The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Crucial Role of Surface Hydroxyls on the Activity and Stability in Electrochemical CO2 Reduction
Abstract
The role of surface hydroxyls is significant for understanding catalytic performance of metallic oxides for CO 2 electroreduction reaction (CO 2 ER). This Communication describes, employing SnO x as a model system, how to moderate coverage of hydroxyl to derive a stable Sn branches catalyst for CO 2 ER with a 93.1% Faradaic efficiency (FE) of carbonaceous products. With use of in situ attenuated total reflection surface enhanced infrared adsorption spectroscopy (ATR-SEIRAS) and density functional theory (DFT) calculations, we found that a proper amount of surface hydroxyls offered effective sites to boost CO 2 adsorption via hydrogen bond. However, a higher surface coverage of hydroxyls leads to self-reduction of Sn–OH. We also explained the competition between self-reduction and CO 2 reduction over Sn-based catalysts. The findings revealed the quantitative correlation between surface coverage of hydroxyl and CO 2 ER activity and suggested a logical extension to other metal oxide catalysts for CO 2 ER.
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Electrocatalysis for CO 2 conversion: from fundamentals to value-added products
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Metadata
- Authors
- Deng, W., Zhang, L., Li, L., Chen, S., Hu, C., Zhao, Z.-J., Wang, T., & Gong, J.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2019-02-04
- Volume
- 141
- Issue
- 7
- Pages
- 2911-2915
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2914839780
- Cited by
- 344
- References
- 4
- FWCI
- 7.06
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Funders
- State Administration of Foreign Experts Affairs (B06006)
- Ministry of Education of the People's Republic of China (B06006)
- Ministry of Science and Technology of the People's Republic of China (2016YFB0600901)
- National Natural Science Foundation of China (21606169, 21525626, U1463205)
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- Deng, W., Zhang, L., Li, L., Chen, S., Hu, C., Zhao, Z.-J., Wang, T., & Gong, J. (2019). Crucial Role of Surface Hydroxyls on the Activity and Stability in Electrochemical CO2 Reduction. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.8b13786
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