Hollow Nanotubes of N‐Doped Carbon on CoS. (16th November 2016)

• Record Type: Journal Article
• Authors: Chen, Yuming; Li, Xiaoyan; Park, Kyusung; Zhou, Limin; Huang, Haitao; Mai, Yiu‐Wing; Goodenough, John B.
• Is Part Of: Angewandte Chemie. Volume 128:Number 51(2016)
• Page Start: 16063
• Page End: 16066
• Publication Date: 2016-11-16
• Subjects: Anodenmaterialien -- Batterien -- Cobalt -- N-dotierter Kohlenstoff -- Nanoröhren; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201608489
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: 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 in situ 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 2 A + +2 e − +CoS →Co+A2 S with A=Li or Na.