Co₃(HCOO)₆@rGO as a Promising Anode for Lithium Ion Batteries

Authors

Heng JIANG, State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, iChem (Collaborative Innovation Center of Chemistry for Energy Materials), Xiamen University, Xiamen 361005, China;
Jing-min FAN, State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, iChem (Collaborative Innovation Center of Chemistry for Energy Materials), Xiamen University, Xiamen 361005, China;
Ming-sen ZHENG, State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, iChem (Collaborative Innovation Center of Chemistry for Energy Materials), Xiamen University, Xiamen 361005, China;Follow
Quan-feng DONG, State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, iChem (Collaborative Innovation Center of Chemistry for Energy Materials), Xiamen University, Xiamen 361005, China;Follow

Corresponding Author

Ming-sen ZHENG(mszheng@xmu.edu.cn);
Quan-feng DONG(qfdong@xmu.edu.cn)

Abstract

Metal–organic framework(MOF) is a kind of novel electrode materials for lithium ion batteries. Here, a composite material Co₃(HCOO)₆@rGO was synthesized for the first time by in situ loading of Co₃(HCOO)₆ on rGO (reduced oxide graphene) through a solution chemistry method. As an anode material for lithium ion batteries, it exhibited an excellent cycle stability as well as a large reversible capacity of 926 mAh·g^-1 at a current density of 500 mA·g^-1 after 100 cycles within the voltage range of 0.02 ~ 3.0 V vs. Li/Li⁺ with a good rate capability. The results of cyclic voltammetry and XPS measurements revealed that both Co²⁺ and formate ions in Co₃(HCOO)₆@rGO uderwent reversible electrochemical reactions during the charge and discharge process. Compared with Co₃(HCOO)₆ synthesized through the same method, it was found that rGO could activate the electrochemical reaction of formate ion, which improved the Co₃(HCOO)₆ rate performance.A new route was demonstrated through this work to enhance the specific capacity and rate capability of MOFs by introducing rGO.

Graphical Abstract

Keywords

Co3(HCOO)6@rGO; Co3(HCOO)6, formate ion, anode, lithium ion batteries

DOI Link

https://doi.org/10.13208/j.electrochem.170412

Publication Date

2018-06-28

Online Available Date

2017-06-19

Revised Date

2017-06-07

Received Date

2017-04-12

Recommended Citation

Heng JIANG, Jing-min FAN, Ming-sen ZHENG, Quan-feng DONG. Co₃(HCOO)₆@rGO as a Promising Anode for Lithium Ion Batteries[J]. Journal of Electrochemistry, 2018 , 24(3): 207-215.
DOI: 10.13208/j.electrochem.170412
Available at: https://jelectrochem.xmu.edu.cn/journal/vol24/iss3/2