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高効率CO2還元を目指した金属錯体/半導体複合光触媒の広域可視光応答化

Research Project

Project/Area Number 17J06914
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Energy-related chemistry
Research InstitutionTokyo Institute of Technology

Principal Investigator

村岡 兼通  東京工業大学, 理学院, 特別研究員(DC1)

Project Period (FY) 2017-04-26 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 2019: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2018: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2017: ¥900,000 (Direct Cost: ¥900,000)
Keywords光触媒 / CO2還元 / 人工光合成 / 酸窒化物 / 半導体
Outline of Annual Research Achievements

平成31年度(令和元年度)、二酸化炭素光還元に有効な半導体—錯体複合光触媒の研究において重要な課題のひとつである、広域可視光応答可能な半導体材料であるナノ粒子Ta3N5光触媒の合成検討に精力的に取り組んだ。ナノ粒子Ta3N5光触媒の合成は格子欠陥の低減と光酸化力の向上を目的として、SiO2表面上にナノ粒子Ta2O5が被覆した酸化物前駆体をアンモニア窒化することで行った。一連の結果から、1023 Kのアンモニア窒化して得られたナノ粒子Ta3N5担持SiO2複合体において、Ta3N5に酸化物アニオンがドープされていることを確認した。このナノ粒子Ta3N5は従来のバルク型Ta3N5よりも7倍高い性能を持つことを明らかとし、本成果はChemPhotoChem誌に掲載受理された。今後、ナノ粒子Ta3N5を表面修飾することで、光触媒活性を向上することにより研究がさらに展開していくと考えられる。

Research Progress Status

令和元年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和元年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (6 results)

All 2020 2019 2018 2017

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (3 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Oxygen-doped Ta3N5 nanoparticles for enhanced Z-scheme CO2 reduction with binuclear Ru(II) complex under visible light2019

    • Author(s)
      Kanemichi Muraoka, Junie Jhon M. Vequizo, Ryo Kuriki, Akira Yamakata, Tomoki Uchiyama, Daling Lu, Yoshiharu Uchimoto, Osamu Ishitani, Kazuhiko Maeda
    • Journal Title

      ChemPhotoChem

      Volume: 3 Issue: 10 Pages: 1027-1033

    • DOI

      10.1002/cptc.201900120

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Visible-Light-Driven Z-scheme CO2 Reduction System Using Ta3N5 and a Ru(II) Binuclear Comple2018

    • Author(s)
      Kanemichi Muraoka, Tomoki Uchiyama, Daling Lu, Yoshiharu Uchimoto, Osamu Ishitani, Kazuhiko Maeda
    • Journal Title

      Bull. Chem. Soc. Jpn.

      Volume: 92 Issue: 1 Pages: 124-126

    • DOI

      10.1246/bcsj.20180239

    • NAID

      130007578579

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Solar-driven Z-scheme water splitting using tantalum/nitrogen co-doped rutile titania nanorod as an oxygen evolution photocatalyst2017

    • Author(s)
      A. Nakada, S. Nishioka, J. J. M. Vequizo, K. Muraoka, T. Kanazawa A. Yamakata, S. Nozawa, H. Kumagai, S. Adachi, O. Ishitani, K. Maeda
    • Journal Title

      Journal of Materials Chemistry A

      Volume: . Issue: 23 Pages: 11710-11719

    • DOI

      10.1039/c6ta10541f

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Oxygen-Doped Ta3N5 for Z-scheme CO2 Reduction with a Binuclear Ru(II) Complex Workable under a Wide Range of Visible Light2020

    • Author(s)
      Kanemichi Muraoka
    • Organizer
      Fossil and Renewable Energy 2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Oxygen-doped Ta3N5 modified with a Ru(II) binuclear complex having the ability to reduce CO2 under a wide range of visible light2018

    • Author(s)
      Kanemichi Muraoka
    • Organizer
      The 8th Tokyo Conference on Advanced Catalytic Science and Technology
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Synthesis of Ta3N5 Photocatalysts for Visible Light CO2 Reduction with the Aid of a Ru(II) Binuclear Complex2017

    • Author(s)
      Kanemichi Muraoka
    • Organizer
      9th International Symposium on Nitrides and Related Materials
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research

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Published: 2017-05-25   Modified: 2024-03-26  

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