The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.
Unraveling Two Pathways for Electrochemical Alcohol and Aldehyde Oxidation on NiOOH
Abstract
Selective oxidation of alcohols to their corresponding aldehyde or carboxylic acid is one of the most important classes of organic synthesis reactions. In addition, electrochemical alcohol oxidation is considered a viable anode reaction that can be paired with H 2 evolution or other reductive fuel production reactions in electrochemical and photoelectrochemical cells. NiOOH, a material that has been extensively studied as an oxygen evolution catalyst, is among the most promising electrocatalysts for selective alcohol oxidation. Electrochemical alcohol oxidation by NiOOH has been understood since the 1970s to proceed through a hydrogen atom transfer to NiOOH. In this study, we establish that there is a second, more dominant general alcohol oxidation pathway on NiOOH enabled at more positive potentials. Using a three-step electrochemical procedure we developed, we deconvoluted the currents corresponding to these two pathways for various alcohols and aldehydes. The results show that alcohols and aldehydes have a distinct difference in their respective preferences for the two oxidation pathways. Our three-step electrochemical procedure also allowed us to evaluate the Ni valence involved with the different oxidation pathways to elucidate their mechanistic differences. Using these experimental results coupled with a computational investigation, we propose that the new pathway entails hydride transfer from the substrate to Ni 4+ sites in NiOOH. This study offers an essential foundation to understand various oxidative electrochemical dehydrogenation reactions on oxide and hydroxide-based catalytic electrodes.
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Cited by
Yang, Y., & Mu, T. (2021) · Green Chemistry · doi:10.1039/d1gc00914a · Cited by 539
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Luo, R., Li, Y., Xing, L., Wang, N., Zhong, R., Qian, Z., Du, C., Yin, G., Wang, Y., & Du, L. (2022) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2022.121357 · Cited by 259
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Yang, Z., Wang, S., Wei, C., Chen, L., Xue, Z., & Mu, T. (2024) · Energy & Environmental Science · doi:10.1039/d3ee04543a · Cited by 169
Metadata
- Authors
- Bender, M. T., Lam, Y. C., Hammes-Schiffer, S., & Choi, K.-S.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2020-12-15
- Volume
- 142
- Issue
- 51
- Pages
- 21538-21547
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W3111341033
- Cited by
- 409
- References
- 29
- FWCI
- 6.50
- Type
- journal article
- Language
- en
- Open access
- closed
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