High Resolution Electrochemical Mapping of Hydrogen Evolution Reaction on Transition Metal Dichalcogenide Nanosheets

Journal: Angewandte Chemie International Edition

Published: 2019-11-28

DOI: 10.1002/anie.201912863

Affiliations: 11

Authors: 15

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Research Highlight

Mapping the water-splitting power of catalysts

© Cherdchanok Treevanchai/Getty

© Cherdchanok Treevanchai/Getty

The solar-powered production of carbon-free fuels could be made more efficient by using a high-resolution technique to map the activity of key electrocatalysts.

Electricity generated from renewable energy sources can be stored by using it to make hydrogen fuel through the electrochemical water splitting. Materials based on molybdenum disulphide are some of the most promising electrocatalysts for hydrogen production, and researchers are trying to maximize their performance.

Now, a team at Kanazawa University in Japan has analysed the performance of molybdenum disulphide nanosheets as electrocatalysts for the hydrogen evolution reaction.

Using a microscopy technique that high-resolution, the team compared the catalytic activity of different parts of the nanosheet, such as the edge and the flat surface, with nanoscale resolution.

Engineering molybdenum disulphide nanosheets to incorporate more of the identified areas of high catalytic activity could enhance the performance of hydrogen production catalysts, the researchers say.

Supported content

  1. Angewandte Chemie International Edition 59, 3601–3608 (2020). doi: 10.1002/anie.201912863
Institutions Share
WPI Nano Life Science Institute (NanoLSI), KU, Japan 0.30
Department of Physics, TMU, Japan 0.13
Graduate School of Environmental Studies, Tohoku University, Japan 0.13
Department of Materials Science and Engineering, JHU, United States of America (USA) 0.10
WPI Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Japan 0.10
Institute of Applied Physics, University of Tsukuba, Japan 0.07
School of Environmental Science and Engineering, Kochi University of Technology, Japan 0.07
Department of Applied Chemistry, Tohoku University, Japan 0.07
Department of Medicine (DOM), ICL, United Kingdom (UK) 0.03
Precursory Research for Embryonic Science and Technology (PRESTO), JST, Japan 0
Core Research for Evolutional Science and Technology (CREST), JST, Japan 0