A Fe2O3 nanoparticle/carbon aerogel composite for use as an anode material for lithium ion batteries

被引：63

作者：

Liu, Nianping ^{[1
]}

Shen, Jun ^{[1
]}

Liu, Dong ^{[1
]}

机构：

[1] Tongji Univ, Shanghai Key Lab Special Artificial Microstruct M, Shanghai 200092, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2013年 / 97卷

基金：

中国国家自然科学基金;

关键词：

Carbon aerogel; Sol-gel; Electrochemistry; Anode; Maghemite; GRAPHITE NEGATIVE ELECTRODES; NANOSTRUCTURED MATERIALS; IRREVERSIBLE CAPACITIES; ALPHA-FE2O3; NANORODS; CARBON NANOTUBES; LI; PERFORMANCE; STORAGE; CELLS; INTERCALATION;

D O I：

10.1016/j.electacta.2013.02.111

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A Fe2O3 nanoparticle/carbon aerogel composite (Fe2O3/CA) is prepared from a carbon aerogel prepared by a sol-gel process by a simple soaking in a Fe(NO3)(3) solution and subsequent heat treatment at 600 degrees C. Thermal gravimetric analysis, X-ray diffraction, scanning and transmission electron microscopy, energy dispersive X-ray analysis and X-ray photoelectron spectroscopy are used to characterize the products. The electrochemical performance of samples with different Fe2O3 content is evaluated. The optimal sample Fe2O3/CA-60 exhibits a good capacity retention of 916 and 617 mAh g(-1) for the 1st and 100th cycle, respectively, which is much better than that of pure Fe2O3 and CA. The improved cycling performance, specific capacity and rate capability of Fe2O3/CA is mainly attributed to the synergistic effects of the nanoporous network skeleton of CA and the uniformly dispersed Fe2O3 nanoparticles. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.

引用

页码：271 / 277

页数：7

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