The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.
Pomegranate-like N,P-Doped Mo2C@C Nanospheres as Highly Active Electrocatalysts for Alkaline Hydrogen Evolution
Abstract
Well-defined pomegranate-like N,P-doped Mo2C@C nanospheres were prepared by simply using phosphomolybdic acid (PMo12) to initiate the polymerization of polypyrrole (PPy) and as a single source for Mo and P to produce N,P-doped Mo2C nanocrystals. The existence of PMo12 at the molecular scale in the polymer network allows the formation of pomegranate-like Mo2C@C nanospheres with a porous carbon shell as peel and Mo2C nanocrystals well-dispersed in the N-doped carbon matrix as seeds. This nanostructure provides several favorable features for hydrogen evolution application: (1) the conductive carbon shell and matrix effectively prevent the aggregation of Mo2C nanocrystals and facilitate electron transportation; (2) the uniform N,P-doping in the carbon shell/matrix and plenty of Mo2C nanocrystals provide abundant catalytically highly active sites; and (3) nanoporous structure allows the effective exposure of active sites and mass transfer. Moreover, the uniform distribution of P and Mo from the single source of PMo12 and N from PPy in the polymeric PPy-PMo12 precursor guarantees the uniform N- and P-co-doping in both the graphitic carbon matrix and Mo2C nanocrystals, which contributes to the enhancement of electrocatalytic performance. As a result, the pomegranate-like Mo2C@C nanospheres exhibit extraordinary electrocatalytic activity for the hydrogen evolution reaction (HER) in terms of an extremely low overpotential of 47 mV at 10 mA cm(-2) in 1 M KOH, which is one of the best Mo-based HER catalysts. The strategy for preparing such nanostructures may open up opportunities for exploring low-cost high-performance electrocatalysts for various applications.
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Citations
Cites
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Cited by
Heterostructures for Electrochemical Hydrogen Evolution Reaction: A Review
Zhao, G., Rui, K., Dou, S. X., & Sun, W. (2018) · Advanced Functional Materials · doi:10.1002/adfm.201803291 · Cited by 1,422
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Wang, R., Dong, X., Du, J., Zhao, J., & Zang, S. (2018) · Advanced Materials · doi:10.1002/adma.201703711 · Cited by 580
Strategies for design of electrocatalysts for hydrogen evolution under alkaline conditions
Wang, X., Zheng, Y., Sheng, W., Xu, Z. J., Jaroniec, M., & Qiao, S.-Z. (2020) · Materials Today · doi:10.1016/j.mattod.2019.12.003 · Cited by 533
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Metadata
- Authors
- Chen, Y.-Y., Zhang, Y., Jiang, W.-J., Zhang, X., Dai, Z., Wan, L.-J., & Hu, J.-S.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-09-14
- Volume
- 10
- Issue
- 9
- Pages
- 8851-8860
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2520444078
- Cited by
- 643
- References
- 13
- FWCI
- 23.51
- Type
- journal article
- Language
- en
- Open access
- closed
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