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Development of hierarchical structure of 2D nanosheets and its application based on charge transfer between the nanosheets

Research Project

Project/Area Number 16K14428
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Structural/Functional materials
Research InstitutionNational Institute for Materials Science

Principal Investigator

Sakai Nobuyuki  国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, 主任研究員 (70431822)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywordsナノシート / 超薄膜 / レイヤーバイレイヤー法 / ヘテロ積層 / 光電荷分離 / 光触媒 / 光誘起超親水化特性 / エネルギー貯蔵 / 酸化チタン / 還元型酸化グラフェン / 硫化モリブデン / ヘテロ界面 / 電荷分離 / 蓄電 / 酸化マンガン / コバルト / ドーピング / 蓄電池 / ナノ材料 / 超格子 / 太陽光発電 / 超親水性
Outline of Final Research Achievements

The present research has developed hierarchical structure composed of various types of 2D nanosheets and achieved enhancement of various properties based on efficient charge transfer at the interface between different types of nanosheets. Titania nanosheets hetero-assembled with reduced graphene oxide have shown improved efficiency of photoinduced charge separation and enhancement of photoinduced hydrophilic conversion property. Superlattice-like composites composed of alternately stacked MnO2/graphene have achieved improved capacity and ultralong cyclability as energy storage devices. Restacked titania nanosheets modified with monolayer of MoS2 have shown a remarkably high photocatalytic activity for hydrogen generation.

Academic Significance and Societal Importance of the Research Achievements

本研究では、異なる電子構造を持つナノシートのヘテロ積層により、光電荷分離効率の向上や分離した電荷の光誘起親水化反応への利用を実現できた。この成果は、高効率な光触媒や太陽電池、発光デバイスなどへの応用につながるものと期待できる。また、このヘテロ構造は簡便で安価でありながら、ナノレベルで構造を設計できるレイヤーバイレイヤー法により作製でき、材料創製の観点からも意義のある成果が得られた。

Report

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

    (21 results)

All 2019 2018 2017 2016

All Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results) Presentation (12 results) (of which Int'l Joint Research: 7 results,  Invited: 3 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Monolayer Attachment of Metallic MoS2 on Restacked Titania Nanosheets for Efficient Photocatalytic Hydrogen Generation2018

    • Author(s)
      Leanddas Nurdiwijayanto, Jinghua Wu, Nobuyuki Sakai, Renzhi Ma, Yasuo Ebina, Takayoshi Sasaki
    • Journal Title

      ACS Applied Energy Materials

      Volume: 1 Issue: 12 Pages: 6912-6918

    • DOI

      10.1021/acsaem.8b01319

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spontaneous Direct Band Gap, High Hole Mobility, and Huge Exciton Energy in Atomic-Thin TiO2 Nanosheet2018

    • Author(s)
      Wei Zhou, Naoto Umezawa, Renzhi Ma, Nobuyuki Sakai, Yasuo Ebina, Koki Sano, Mingjie Liu, Yasuhiro Ishida, Takuzo Aida, Takayoshi Sasaki
    • Journal Title

      Chemistry of Materials

      Volume: 30 Issue: 18 Pages: 6449-6457

    • DOI

      10.1021/acs.chemmater.8b02792

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Synthesis and Substitution Chemistry of Redox-Active Manganese/Cobalt Oxide Nanosheets2018

    • Author(s)
      Sakai Nobuyuki、Fukuda Katsutoshi、Ma Renzhi、Sasaki Takayoshi
    • Journal Title

      Chemistry of Materials

      Volume: 30 Issue: 5 Pages: 1517-1523

    • DOI

      10.1021/acs.chemmater.7b04068

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Unilamellar Metallic MoS2/Graphene Superlattice for Efficient Sodium Storage and Hydrogen Evolution2018

    • Author(s)
      Xiong Pan、Ma Renzhi、Sakai Nobuyuki、Nurdiwijayanto Leanddas、Sasaki Takayoshi
    • Journal Title

      ACS Energy Letters

      Volume: 3 Issue: 4 Pages: 997-1005

    • DOI

      10.1021/acsenergylett.8b00110

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Genuine Unilamellar Metal Oxide Nanosheets Confined in a Superlattice-like Structure for Superior Energy Storage2018

    • Author(s)
      Xiong Pan、Ma Renzhi、Sakai Nobuyuki、Sasaki Takayoshi
    • Journal Title

      ACS Nano

      Volume: 12 Issue: 2 Pages: 1768-1777

    • DOI

      10.1021/acsnano.7b08522

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Insight into the structural and electronic nature of chemically exfoliated molybdenum disulfide nanosheets in aqueous dispersions2018

    • Author(s)
      Nurdiwijayanto Leanddas、Ma Renzhi、Sakai Nobuyuki、Sasaki Takayoshi
    • Journal Title

      Dalton Transactions

      Volume: 47 Issue: 9 Pages: 3014-3021

    • DOI

      10.1039/c7dt03706f

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Stability and Nature of Chemically Exfoliated MoS2 in Aqueous Suspensions2017

    • Author(s)
      Nurdiwijayanto Leanddas、Ma Renzhi、Sakai Nobuyuki、Sasaki Takayoshi
    • Journal Title

      Inorganic Chemistry

      Volume: 56 Issue: 14 Pages: 7620-7623

    • DOI

      10.1021/acs.inorgchem.7b01354

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Modulation of Photochemical Activity of Titania Nanosheets via Heteroassembly with Reduced Graphene Oxide. Enhancement of Photoinduced Hydrophilic Conversion Properties2016

    • Author(s)
      N. Sakai, K. Kamanaka, and T. Sasaki
    • Journal Title

      JOURNAL OF PHYSICAL CHEMISTRY C

      Volume: 120 Issue: 42 Pages: 23944-23950

    • DOI

      10.1021/acs.jpcc.6b06842

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] マンガン/コバルト比を変えた酸化物ナノシートの合成と置換化学2019

    • Author(s)
      坂井伸行、佐々木高義
    • Organizer
      日本化学会第99春季年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Synthesis and Electrochemical Property of Manganese/Cobalt Oxide Nanosheets2019

    • Author(s)
      Nobuyuki Sakai、Takayoshi Sasaki
    • Organizer
      MANA International Symposium 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Influence of Cobalt Doping on the Crystal Structure, Electronic Structure, and Electrochemical Property of Mn1-xCoxO2 Nanosheets2019

    • Author(s)
      Nobuyuki Sakai、Takayoshi Sasaki
    • Organizer
      The 2nd International Symposium on Chemistry of Nanomaterials
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 異種ナノシートのヘテロ接合による光誘起親水化特性の向上2017

    • Author(s)
      坂井伸行、鎌仲渓、海老名保男、佐々木高義
    • Organizer
      電気化学会第84回大会
    • Place of Presentation
      首都大学東京(東京都・八王子市)
    • Year and Date
      2017-03-27
    • Related Report
      2016 Research-status Report
  • [Presentation] Modulation of Photoinduced Hydrophilic Conversion Property via Heteroassembly of Various 2D Nanosheets2017

    • Author(s)
      Kei Kamanaka, Nobuyuki Sakai, Yasuo Ebina, Takayoshi Sasaki
    • Organizer
      International Conference on Nano-Materials for Energy and Life
    • Place of Presentation
      Wangchan Valley(タイ)
    • Year and Date
      2017-02-06
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] ヘテロ接合した酸化チタンナノシート表面における色素の光触媒分解2017

    • Author(s)
      坂井伸行、鎌仲渓、海老名保男、佐々木高義
    • Organizer
      2017年電気化学秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Hetero-Nanostructured Films of 2D Nanosheets and Their Properties Based on Photoinduced Charge Transfer2017

    • Author(s)
      Sakai Nobuyuki、Sasaki Takayoshi
    • Organizer
      International Workshop on Advanced Nanoscience and Nanomaterials 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 酸化グラフェンと酸化物ナノシートのヘテロ接合とその光機能2017

    • Author(s)
      坂井伸行、佐々木高義
    • Organizer
      グラフェン・酸化グラフェン合同シンポジウム
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 異種ナノシートとのヘテロ接合による酸化チタンナノシートの光誘起超親水化活性の制御2016

    • Author(s)
      鎌仲渓、坂井伸行、海老名保男、佐々木高義
    • Organizer
      第32回日本イオン交換研究発表会
    • Place of Presentation
      関西大学(大阪府・吹田市)
    • Year and Date
      2016-10-27
    • Related Report
      2016 Research-status Report
  • [Presentation] Design of titania nanosheet films through integration with various nanosheets to enhance photoinduced hydrophilic conversion property2016

    • Author(s)
      Kei Kamanaka, Nobuyuki Sakai, Yasuo Ebina, Takayoshi Sasaki
    • Organizer
      Tsukuba Global Science Week 2016
    • Place of Presentation
      筑波大学(茨城県・つくば市)
    • Year and Date
      2016-09-17
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Heteroassembly of titania nanosheet with various 2D oxides to enhance photoinduced hydrophilic conversion property2016

    • Author(s)
      Kei Kamanaka, Nobuyuki Sakai, Takayoshi Sasaki
    • Organizer
      6th International Workshop on Layered Materials
    • Place of Presentation
      Kutna Hora(チェコ)
    • Year and Date
      2016-09-05
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Photoinduced superhydrophilicity of titania nanosheets and improvement of their activity via heteroassembly with other 2D nanosheets2016

    • Author(s)
      Nobuyuki Sakai, Kei Kamanaka, Yasuo Ebina, Takayoshi Sasaki
    • Organizer
      NCKU - MANA Workshop on 2D Materials
    • Place of Presentation
      NIMS(茨城県・つくば市)
    • Year and Date
      2016-08-05
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Patent(Industrial Property Rights)] 二次電池用負極電極、その製造方法およびそれを用いた二次電池2018

    • Inventor(s)
      佐々木高義、馬仁志、ションパン、坂井伸行
    • Industrial Property Rights Holder
      国立研究開発法人物質・材料研究機構
    • Industrial Property Rights Type
      特許
    • Filing Date
      2018
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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