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Cited by 344

The DOI matches its Crossref record; 41 of the 41 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

Deng, Wanyu, Zhang, Lei, Li, Lulu, Chen, Sai, Hu, Congling, Zhao, Zhi-Jian, Wang, Tuo, Gong, Jinlong·2019·Journal of the American Chemical Society

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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  1. 10.1021/ic50053a005 · doi:10.1021/ic50053a005
  2. 10.5006/1.3280562 · doi:10.5006/1.3280562

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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
Published
2019-02-04
Volume
141
Issue
7
Pages
2911-2915
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2914839780
Cited by
344
References
41
FWCI
7.06
Type
journal article
Language
en
Open access
closed
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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