Roadmap and Direction toward High-Performance MoS2 Hydrogen Evolution Catalysts

MoS2 intrinsically show Pt-like hydrogen evolution reaction (HER) performance. Pristine MoS2 displayed low HER activity, which was caused by low quantities of catalytic sites and unsatisfactory conductivity. Then, phase engineering and S vacancy were developed as effective strategies to elevate the...

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Veröffentlicht in:ACS nano Jg. 15; H. 7; S. 11014 - 11039
1. Verfasser: Cao, Yang
Format: Journal Article
Sprache:Englisch
Veröffentlicht: American Chemical Society 27.07.2021
Schlagworte:
2D catalyst
HER
Pt-like activity
MoS2
mechanism
characterization
electrocatalysis
structure
ISSN:1936-0851, 1936-086X, 1936-086X
Online-Zugang:Volltext
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Zusammenfassung:MoS2 intrinsically show Pt-like hydrogen evolution reaction (HER) performance. Pristine MoS2 displayed low HER activity, which was caused by low quantities of catalytic sites and unsatisfactory conductivity. Then, phase engineering and S vacancy were developed as effective strategies to elevate the intrinsic HER performance. Heterojunctions and dopants were successful strategies to improve HER performance significantly. A couple of state-of-the-art MoS2 catalysts showed HER performance comparable to Pt. Applying multiple strategies in the same electrocatalyst was the key to furnish Pt-like HER performance. In this review, we summarize the available strategies to fabricate superior MoS2 HER catalysts and tag the important works. We analyze the well-defined strategies for fabricating a superior MoS2 electrocatalyst, propose complementary strategies which could help meet practical requirements, and help people design highly efficient MoS2 electrocatalysts. We also provide a brief perspective on assembling practical electrochemical systems by high-performance MoS2 electrocatalysts, apply MoS2 in other important electrocatalysis reactions, and develop high-performance two-dimensional (2D) dichalcogenide HER catalysts not limited to MoS2. This review will help researchers to obtain a better understanding of development of superior MoS2 HER electrocatalysts, providing directions for next-generation catalyst development.
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ISSN:1936-0851
1936-086X
1936-086X
DOI:10.1021/acsnano.1c01879