In:
Journal of Materials Research, Springer Science and Business Media LLC, Vol. 35, No. 7 ( 2020-04-14), p. 822-830
Abstract:
Developing low-cost and high-performance hydrogen evolution reaction (HER) electrocatalysts is essential for the development of hydrogen energy. While transition metal sulfides are reported as promising HER electrocatalysts, their performance still requires further improvement for practical application. In this work, we report a strategy to construct NiS x @MoS 2 heterostructures with a well-defined interface structure by growing NiS x nanoclusters on MoS 2 nanosheets through atomic layer deposition (ALD). NiS x @MoS 2 heterostructures exhibit strongly enhanced HER activity with lower overpotential and faster reaction dynamic compared to MoS 2 and NiS x single phases. The enhanced performance is attributed to improved adsorption of the reaction intermediates and the facilitated charge transfer process near the MoS 2 /NiS x interfaces. Besides high activity, NiS x @MoS 2 heterostructures also exhibit high stability in alkaline media. The methodology and knowledge in this work can guide the rational design of high-performance electrocatalysts through hetero-interface engineering.
Type of Medium:
Online Resource
ISSN:
0884-2914
,
2044-5326
DOI:
10.1557/jmr.2019.325
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2020
detail.hit.zdb_id:
54876-5
detail.hit.zdb_id:
2015297-8
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