title: Hollow Nanotubes of N-Doped Carbon on CoS.
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+A2S with A=Li or Na.
authors.affiliation: Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, China.|Texas Materials Institute and Materials Science and Engineering Program, The University of Texas at Austin, Austin, TX, 78712, USA.
authors.forename: Yuming
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, China.
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Li
authors.affiliation: Texas Materials Institute and Materials Science and Engineering Program, The University of Texas at Austin, Austin, TX, 78712, USA.
authors.forename: Kyusung
authors.initials: K
authors.lastname: Park
authors.affiliation: Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
authors.forename: Limin
authors.initials: L
authors.lastname: Zhou
authors.affiliation: Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, China.
authors.forename: Haitao
authors.initials: H
authors.lastname: Huang
authors.affiliation: Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong, China.|Centre for Advanced Materials Technology (CAMT), School of Aerospace, Mechanical and Mechatronics Engineering J07, The University of Sydney, NSW, 2006, Australia.
authors.forename: Yiu-Wing
authors.initials: YW
authors.lastname: Mai
authors.affiliation: Texas Materials Institute and Materials Science and Engineering Program, The University of Texas at Austin, Austin, TX, 78712, USA.
authors.forename: John B
authors.initials: JB
authors.lastname: Goodenough
keywords: N-doped carbon; anode materials; batteries; cobalt; nanotubes