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Research for high-efficiency plasmon conversion using 3D-photonic nanographene and application to photo-catalysis

Research Project

Project/Area Number 19K22226
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 36:Inorganic materials chemistry, energy-related chemistry, and related fields
Research InstitutionUniversity of Tsukuba

Principal Investigator

Fujita Jun-ichi  筑波大学, 数理物質系, 教授 (10361320)

Co-Investigator(Kenkyū-buntansha) 伊藤 良一  筑波大学, 数理物質系, 准教授 (90700170)
Project Period (FY) 2019-06-28 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsプラズモン共鳴 / 3次元グラフェン / 2光子吸収 / 水素発生 / 光触媒反応 / 水の分解 / 酸素発生 / 触媒反応 / TiO2 / 光触媒 / 再輻射 / 酸化チタン / プラズモン / 2格子吸収 / 3D-Graphene / Plasmon / Photonic crystal / ウィスパリング・ギャラリーモード
Outline of Research at the Start

グラフェン上を進行するプラズモン分散は赤外領域にピークを持つ。つまり、通常の2次元グラフェン面での光吸収とその触媒機能は赤外領域で極大となるが、伝搬の分散ピークから外れた可視領域ではプラズモン励起も減衰し、担持されたTiO2の光触媒機能は可視光領域は低くなってしまう。本研究では、3次元フォトニックグラフェン構造を創出し、減衰しているエネルギー分散スペクトル領域でも、長周期構造によるカップリングでプラズモン生成効率を上げる。さらに2次ナノ構造でプラズモン集中させることで、近赤外や可視領域での2光子吸収効率を上げ、飛躍的な光触媒機能の改善に挑戦する。

Outline of Final Research Achievements

Titanium oxide and metal-encapsulated three-dimensional graphene function as an effective photocatalyst for hydrogen production, but their activation energy requires photon energy of 3.2 eV (385 nm) or higher.
In this study, we investigated the catalytic reaction mechanism of metal-encapsulated three-dimensional graphene, and used two-photon absorption in a strong re-radiation field (proximity field) realized by a zone plate-type two-dimensional photonic structure. It was demonstrated that highly efficient hydrogen generation can occur even in the infrared region light where no photocatalytic reaction occurs.

Academic Significance and Societal Importance of the Research Achievements

本研究では、ゾーンプレート型プラズモン収束回路を用いることで、ゾーン中央からの強い再輻射場の中で2光子吸収光触媒反応を実現する技術を実証した。これまで光触媒反応に利用できないとされていた赤外領域光であっても、水素発生のための光源としての利用が可能となり、これからの持続型水素社会を実現する上での重要な要素技術が開発できた。また、プラズモン制御光学の新しい分野を開拓するとともに、関連する物理計測、化学反応解析など多くの学術分野で幅広く利用され得る科学基盤技術になると期待される。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (7 results)

All 2021 2020 2019 Other

All Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (2 results) (of which Int'l Joint Research: 1 results) Remarks (2 results)

  • [Journal Article] Catalytic activity of graphene-covered non-noble metals governed by proton penetration in electrochemical hydrogen evolution reaction2021

    • Author(s)
      Hu Kailong、Ohto Tatsuhiko、Nagata Yuki、Wakisaka Mitsuru、Aoki Yoshitaka、Fujita Jun-ichi、Ito Yoshikazu
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 203-203

    • DOI

      10.1038/s41467-020-20503-7

    • NAID

      120006952196

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Inhibiting Surface Diffusion to Synthesize 3D Bicontinuous Nanoporous N-Doped Carbon for Boosting Oxygen Reduction Reaction in Flexible All-Solid-State Al-Air Batteries2021

    • Author(s)
      Kailong Hu,Tingting Yu,Yanyi Zhang,Xiaorong Lin,Yilu Zhao,Guoqiang Xie,Xingjun Liu,Xi Lin,Jun-ichi Fujita,Hua-Jun Qiu,Yoshikazu Ito
    • Journal Title

      Advanced Functional Materials

      Volume: 23 Issue: 38 Pages: 2103632-2103632

    • DOI

      10.1002/adfm.202103632

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effect of Graphene Encapsulation of NiMo Alloys on Oxygen Evolution Reaction2019

    • Author(s)
      Jeong Samuel、Hu Kailong、Ohto Tatsuhiko、Nagata Yuki、Masuda Hideki、Fujita Jun-ichi、Ito Yoshikazu
    • Journal Title

      ACS Catalysis

      Volume: 10 Issue: 1 Pages: 792-799

    • DOI

      10.1021/acscatal.9b04134

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 二次元フォトニック構造による高効率プラズモン変換と光触媒応用2020

    • Author(s)
      付 威、山下 大之、藤森 利彦、小野木 伯薫、胡 凱龍、赤田 圭史、伊藤 良一、藤田 淳一
    • Organizer
      2021年第68回応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Graphene Encapsulation Effects on NiMo Alloy in Oxygen Evolution Reaction2019

    • Author(s)
      Samuel Jeong, Kailong Hu, Tatsuhiko Ohto, Yuki Nagata, Hideki Masuda, Jun-ichi Fujita, Yoshikazu Ito
    • Organizer
      MATERIALS RESEARCHMEETING 2019, Yokohama SYMPOSIA
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] 藤田研究室 研究内容 論文

    • URL

      http://www.bk.tsukuba.ac.jp/~nanofab/Research_index.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] 藤田研 論文紹介、研究内容

    • URL

      http://www.bk.tsukuba.ac.jp/~nanofab/index.html

    • Related Report
      2020 Research-status Report

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Published: 2019-07-04   Modified: 2023-01-30  

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