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A Study of the Mechanism of the Hydrogen Evolution Reaction on Nickel by Surface Interrogation Scanning Electrochemical Microscopy
Abstract
The hydrogen evolution reaction (HER) on Ni in alkaline media was investigated by scanning electrochemical microscopy under two operating modes. First, the substrate generation/tip collection mode was employed to extract the "true" cathodic current associated with the HER from the total current in the polarization curve. Compared to metallic Ni, the electrocatalytic activity of the HER is improved in the presence of the low-valence-state oxide of Ni. This result is in agreement with a previous claim that the dissociative adsorption of water can be enhanced at the Ni/Ni oxide interface. Second, the surface-interrogation scanning electrochemical microscopy (SI-SECM) mode was used to directly measure the coverage of the adsorbed hydrogen on Ni at given potentials. Simulation indicates that the hydrogen coverage follows a Frumkin isotherm with respect to the applied potential. On the basis of the combined analysis of the Tafel slope and surface hydrogen coverage, the rate-determining step is suggested to be the adsorption of hydrogen (Volmer step) in the investigated potential window.
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Citations
Cites
Enhancing Hydrogen Evolution Activity in Water Splitting by Tailoring Li + -Ni(OH) 2 -Pt Interfaces
Subbaraman, R., Tripkovic, D., Strmcnik, D., Chang, K.-C., Uchimura, M., Paulikas, A. P., Stamenkovic, V., & Markovic, N. M. (2011) · Science · doi:10.1126/science.1211934 · Cited by 3,135
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Li, X., Yu, J., Jaroniec, M., & Chen, X. (2019) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00400 · Cited by 2,304
Liu, E., Li, J., Jiao, L., Doan, H. T. T., Liu, Z., Zhao, Z., Huang, Y., Abraham, K. M., Mukerjee, S., & Jia, Q. (2019) · Journal of the American Chemical Society · doi:10.1021/jacs.8b13228 · Cited by 382
Liu, K., Li, H., Xie, M., Wang, P., Jin, Z., Liu, Y., Zhou, M., Li, P., & Yu, G. (2024) · Journal of the American Chemical Society · doi:10.1021/jacs.4c00429 · Cited by 369
Low-temperature water electrolysis: fundamentals, progress, and new strategies
Li, W., Tian, H., Ma, L., Wang, Y., Liu, X., & Gao, X. (2022) · Materials Advances · doi:10.1039/d2ma00185c · Cited by 312
Experimental Proof of the Bifunctional Mechanism for the Hydrogen Oxidation in Alkaline Media
Li, J., Ghoshal, S., Bates, M. K., Miller, T. E., Davies, V., Stavitski, E., Attenkofer, K., Mukerjee, S., Ma, Z., & Jia, Q. (2017) · Angewandte Chemie International Edition · doi:10.1002/anie.201708484 · Cited by 304
Metadata
- Authors
- Liang, Z., Ahn, H. S., & Bard, A. J.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-03-22
- Volume
- 139
- Issue
- 13
- Pages
- 4854-4858
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2593787326
- Cited by
- 159
- References
- 1
- FWCI
- 3.91
- Type
- journal article
- Language
- en
- Open access
- closed
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- Liang, Z., Ahn, H. S., & Bard, A. J. (2017). A Study of the Mechanism of the Hydrogen Evolution Reaction on Nickel by Surface Interrogation Scanning Electrochemical Microscopy. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.7b00279
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