Sandwich-Like, Graphene-Based Titania Nanosheets with High Surface Area for Fast Lithium Storage

被引：491

作者：

Yang, Shubin ^{[1
]}

Feng, Xinliang ^{[1
]}

Muellen, Klaus ^{[1
]}

机构：

[1] Max Planck Inst Polymer Res, D-55128 Mainz, Germany

来源：

ADVANCED MATERIALS | 2011年 / 23卷 / 31期

关键词：

PERFORMANCE ANODE MATERIALS; ION BATTERIES; TIO2; ANATASE; FABRICATION; MICROSTRUCTURES; ELECTROACTIVITY; COMPOSITES; ELECTRODES; EFFICIENT; INSERTION;

D O I：

10.1002/adma.201101599

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Sandwich-like, graphene-based mesoporous titania (G-TiO2) nanosheets possess thin thickness, large aspect ratio, and mesoporous structure and show enhanced electrical conductivity. Such unique features provide numerous open channels for the access of electrolyte and facilitate the fast diffusion of lithium ions during the cycling processes. The graphene layer within each nanosheet can act as a mini-current collector, which is favorable for the fast electron transport in the electrode. As a consequence, G-TiO2 nanosheets exhibit a ultrahigh rate capability and excellent cycle performance, holding great potential as a high-rate anode material for lithium storage.

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页码：3575 / +

页数：6

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