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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 |
Published version: | http://dx.doi.org/10.1002/adfm.201904206 |
Appears in Collections: | Aurora harvest 4 Chemical Engineering publications |
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