CLS

Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology

東京工業大学
科学技術創成研究院
化学生命科学研究所

LAST UPDATE 2021/06/08

  • 研究者氏名
    Researcher Name

    ハフィス・プラタマ・レンドラ・グラハ                   Hafis Pratama Rendra GRAHA
    特任助教 Specially Appointed Assistant Professor
  • 所属
    Professional Affiliation

    東京工業大学科学技術創成研究院化学生命科学研究所
    Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology

    分子機能化学領域部門
    Molecular functions Division
  • 研究キーワード
    Research Keywords


    Anion Exchange Membranes
    Proton Exchange Membranes
    Water Electrolyzers
    Fuel Cells
研究テーマ
Research Subject

Development of Ion Exchange Membranes for Electrochemical Devices

研究の背景 Background

Hydrogen is a promising energy carrier between renewable energy sources and the end user to realize sustainable society. Currently, utilization of electrochemical devices for hydrogen-based energy-storage and energy-generation is very promising. Water electrolyzers convert electricity into hydrogen while fuel cells do vice versa. One of the keys to obtain excellent water electrolyzers and fuel cells is high performance and durable ion exchange membranes. Both of proton exchange membranes (PEM) and anion exchange membranes (AEM) are necessary since the electrochemical devices can be operated in acid or alkaline mode. 

研究の目標 Outcome

A series of novel anion exchange membranes (AEMs) with ether-free structure has been developed. The thin AEMs can be easily prepared using highly soluble precursor polymer. Current research focus is developing durable proton exchange membranes (PEMs) with ether-free structure and perfluroalkyl pendant to achieve high durability and high conductivity even under low relative humidity.

研究図Research Figure

Fig.1. The concept of novel durable anion exchange membranes with convertible structure

Fig.2. Example of AEMs with convertible structure. P-PAPP as precursor polymer can be converted into PAPP (target polymer) in solid state.

Fig.3. Durability assessment of PAPP membrane: (a) alkaline durability test (b) oxidative durability test

文献 / Publications

Chem. Commun., 2018,54, 10820-10823