The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.
Atomic‐Scale Core/Shell Structure Engineering Induces Precise Tensile Strain to Boost Hydrogen Evolution Catalysis
Abstract
Tuning surface strain is a new strategy for boosting catalytic activity to achieve sustainable energy supplies; however, correlating the surface strain with catalytic performance is scarce because such mechanistic studies strongly require the capability of tailoring surface strain on catalysts as precisely as possible. Herein, a conceptual strategy of precisely tuning tensile surface strain on Co 9 S 8/MoS 2 core/shell nanocrystals for boosting the hydrogen evolution reaction (HER) activity by controlling the MoS 2 shell numbers is demonstrated. It is found that the tensile surface strain of Co 9 S 8/MoS 2 core/shell nanocrystals can be precisely tuned from 3.5% to 0% by changing the MoS 2 shell layer from 5L to 1L, in which the strained Co 9 S 8/1L MoS 2 (3.5%) exhibits the best HER performance with an overpotential of only 97 mV (10 mA cm−2) and a Tafel slope of 71 mV dec−1. The density functional theory calculation reveals that the Co 9 S 8/1L MoS 2 core/shell nanostructure yields the lowest hydrogen adsorption energy (∆EH) of −1.03 eV and transition state energy barrier (∆E2H*) of 0.29 eV (MoS 2, ∆EH = −0.86 eV and ∆E2H* = 0.49 eV), which are the key in boosting HER activity by stabilizing the HER intermediate, seizing H ions, and releasing H 2 gas.
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Cites
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Self-citationTuning the activity of Pt alloy electrocatalysts by means of the lanthanide contraction
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Cited by
Metallic nanostructures with low dimensionality for electrochemical water splitting
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Rational Design of Better Hydrogen Evolution Electrocatalysts for Water Splitting: A Review
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Self-supported nanoporous cobalt phosphosulfate electrodes for efficient hydrogen evolution reaction
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Metadata
- Authors
- Zhu, H., Gao, G., Du, M., Zhou, J., Wang, K., Wu, W., Chen, X., Li, Y., Ma, P., Dong, W., Duan, F., Chen, M., Wu, G., Wu, J., Yang, H., & Guo, S.
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2018-05-07
- Volume
- 30
- Issue
- 26
- Pages
- e1707301-e1707301
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W2803019633
- Cited by
- 220
- References
- 11
- FWCI
- 6.84
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhu, H., Gao, G., Du, M., Zhou, J., Wang, K., Wu, W., Chen, X., Li, Y., Ma, P., Dong, W., Duan, F., Chen, M., Wu, G., Wu, J., Yang, H., & Guo, S. (2018). Atomic‐Scale Core/Shell Structure Engineering Induces Precise Tensile Strain to Boost Hydrogen Evolution Catalysis. Advanced Materials. https://doi.org/10.1002/adma.201707301
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