Porous Co₃O₄ Hollow Nanospheres Cathode Catalyst for High-capacity and Long-cycle Li-Air Batteries

Authors

Tong LIU, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
Na LI, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
Qing-chao LIU, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;School of Materials Science and Engineering, Jilin University, Changchun 130012, China;
Xin-bo ZHANG, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;Follow

Corresponding Author

Xin-bo ZHANG(xbzhang@ciac.ac.cn)

Abstract

In this paper, a high specific surface area of porous Co₃O₄ hollow nanospheres was successfully synthesized via hydrothermal carbonization at 140 ^oC, followed by calcination using cobalt nitrate hexahydrate (Co(NO₃)₂·6H₂O), hexamethylenetetramine (HMT), sucrose, and sodium citrate (Na₃C₆H₅O₇). The porous Co₃O₄ hollow nanospheres consisted of nanoparticles with high specific surface area of mesoporous structure, and could provide active reaction sites for OER and ORR. When used as lithium-air battery cathode catalyst, the Co₃O₄/Super P (SP) electrode exhibited excellent cycle performance, resulting in high capacity and long life of lithium-air batteries.

Graphical Abstract

Keywords

Co3O4 hollow spheres, lithium-air batteries, long life, hydrothermal

DOI Link

https://doi.org/10.13208/j.electrochem.141049

Publication Date

2015-04-28

Online Available Date

2015-04-23

Revised Date

2015-02-01

Received Date

2014-11-03

Recommended Citation

Tong LIU, Na LI, Qing-chao LIU, Xin-bo ZHANG. Porous Co₃O₄ Hollow Nanospheres Cathode Catalyst for High-capacity and Long-cycle Li-Air Batteries[J]. Journal of Electrochemistry, 2015 , 21(2): 157-161.
DOI: 10.13208/j.electrochem.141049
Available at: https://jelectrochem.xmu.edu.cn/journal/vol21/iss2/8

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