Binder-free, self-standing films of iron oxide nanoparticles deposited on ionic liquid functionalized carbon nanotubes for lithium-ion battery anodes

被引：17

作者：

Bak, Bo Mee ^{[1
]}

Kim, Sung-Kon ^{[1
]}

Park, Ho Seok ^{[1
]}

机构：

[1] Kyung Hee Univ, Coll Engn, Dept Chem Engn, Yongin 446701, Gyeonggi Do, South Korea

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2014年 / 144卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

Composite materials; Nanostructures; Oxides; Electrochemical properties; STORAGE CAPABILITY; PERFORMANCE; COMPOSITE; ELECTRODE; CAPACITY; NANORODS; PARTICLES;

D O I：

10.1016/j.matchemphys.2014.01.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report in-situ synthesis and direct deposition of Fe2O3 nanoparticles (NPs) on the ionic liquid (IL)-functionalized carbon nanotubes (fCNT). As shown in transmission electron microscope (TEM) and scanning TEM (STEM) images, Fe2O3 NPs with the diameter of 3-5 nm are randomly distributed on the sidewall of fCNT, revealing the nanocrystalline structure. The chemical identity and interaction of the fCNT/Fe2O3 composite are investigated by FT-IR, Raman and XPS analyses. In particular, the fCNT/Fe2O3 composite is solution-processable in a form of binder free and self-standing film. Such a free-standing electrode film based on the fCNT/Fe2O3 composite achieve the discharge capacity of 413 mAh g(-1) which is much greater than 34 mAh g(-1) of the CNT and 191 mAh g(-1) of the fCNT due to the redox reaction of Fe2O3 NPs. Moreover, the fCNT/Fe2O3 composite show the coulombic efficiency of 98% and the capacity fading from 272 mAh g(-1) to 182 mAh g(-1) after 50 cycles of charge/discharge. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：396 / 401

页数：6

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