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MoS2–Ni3S2 Heteronanorods as Efficient and Stable Bifunctional Electrocatalysts for Overall Water Splitting

Yang, Yaqing, Zhang, Kai, Lin, Huanlei, Li, Xiang, Chan, Hang Cheong, Yang, Lichun, Gao, Qingsheng·2017·ACS Catalysis

Abstract

Exploring noble-metal-free electrocatalysts with high efficiency for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) holds promise for advancing the production of H 2 fuel through water splitting. Herein, one-pot synthesis was introduced for MoS 2 –Ni 3 S 2 heteronanorods supported by Ni foam (MoS 2 –Ni 3 S 2 HNRs/NF), in which the Ni 3 S 2 nanorods were hierarchically integrated with MoS 2 nanosheets. The hierarchical MoS 2 –Ni 3 S 2 heteronanorods allow not only the good exposure of highly active heterointerfaces but also the facilitated charge transport along Ni 3 S 2 nanorods anchored on conducting nickel foam, accomplishing the promoted kinetics and activity for HER, OER, and overall water splitting. The optimal MoS 2 –Ni 3 S 2 HNRs/NF presents low overpotentials (η 10 ) of 98 and 249 mV to reach a current density of 10 mA cm –2 in 1.0 M KOH for HER and OER, respectively. Assembled as an electrolyzer for overall water splitting, such heteronanorods show a quite low cell voltage of 1.50 V at 10 mA cm –2 and remarkable stability for more than 48 h, which are among the best values of current noble-metal-free electrocatalysts. This work elucidates a rational design of heterostructures as efficient electrocatalysts, shedding some light on the development of functional materials in energy chemistry.

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Metadata

Authors
Yang, Y., Zhang, K., Lin, H., Li, X., Chan, H. C., Yang, L., & Gao, Q.
Venue
ACS Catalysis
Published
2017-02-28
Volume
7
Issue
4
Pages
2357-2366
ISSN
2155-5435 (ISSN-L)
OpenAlex
W2588882602
Cited by
1,150
References
16
FWCI
35.51
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: MoS2–Ni3S2 Heteronanorods as Efficient and Stable Bifunctional Electrocatalysts for Overall Water Splitting. https://app.cochat.ai/papers/10.1021/acscatal.6b03192
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Yang, Y., Zhang, K., Lin, H., Li, X., Chan, H. C., Yang, L., & Gao, Q. (2017). MoS2–Ni3S2 Heteronanorods as Efficient and Stable Bifunctional Electrocatalysts for Overall Water Splitting. ACS Catalysis. https://doi.org/10.1021/acscatal.6b03192

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