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Cited by 357

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Carbon-Armored Co9S8 Nanoparticles as All-pH Efficient and Durable H2-Evolving Electrocatalysts

Feng, Liang-Liang, Li, Guo-Dong, Liu, Yipu, Wu, Yuanyuan, Chen, Hui, Wang, Yun, Zou, Yong-Cun, Wang, Dejun, Zou, Xiaoxin·2015·ACS Applied Materials & Interfaces
DOI 10.1021/am507811a
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Abstract

Splitting water to produce hydrogen requires the development of non-noble-metal catalysts that are able to make this reaction feasible and energy efficient. Herein, we show that cobalt pentlandite (Co9S8) nanoparticles can serve as an electrochemically active, noble-metal-free material toward hydrogen evolution reaction, and they work stably in neutral solution (pH 7) but not in acidic (pH 0) and basic (pH 14) media. We, therefore, further present a carbon-armoring strategy to increase the durability and activity of Co9S8 over a wider pH range. In particular, carbon-armored Co9S8 nanoparticles (Co9S8@C) are prepared by direct thermal treatment of a mixture of cobalt nitrate and trithiocyanuric acid at 700 °C in N2 atmosphere. Trithiocyanuric acid functions as both sulfur and carbon sources in the reaction system. The resulting Co9S8@C material operates well with high activity over a broad pH range, from pH 0 to 14, and gives nearly 100% Faradaic yield during hydrogen evolution reaction under acidic (pH 0), neutral (pH 7), and basic (pH 14) media. To the best of our knowledge, this is the first time that a transition-metal chalcogenide material is shown to have all-pH efficient and durable electrocatalytic activity. Identifying Co9S8 as the catalytically active phase and developing carbon-armoring as the improvement strategy are anticipated to give a fresh impetus to rational design of high-performance noble-metal-free water splitting catalysts.

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Citations

Cites

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Metadata

Authors
Feng, L.-L., Li, G.-D., Liu, Y., Wu, Y., Chen, H., Wang, Y., Zou, Y.-C., Wang, D., & Zou, X.
Venue
ACS Applied Materials & Interfaces
Publisher
American Chemical Society (ACS)
Published
2015-01-05
Volume
7
Issue
1
Pages
980-988
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
DOI
10.1021/am507811a
OpenAlex
W2313728383
Cited by
357
References
12
FWCI
9.93
Type
journal article
Language
en
Open access
closed
Funders
  • Ministry of Science and Technology of the People's Republic of China (2013CB632403)
  • National Natural Science Foundation of China (21371070, 21401066)
  • Jilin Province (20130204001GX, 20140101041JC, 20150520003JH)
  • Graduate Innovation Fund, Jilin Unversity (2014083)

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.