New Approach to Create TiO2(B)/Carbon Core/Shell Nanotubes: Ideal   Structure for Enhanced Lithium Ion Storage

doi:10.1021/acsami.6b04588

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	New Approach to Create TiO2(B)/Carbon Core/Shell Nanotubes: Ideal Structure for Enhanced Lithium Ion Storage
	Zhu, Xiaoyi ; Yang, Xianfeng ; Lv, Chunxiao ; Guo, Shaojun ; Li, Jianjiang ; Zheng, Zhanfeng ; Zhu, Huaiyong ; Yang, Dongjiang
刊名	ACS Applied Materials & Interfaces
	2016
关键词	TiO2(B) nanotube lithium-ion battery anode core/shell structure surface binding long-chain silane TIO2 HOLLOW SPHERES N-DOPED CARBON ANODE MATERIALS COBALT ALGINATE BATTERY ANODES RUTILE TIO2 PERFORMANCE GROWTH COMPOSITE OXIDES
DOI	10.1021/acsami.6b04588
英文摘要	To achieve uniform carbon coating on TiO2 nanomaterials, high temperature (>500 degrees C) annealing treatment is a necessity. However, the annealing treatment inevitably leads to the strong phase transformation from TiO2(B) with high lithium ion storage (LIS) capacity to anatase with low LIS one as well as the damage of nanostructures. Herein, we demonstrate a new approach to create TiO2(B)/carbon core/shell nanotubes (C@TBNTs) using a long-chain silane polymethylhydrosiloxane (PMHS) to bind the TBNTs by forming Si-O-Ti bonds. The key feature of this work is that the introduction of PMHS onto TBNTs can afford TBNTs with very high thermal stability at higher than 700 degrees C and inhibit the phase transformation from TiO2(B) to anatase. Such a high thermal property of PMHS-TBNTs makes them easily coated with highly graphitic carbon shell via CVD process at 700 degrees C. The as-prepared C@TBNTs deliver outstanding rate capability and electrochemical stability, i.e., reversible capacity above 250 mAh g(-1) at 10 C and a high specific capacity of 479.2 mAh g(-1) after 1000 cycles at 1 C. As far as we know, the LIS performance of our sample is the highest among the previously reported TiO2(B) anode materials.; National Natural Science Foundation of China [51473081, 51503109]; research award fund for outstanding young scientists in Shandong province [BS2014CL006]; Peking University; Young Thousand Talented Program; SCI(E); EI; PubMed; ARTICLE; guosj@pku.edu.cn; d.yang@qdu.edu.cn; 29; 18815-18821; 8
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/491832]
专题	工学院
推荐引用方式 GB/T 7714	Zhu, Xiaoyi,Yang, Xianfeng,Lv, Chunxiao,et al. New Approach to Create TiO2(B)/Carbon Core/Shell Nanotubes: Ideal Structure for Enhanced Lithium Ion Storage[J]. ACS Applied Materials & Interfaces,2016.
APA	Zhu, Xiaoyi.,Yang, Xianfeng.,Lv, Chunxiao.,Guo, Shaojun.,Li, Jianjiang.,...&Yang, Dongjiang.(2016).New Approach to Create TiO2(B)/Carbon Core/Shell Nanotubes: Ideal Structure for Enhanced Lithium Ion Storage.ACS Applied Materials & Interfaces.
MLA	Zhu, Xiaoyi,et al."New Approach to Create TiO2(B)/Carbon Core/Shell Nanotubes: Ideal Structure for Enhanced Lithium Ion Storage".ACS Applied Materials & Interfaces (2016).