Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/122435
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Type: Journal article
Title: Targeted synergy between adjacent co atoms on graphene oxide as an efficient new electrocatalyst for Li-CO2 batteries
Author: Zhang, B.-W.
Jiao, Y.
Chao, D.-L.
Ye, C.
Wang, Y.-X.
Davey, K.
Liu, H.-K.
Dou, S.-X.
Qiao, S.-Z.
Citation: Advanced Functional Materials, 2019; 29(49):1904206-1-1904206-7
Publisher: Wiley
Issue Date: 2019
ISSN: 1616-3028
1616-3028
Statement of
Responsibility: 
Bin-Wei Zhang, Yan Jiao, Dong-Liang Chao, Chao Ye, Yun-Xiao Wang, Kenneth Davey, Hua-Kun Liu, Shi-Xue Dou, and Shi-Zhang Qiao
Abstract: Li–CO2 batteries are an attractive technology for converting CO2 into energy. However, the decomposition of insulating Li2CO3 on the cathode during discharge is a barrier to practical application. Here, it is demonstrated that a high loading of single Co atoms (≈5.3%) anchored on graphene oxide (adjacent Co/GO) acts as an efficient and durable electrocatalyst for Li–CO2 batteries. This targeted dispersion of atomic Co provides catalytically adjacent active sites to decompose Li2CO3. The adjacent Co/GO exhibits a highly significant sustained discharge capacity of 17 358 mA h g−1 at 100 mA g−1 for >100 cycles. Density functional theory simulations confirm that the adjacent Co electrocatalyst possesses the best performance toward the decomposition of Li2CO3 and maintains metallic‐like nature after the adsorption of Li2CO3.
Rights: © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
DOI: 10.1002/adfm.201904206
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Chemical Engineering publications

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