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  • Title: Nitrogen-doped porous carbon/Co3O4 nanocomposites as anode materials for lithium-ion batteries.
    Author: Wang L, Zheng Y, Wang X, Chen S, Xu F, Zuo L, Wu J, Sun L, Li Z, Hou H, Song Y.
    Journal: ACS Appl Mater Interfaces; 2014 May 28; 6(10):7117-25. PubMed ID: 24802130.
    Abstract:
    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) and 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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