Nanocatalyst Design for Long-Term Operation of Proton/Anion Exchange Membrane Water Electrolysis

Title
Nanocatalyst Design for Long-Term Operation of Proton/Anion Exchange Membrane Water Electrolysis
Authors
오형석진하늘Bibi Ruqia김희진최상일이광열Yeji Park
Keywords
Oxygen evolution reaction (OER); Hydrogen evolution reaction; Long­term stability; Water electrolysis
Issue Date
2020-12
Publisher
Advanced Energy Materials
Citation
VOL 143, NO 12-3716
Abstract
Long-term catalyst stability is essential for the commercialization of hydrogen generation by electrocatalytic water-splitting. Current research, however, mainly focuses on improving electrode activity of the hydrogen evolution reaction (HER) at the cathode and oxygen evolution reaction (OER) at the anode of electrolyzers, although the maintenance of long-term performance poses a bigger challenge. To shift the focus of research to the issue of catalyst stability, this review describes the mechanism of HER/OER catalyst degradation based on catalyst dissolution and agglomeration, and summarizes representative catalyst designs for achieving stable catalysts in long-term water electrolysis operation. Additionally, various strategies toward the improvement of HER/OER stability are evaluated, and potential effective guidelines for the design of stable catalysts are suggested.
URI
http://pubs.kist.re.kr/handle/201004/72609
ISSN
1614-6832
Appears in Collections:
KIST Publication > Article
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