Flexible free-standing graphene-TiO2 hybrid paper for use as lithium ion battery anode materials

被引：153

作者：

Hu, Tao ^{[1
,2
]}

Sun, Xiang ^{[1
]}

Sun, Hongtao ^{[1
]}

Yu, Mingpeng ^{[1
]}

Lu, Fengyuan ^{[1
]}

Liu, Changsheng ^{[2
]}

Lian, Jie ^{[1
]}

机构：

[1] Rensselaer Polytech Inst, Dept Mech Aerosp & Nucl Engn, Troy, NY 12180 USA

[2] Northeastern Univ, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110004, Liaoning, Peoples R China

来源：

CARBON | 2013年 / 51卷

关键词：

OXIDE; ELECTRODES; NANOSHEETS; STORAGE;

D O I：

10.1016/j.carbon.2012.08.059

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Flexible and binder-free graphene-TiO2 paper was prepared by a simple route. A unique 3-D nano-structure was achieved with nano-sized TiO2 intercalated between graphene layers as pillars, significantly increasing the Li-ion insertion/extraction rate. At a current rate of 2 Ag-1, the specific capacity can reach 122 mAhg(-1) after 100 charge/discharge cycles. More remarkably, the flexible graphene/TiO2 hybrid paper shows an excellent stability when the rates decrease from 4 Ag-1 back to 200 mAg(-1) with the retained capacity of 175 mAhg(-1). (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：322 / 326

页数：5

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