Presentation Information
[1E01【会誌賞】]Local Analysis of Catalytic Active Sites by Scanning Electrochemical Cell Microscopy
*Kaito Hirata1,2, Yasufumi Takahashi2,3 (1. Department of Physical Science and Engineering, Nagoya Instiute of Technology, 2. Department of Electronics, Graduate School of Engineering, Nagoya University, 3. WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University)
To realize a carbon-neutral society, catalysts that convert water and CO2 into valuable chemicals like hydrogen are actively studied. Electrochemical technique allows direct evaluation of catalytic activity, yet it provides only averaged information, making it hard to obtain effects from edges, grain boundaries, or defects. Scanning electrochemical cell microscopy (SECCM) is a promising candidate, which enables nanoscale electrochemical imaging by forming a local electrochemical cell using a glass nanopipette. Here, we introduce SECCM basic principle and their application to 2D materials and photocatalysts. This measurement technique is a significantly powerful tool to directly visualize local reactivity and support advanced catalyst design.