatalytic decomposition over anodized iron oxide nanotube arrays in high vacuum2017

    • Author(s)
      Noda Kei、Ohta Takahiro、Masegi Hikaru
    • Organizer
      European Materials Research Society (E-MRS) 2017 Fall Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 紫外光照射前後のTiO2単結晶及び微粒子膜表面における表面電位計測2017

    • Author(s)
      古川拓弥、野田啓
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] TiO2ナノチューブとPd膜の二層メンブレンにおける光誘起水素生成・分離の温度依存性2017

    • Author(s)
      浅井潤樹、野田啓
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 白金担持酸化鉄ナノ構造体を用いた真空下でのメタノールの気相光触媒分解2017

    • Author(s)
      柵木光、太田貴洋、野田啓
    • Organizer
      第77回マテリアルズ・テーラリング研究会
    • Related Report
      2017 Research-status Report

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Published: 2017-07-21   Modified: 2021-02-19  

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