The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Direct 12-Electron Oxidation of Ethanol on a Ternary Au(core)-PtIr(Shell) Electrocatalyst
Abstract
Understanding the roles of metals and atomic structures in activating various elementary steps of electrocatalytic reactions can help rational design of binary or ternary catalysts for promoting activity toward desirable products via favorable pathways. Here we report on a newly developed ternary [email protected] core–shell catalyst for ethanol oxidation reaction (EOR) in alkaline solutions, which exhibits an activity enhancement of 6 orders of magnitude compared to AuPtIr alloy catalysts. Analysis of in situ infrared reflection absorption spectra for [email protected] and its bimetallic subsets, [email protected] and PtIr alloy, found that monatomic steps and Au-induced tensile strain on PtIr facilitate C–C bond splitting via ethanol dissociative adsorption and Ir promotes dehydrogenation at low potentials. As evidenced by the CO band being observed only for the PtIr alloy that is rather inactive for ethanol dissociative adsorption, we propose that splitting the C–C bond at the earliest stage of EOR activates a direct 12-electron full oxidation pathway because hydrogen-rich fragments can be fully oxidized without CO as a poisoning intermediate. The resulting synergy of complementary effects of Au core and surface Ir leads to an outstanding performance of [email protected] for EOR as characterized by a low onset potential of 0.3 V and 8.3 A mg –1 all-metals peak current with 57% currents generated via full ethanol oxidation.
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Citations
Cites
Electrocatalytic Oxidation of Ammonia on Transition-Metal Surfaces: A First-Principles Study
Herron, J. A., Ferrin, P., & Mavrikakis, M. (2015) · The Journal of Physical Chemistry C · doi:10.1021/jp512981f · Cited by 291
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Recent progress of high-entropy materials for energy storage and conversion
Amiri, A., & Shahbazian-Yassar, R. (2021) · Journal of Materials Chemistry A · doi:10.1039/d0ta09578h · Cited by 592
High-entropy alloys in electrocatalysis: from fundamentals to applications
Ren, J.-T., Chen, L., Wang, H.-Y., & Yuan, Z.-Y. (2023) · Chemical Society Reviews · doi:10.1039/d3cs00557g · Cited by 551
Multi‐Sites Electrocatalysis in High‐Entropy Alloys
Li, H., Lai, J., Li, Z., & Wang, L. (2021) · Advanced Functional Materials · doi:10.1002/adfm.202106715 · Cited by 494
Adsorption Energy in Oxygen Electrocatalysis
Zhang, J., Yang, H. B., Zhou, D., & Liu, B. (2022) · Chemical Reviews · doi:10.1021/acs.chemrev.1c01003 · Cited by 299
Liu, G., Zhou, W., Ji, Y., Chen, B., Fu, G., Yun, Q., Chen, S., Lin, Y., Yin, P.-F., Cui, X., et al. (2021) · Journal of the American Chemical Society · doi:10.1021/jacs.1c05856 · Cited by 269
Self-citationQin, Y., Zhang, W., Wang, F., Li, J., Ye, J., Sheng, X., Li, C., Liang, X., Liu, P., Wang, X., et al. (2022) · Angewandte Chemie International Edition · doi:10.1002/anie.202200899 · Cited by 257
Pei, A., Xie, R., Zhu, L., Wu, F., Huang, Z., Pang, Y., Chang, Y.-C., Chai, G., Pao, C.-W., Gao, Q., et al. (2025) · Journal of the American Chemical Society · doi:10.1021/jacs.4c12665 · Cited by 180
Wang, C., Huang, Z., Ding, Y., Xie, M., Chi, M., & Xia, Y. (2023) · Journal of the American Chemical Society · doi:10.1021/jacs.2c12368 · Cited by 75
Metadata
- Authors
- Liang, Z., Song, L., Deng, S., Zhu, Y., Stavitski, E., Adzic, R. R., Chen, J., & Wang, J. X.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2019-05-26
- Volume
- 141
- Issue
- 24
- Pages
- 9629-9636
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2945768880
- Cited by
- 209
- References
- 1
- FWCI
- 4.95
- Type
- journal article
- Language
- en
- Open access
- closed
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