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Vacancy-engineered catalysts for water electrolysis

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Abstract

The development of electrochemical energy conversion and storage technologies is pivotal to the full-fledged utilization of renewable energy sources. The successful commercial application of water electrolysis to produce hydrogen gas, in particular, requires highly active electrocatalysts that can operate for prolonged periods. However, the high activity and high durability of electrocatalysts are often mutually exclusive. Recent studies have demonstrated that vacancy engineering might effectively modulate the electronic structures of catalysts, which can lead to high catalytic activity. Furthermore, it has been shown that vacancies are closely related to catalyst stability under operational conditions. To understand the benefits of vacancies in the catalyst structures, we discuss the recent advances in the development of vacancy-engineered catalysts for water electrolysis. In addition, we discuss the present limitations in this nascent field and provide directions for valuable future research.

Graphical abstract: Vacancy-engineered catalysts for water electrolysis

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Article information


Submitted
27 Nov 2019
Accepted
04 Jan 2020
First published
07 Jan 2020

CrystEngComm, 2020, Advance Article
Article type
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Vacancy-engineered catalysts for water electrolysis

S. Choi, Y. Park, H. Yang, H. Jin, G. M. Tomboc and K. Lee, CrystEngComm, 2020, Advance Article , DOI: 10.1039/C9CE01883B

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