Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 51, Pages 15831-15834Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201608489
Keywords
anode materials; batteries; cobalt; N-doped carbon; nanotubes
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Funding
- Research Grants Council of the Hong Kong Special Administrative Region, China [PolyU5159/13E]
- Hong Kong Polytechnic University [1-ZVGH, 1-YW1A]
- Robert A. Welch Foundation of Houston, TX [F-1066]
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Low-cost, single-step synthesis of hollow nanotubes of N-doped carbon deposited on CoS is enabled by the simultaneous use of three functionalities of polyacrylonitrite (PAN) nanofibers: 1)a substrate for loading active materials, 2)a sacrificial template for creating hollow tubular structures, and 3)a precursor for insitu nitrogen doping. The N-doped carbon in hollow tubes of CoS provides a high-capacity anode of long cycle life for a rechargeable Li-ion or Na-ion battery cell that undergoes the conversion reaction 2A(+)+2e(-)+CoSCo+A(2)S with A=Li or Na.
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