The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.
Ternary Porous Cobalt Phosphoselenide Nanosheets: An Efficient Electrocatalyst for Electrocatalytic and Photoelectrochemical Water Splitting
Open accessAbstract
Exploring efficient and earth‐abundant electrocatalysts is of great importance for electrocatalytic and photoelectrochemical hydrogen production. This study demonstrates a novel ternary electrocatalyst of porous cobalt phosphoselenide nanosheets prepared by a combined hydrogenation and phosphation strategy. Benefiting from the enhanced electric conductivity and large surface area, the ternary nanosheets supported on electrochemically exfoliated graphene electrodes exhibit excellent catalytic activity and durability toward hydrogen evolution in alkali, achieving current densities of 10 and 20 mA cm−2 at overpotentials of 150 and 180 mV, respectively, outperforming those reported for transition metal dichalcogenides and first‐row transition metal pyrites catalysts. Theoretical calculations reveal that the synergistic effects of Se vacancies and subsequent P displacements of Se atoms around the vacancies in the resulting cobalt phosphoselenide favorably change the electronic structure of cobalt selenide, assuring a rapid charge transfer and optimal energy barrier of hydrogen desorption, and thus promoting the proton kinetics. The overall‐water‐splitting with 10 mA cm−2 at a low voltage of 1.64 V is achieved using the ternary electrode as both the anode and cathode, and the performance surpasses that of the Ir/C–Pt/C couple for sufficiently high overpotentials. Moreover, the integration of ternary nanosheets with macroporous silicon enables highly efficient solar‐driven photoelectrochemical hydrogen production.
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Cites
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Cited by
Peng, X., Yan, Y., Jin, X., Huang, C., Jin, W., Gao, B., & Chu, P. K. (2020) · Nano Energy · doi:10.1016/j.nanoen.2020.105234 · Cited by 450
Charge State Manipulation of Cobalt Selenide Catalyst for Overall Seawater Electrolysis
Zhao, Y., Jin, B., Zheng, Y., Jin, H., Jiao, Y., & Qiao, S. (2018) · Advanced Energy Materials · doi:10.1002/aenm.201801926 · Cited by 368
Wang, L., Li, Z., Wang, K., Dai, Q., Lei, C., Yang, B., Zhang, Q., Lei, L., Leung, M. K. H., & Hou, Y. (2020) · Nano Energy · doi:10.1016/j.nanoen.2020.104850 · Cited by 196
Self-citationYang, J., Guo, D., Zhao, S., Lin, Y., Yang, R., Xu, D., Shi, N., Zhang, X., Lu, L., Lan, Y., et al. (2019) · Small · doi:10.1002/smll.201804546 · Cited by 148
Metadata
- Authors
- Hou, Y., Qiu, M., Zhang, T., Zhuang, X., Kim, C., Yuan, C., & Feng, X.
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2017-07-17
- Volume
- 29
- Issue
- 35
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W2734573064
- Cited by
- 251
- References
- 12
- FWCI
- 10.67
- Type
- journal article
- Language
- en
- Open access
- green
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- Hou, Y., Qiu, M., Zhang, T., Zhuang, X., Kim, C., Yuan, C., & Feng, X. (2017). Ternary Porous Cobalt Phosphoselenide Nanosheets: An Efficient Electrocatalyst for Electrocatalytic and Photoelectrochemical Water Splitting. Advanced Materials. https://doi.org/10.1002/adma.201701589
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