Cerium dioxide/polyaniline core-shell nanocomposites

被引：75

作者：

Chuang, Feng-Yi ^{[1
]}

Yang, Sze-Ming ^{[1
]}

机构：

[1] Natl Cent Univ, Dept Chem & Mat Engn, Jhongli, Taiwan

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2008年 / 320卷 / 01期

关键词：

cerium dioxide; polyaniline; core-shell nanocomposites;

D O I：

10.1016/j.jcis.2008.01.015

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：

The preparation of CeO2/polyaniline (CeO2/PANI) core-shell nanocomposites via chemical oxidation of aniline using CeO2 as an oxidant is reported. TEM, TGA, FT-IR, XPS, and conductivity measurement are used to characterize the resulting composites. TEM measurements reveal that the shape of PANI/CeO2 nanocomposites is different from CeO2 nanoparticles and fibular PANI oxidized with soluble oxidant. Electron diffraction (ED) patterns of CeO2/PANI nanocomposites reveal single crystal of CeO2. Fr-IR spectra confirmed the formation of PANI; the amount of PANI in the nanocomposites is estimated by TGA results. The conductivities increase with the increasing ratio of PANI/CeO2. XPS results reveal that in the nanocomposites Ce4+ of CeO2 is reduced to Ce3+. In addition, the degree of protonation of polyaniline obtained from N-1s XPS results in cerium dioxide/polyaniline composites is about 48.52%. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：194 / 201

页数：8

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