title: Mesoporous CNT@TiO2-C nanocable with extremely durable high rate capability for lithium-ion battery anodes.
abstract: A well-designed nanostructure CNT@TiO2-C with fine anatase TiO2 particle (< 8 nm), good electronic conducting network (inner CNT core and outer carbon layer), and mesoporous structure was prepared by a simple and green one-pot hydrothermal reaction. The utilization of glucose in the hydrothermal process not only solves the interfacial incompatibility between CNTs and titanate sol and controls the nucleation and growth of TiO2 particles, but also introduces a uniform, glucose-derived, carbon-layer on the TiO2 particles. The nanosized TiO2 particle, high conducting network, and interconnected nanopores of the CNT@TiO2-C nanocable greatly improve its electrochemical performances, especially rate capability. The CNT@TiO2-C nanocables show remarkable rate capability with reversible charge capacity of 297, 240, 210,178 and 127 mAh g(-1) at 1C, 5C, 10C, 20C and 50C, respectively, as well as excellent high rate cycling stability with capacity retention of 87% after 2000 cycles at 50C.
authors.affiliation: 1] Institute of Chemical Materials, China Academy of Engineering Physics, P.O.BOX 919-328 Mianyang, Sichuan 621900, China [2] Sichuan research center of new materials, Chengdu, Sichuan 610207, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Wang
authors.affiliation: Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
authors.forename: Huolin
authors.initials: H
authors.lastname: Xin
authors.affiliation: 1] Institute of Chemical Materials, China Academy of Engineering Physics, P.O.BOX 919-328 Mianyang, Sichuan 621900, China [2] Sichuan research center of new materials, Chengdu, Sichuan 610207, China.
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Li
authors.affiliation: 1] Institute of Chemical Materials, China Academy of Engineering Physics, P.O.BOX 919-328 Mianyang, Sichuan 621900, China [2] Sichuan research center of new materials, Chengdu, Sichuan 610207, China.
authors.forename: Jianli
authors.initials: J
authors.lastname: Cheng
authors.affiliation: Institute of Chemical Materials, China Academy of Engineering Physics, P.O.BOX 919-328 Mianyang, Sichuan 621900, China.
authors.forename: Guangcheng
authors.initials: G
authors.lastname: Yang
authors.affiliation: Institute of Chemical Materials, China Academy of Engineering Physics, P.O.BOX 919-328 Mianyang, Sichuan 621900, China.
authors.forename: Fude
authors.initials: F
authors.lastname: Nie