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Development of new fabrication method for photoelectrodes

Research Project

Project/Area Number 16K06860
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Catalyst/Resource chemical process
Research InstitutionMeiji University

Principal Investigator

Watanabe Tomoaki  明治大学, 理工学部, 専任教授 (30345392)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords光触媒 / 光電極 / 窒化物 / 水素エネルギー / ロールプレス / ロールプレス法 / 水分解光電極 / Ta3N5 / 光触媒シート / 粒子転写法 / アンモノサーマル / アモノサーマル / 圧延 / 電着法 / 酸窒化物 / 低温合成 / 大面積
Outline of Final Research Achievements

In this study, we developed a method of applying photocatalyst powder on a metal substrate and rolling it with a roll press to form a photoelectrode. As a result of the method, we succeeded in fabricating a photoelectrode with a width of 20 mm and a length of 50 mm, and confirmed that the photoelectrode characteristics are equivalent to those of a smaller one. As an example, using titanium metal as a metal substrate, LaNbON2 as a photocatalyst material is laminated by an electrodeposition method, and then the roll-pressed photoelectrode at room temperature is about 100uA/cm2 in simulated sunlight (AM1.5G). The photocurrent was observed. This is a value comparable with other methods, and the superiority of photoelectrode fabrication by the roll pressing method, which is a very simple and low-cost method, was shown.

Academic Significance and Societal Importance of the Research Achievements

太陽光と水分解光触媒を持ちいた水素製造プロセスは、次世代エネルギー源として期待されている。しかし依然として太陽エネルギー変換効率が低く、かつ大面積の光触媒電極もしくはシートを製造するのは種々の困難を伴う。本研究では、量産プロセスに応用可能な技術であるロールプレス法を用いて光電極を作成し、その性能が従来の高度プロセスによるものと同等であることを示すことに成功した。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (14 results)

All 2019 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results) Presentation (5 results) (of which Int'l Joint Research: 4 results,  Invited: 5 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Int'l Joint Research] チュラロンコン大学(タイ)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Oxysulfide photocatalyst for visible-light-driven overall water splitting2019

    • Author(s)
      Qian Wang, Mamiko Nakabayashi, Takashi Hisatomi, Song Sun, Seiji Akiyama, Zheng Wang, Zhenhua Pan, Xiong Xiao, Tomoaki Watanabe, Taro Yamada, Naoya Shibata, Tsuyoshi Takata and Kazunari Domen
    • Journal Title

      Nature Materials

      Volume: 18 Pages: 827-832

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of the addition of surfactants on the direct fabrication of a CuFeO2/Fe photocathode by hydrothermal method2019

    • Author(s)
      Mizuki Ito, Tomoaki Watanabe
    • Journal Title

      J. Ceram. Soc. Jap.

      Volume: 127 Pages: 893-898

    • NAID

      130007755056

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] One-dimensional Anisotropic Electronic States in Needle-shaped La5Ti2CuS5O7 Single Crystals Grown in Molten Salt in Bridgman Furnace2019

    • Author(s)
      Iwase Motoki、Nakabayashi Mamiko、Shibata Naoya、Matsuzaki Hiroyuki、Kobayashi Hisayoshi、Yamada Taro、Domen Kazunari、Watanabe Tomoaki
    • Journal Title

      Crystal Growth & Design

      Volume: 19 Issue: 4 Pages: 2419-2427

    • DOI

      10.1021/acs.cgd.9b00091

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Low-temperature Synthesis of BaTaO2N via the Flux Method Using NaNH22017

    • Author(s)
      Yuki Setsuda, Yuki Maruyama, Chihiro Izawa, and Tomoaki Watanabe
    • Journal Title

      Chem. Lett.

      Volume: 48 Issue: 7 Pages: 987-989

    • DOI

      10.1246/cl.170267

    • NAID

      130005709467

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Low-temperature synthesis of BaTaO<sub>2</sub>N by an ammonothermal method2017

    • Author(s)
      Tatsuro TOSHIMA, Kazuhisa KISHIDA, Yuki MARUYAMA and Tomoaki WATANABE
    • Journal Title

      Journal of the Ceramic Society of Japan

      Volume: 125 Issue: 8 Pages: 643-647

    • DOI

      10.2109/jcersj2.17041

    • NAID

      130005878434

    • ISSN
      1348-6535, 1882-0743
    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Molten salt flux synthesis of La5Ti2CuS5O7 towards elongated single crystallites2017

    • Author(s)
      Motoki Iwase, Mamiko Nakabayashi, Naoya Shibata, Chihiro Izawa, Masao Katayama, Taro Yamada, Yasunobu Inoue, Kazunari Domen, and Tomoaki Watanabe
    • Journal Title

      Jpn. J. Appl. Phys.

      Volume: 56 Issue: 5 Pages: 055503-055503

    • DOI

      10.7567/jjap.56.055503

    • NAID

      210000147730

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Direct Fabrication of a CuFeO<sub>2</sub>/Fe Photocathode for Solar Hydrogen Production by Hydrothermal Method2017

    • Author(s)
      Mizuki Ito, Chihiro Izawa, and Tomoaki Watanabe*
    • Journal Title

      Chemistry Letters

      Volume: 46 Issue: 6 Pages: 814-816

    • DOI

      10.1246/cl.170074

    • NAID

      130005689366

    • ISSN
      0366-7022, 1348-0715
    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] Recent advance in nitride photocatalyst for new hydrogen energy source2017

    • Author(s)
      Tomoaki Watanabe
    • Organizer
      International Congress on Pure & Applied Chemistry (ICPAC2018)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Recent advance in nitride photocatalyst materials2017

    • Author(s)
      Tomoaki Watanabe
    • Organizer
      International Union of Materials Research Societies/International Conference in Asia(IUMRS-ICA2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Recent advance in nitride photoelectrode for new hydrogen energy source2017

    • Author(s)
      Tomoaki Watanabe
    • Organizer
      The International Conference on Materials for Advanced Technologies(ICMAT-2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Recent advance in nitride photocatalyst materials2016

    • Author(s)
      Tomoaki Watanabe
    • Organizer
      INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY : FUTURE CHELLENGES AND SOLUTIONS (STFCS - 2016) August
    • Place of Presentation
      マイソール(インド)
    • Year and Date
      2016-08-08
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] アンモノサーマル法による酸窒化物光触媒の2016

    • Author(s)
      渡邉友亮
    • Organizer
      セラミックス協会第29回秋季シンポジウム
    • Place of Presentation
      広島大学
    • Related Report
      2016 Research-status Report
    • Invited
  • [Patent(Industrial Property Rights)] 光触媒材の製造方法2016

    • Inventor(s)
      渡邉友亮,岩瀬元希,堂免一成,久富隆史,徳富弘優
    • Industrial Property Rights Holder
      渡邉友亮,岩瀬元希,堂免一成,久富隆史,徳富弘優
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2016-115497
    • Filing Date
      2016-06-09
    • Related Report
      2016 Research-status Report
    • Overseas

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Published: 2016-04-21   Modified: 2022-03-04  

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