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In Situ Spectroscopic Identification of μ-OO Bridging on Spinel Co3O4Water Oxidation Electrocatalyst
Abstract
The formation of μ-OO peroxide (Co–OO–Co) moieties on spinel Co 3 O 4 electrocatalyst prior to the rise of the electrochemical oxygen evolution reaction (OER) current was identified by in situ spectroscopic methods. Through a combination of independent in situ X-ray absorption, grazing-angle X-ray diffraction, and Raman analysis, we observed a clear coincidence between the formation of μ-OO peroxide moieties and the rise of the anodic peak during OER. This finding implies that a chemical reaction step could be generally ignored before the onset of OER current. More importantly, the tetrahedral Co 2+ ions in the spinel Co 3 O 4 could be the vital species to initiate the formation of the μ-OO peroxide moieties.
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Citations
Cited by
Xiao, Z., Huang, Y.-C., Dong, C.-L., Xie, C., Liu, Z., Du, S., Chen, W., Yan, D., Tao, L., Shu, Z., et al. (2020) · Journal of the American Chemical Society · doi:10.1021/jacs.0c00257 · Cited by 1,445
Moysiadou, A., Lee, S., Hsu, C.-S., Chen, H. M., & Hu, X. (2020) · Journal of the American Chemical Society · doi:10.1021/jacs.0c04867 · Cited by 987
Zhao, Y., Adiyeri Saseendran, D. P., Huang, C., Triana, C. A., Marks, W. R., Chen, H., Zhao, H., & Patzke, G. R. (2023) · Chemical Reviews · doi:10.1021/acs.chemrev.2c00515 · Cited by 802
A General Method to Probe Oxygen Evolution Intermediates at Operating Conditions
Tao, H. B., Xu, Y., Huang, X., Chen, J., Pei, L., Zhang, J., Chen, J. G., & Liu, B. (2019) · Joule · doi:10.1016/j.joule.2019.03.012 · Cited by 587
Self-citationZhang, R., Pan, L., Guo, B., Huang, Z.-F., Chen, Z., Wang, L., Zhang, X., Guo, Z., Xu, W., Loh, K. P., et al. (2023) · Journal of the American Chemical Society · doi:10.1021/jacs.2c10515 · Cited by 544
Metadata
- Authors
- Wang, H.-Y., Hung, S.-F., Hsu, Y.-Y., Zhang, L., Miao, J., Chan, T.-S., Xiong, Q., & Liu, B.
- Venue
- The Journal of Physical Chemistry Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-11-15
- Volume
- 7
- Issue
- 23
- Pages
- 4847-4853
- ISSN
- 1948-7185 (ISSN-L)
- OpenAlex
- W2555759753
- Cited by
- 195
- References
- 0
- FWCI
- 2.86
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wang, H.-Y., Hung, S.-F., Hsu, Y.-Y., Zhang, L., Miao, J., Chan, T.-S., Xiong, Q., & Liu, B. (2016). In Situ Spectroscopic Identification of μ-OO Bridging on Spinel Co3O4Water Oxidation Electrocatalyst. The Journal of Physical Chemistry Letters. https://doi.org/10.1021/acs.jpclett.6b02147
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