Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 10, Pages 7117-7125Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am406053s
Keywords
N-doped porous carbon; Co3O4; nanocomposites; anode; lithium-ion batteries
Funding
- National Natural Science Foundation of China [21065005, 21165010, 21101146]
- Young Scientist Foundation of Jiangxi Province [20112BCB23006, 20122BCB23011]
- Science and Technology Support Program of Jiangxi Province [20123BBE50104, 20133BBE50008]
- Foundation of Jiangxi Educational Committee [GJJ13243, GJJ13244]
- State Key Laboratory of Electroanalytical Chemistry [SKLEAC201310]
- Key Laboratory of Functional Small organic molecule, Ministry of Education, Jiangxi Normal University [KLFS-KF-201214, KLFS-KF-201218]
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A simple and industrially scalable approach to prepare porous carbon (PC) with high surface areas as well as abundant nitrogen element as anode supporting materials for lithium-ion batteries (LIBs) was developed. Herein, the N-doped PC was prepared by carbonizing crawfish shell, which is a kind of food waste with abundant marine chitin as well as a naturally porous structure. The porous structure can be kept to form the N-doped PC in the pyrolysis process. The N-doped PC-Co3O4 nanocomposites were synthesized by loading Co3O4 on the N-doped PC as anode materials for LIBs. The resulting N-doped PC-Co3O4 nanocomposites release an initial discharge of 1223 mA h g(-1) at a current density of 100 mA g(-1) still maintain a high reversible capacity of 1060 mA h g(-1) after 100 cycles, which is higher than that of individual N-doped PC or Co3O4. Particularly, the N-doped PC-Co3O4 nanocomposites can be prepared in a large yield with a low cost because the N-doped PC is derived from abundant natural waste resources, which makes it a promising anode material for LIBs.
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