The hydrogen evolution reaction in alkaline solution: from theory, single crystal models, to practical electrocatalysts
Date
2018
Authors
Zheng, Y.
Jiao, Y.
Qiao, S.
Vasileff, A.
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Journal article
Citation
Angewandte Chemie International Edition, 2018; 57(26):7568-7579
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Yao Zheng, Yan Jiao, Anthony Vasileff, Shi‐Zhang Qiao
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Abstract
The hydrogen evolution reaction (HER) is a fundamental process in electrocatalysis and plays an important role in energy conversion for the development of hydrogen-based energy sources. However, the considerably slow rate of the HER in alkaline conditions has hindered advances in water splitting techniques for high-purity hydrogen production. Differing from well documented acidic HER, the mechanistic aspects of alkaline HER are yet to be settled. Herein, we present a critical appraisal of alkaline HER electrocatalysis, with a special emphasis on the connection between fundamental surface electrochemistry on single crystal models and the derived molecular design principle for real-world electrocatalysts. By presenting some typical examples across theoretical calculations, surface characterization, and electrochemical experiments, we try to address some key ongoing debates to deliver a better understanding of alkaline HER at the atomic level.
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© 2018 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim