Ultrafine NaTi2(PO4)(3) Nanoparticles Encapsulated in N-CNFs as Ultra-Stable Electrode for Sodium Storage

Yu, Sicen; Wan, Yi; Shang, Chaoqun; Wang, Zhenyu; Zhou, Liangjun; Zou, Jianli; Cheng, Hua; Lu, Zhouguang

2018-07-06

10.3389/fchem.2018.00270

Frontiers in Chemistry   影响因子和分区

2296-2646

We present a feasible method for the preparation of one-dimensional N-doping carbon nanofibers encapsulated NaTi2(PO4)(3) (NTP-NCNFs) through electrospinning accompanied by calcination. The poor electrical conductivity of NTP is significantly improved and the as-prepared NTP-NCNFs exhibit stable and ultrafast sodium-storage capability. The NTP-NCNFs maintains a stable specific capacity of 121 mAh g(-1) at 10C after 2,000 cycles, which only drop to 105 mAh g(-1) after 20,000 cycles. Furthermore, the NTP-NCNFs show excellent rate performance from 0.2 to 20 C, whose recovery efficiency still reaches 99.43%. The superior electrochemical property is mainly attributed to the large specific surface area, high porosity, N-doping carbon coating, and one-dimensional structure of NTP-NCNFs.

NTP N-doping carbon nanofibers cycling performance electrospinning sodium-storage

SCI

英语

第一 ; 通讯

Basic Research Project of the Science and Technology Innovation Commission of Shenzhen[JCYJ20170412153139454] ; Basic Research Project of the Science and Technology Innovation Commission of Shenzhen[JCYJ20170817110251498]

Chemistry

Chemistry, Multidisciplinary

WOS:000437678200001

FRONTIERS MEDIA SA

Web of Science

Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen, Peoples R China

Yu, Sicen,Wan, Yi,Shang, Chaoqun,et al. Ultrafine NaTi2(PO4)(3) Nanoparticles Encapsulated in N-CNFs as Ultra-Stable Electrode for Sodium Storage[J]. Frontiers in Chemistry,2018,6.

Yu, Sicen.,Wan, Yi.,Shang, Chaoqun.,Wang, Zhenyu.,Zhou, Liangjun.,...&Lu, Zhouguang.(2018).Ultrafine NaTi2(PO4)(3) Nanoparticles Encapsulated in N-CNFs as Ultra-Stable Electrode for Sodium Storage.Frontiers in Chemistry,6.

Yu, Sicen,et al."Ultrafine NaTi2(PO4)(3) Nanoparticles Encapsulated in N-CNFs as Ultra-Stable Electrode for Sodium Storage".Frontiers in Chemistry 6(2018).