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|Title:||Targeted synergy between adjacent co atoms on graphene oxide as an efficient new electrocatalyst for Li-CO2 batteries|
|Citation:||Advanced Functional Materials, 2019; 29(49):1904206-1-1904206-7|
|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|
|Appears in Collections:||Aurora harvest 4|
Chemical Engineering publications
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