文献类型：期刊文献

英文题名：Synthesis and characterization of new mesoporous material with conducting polypyrrole confined in mesoporous silica

作者：Cheng, Qilin[1,2]; Pavlinek, Vladimir[2]; Li, Chunzhong[1]; Lengalova, Anezka[3]; He, Ying[1]; Saha, Petr[2]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]Tomas Bata Univ, Fac Technol, Ctr Polymer, Zlin 76272, Czech Republic;[3]Tomas Bata Univ, Univ Inst, Zlin 76272, Czech Republic

年份：2006

卷号：98

期号：2-3

起止页码：504

外文期刊名：MATERIALS CHEMISTRY AND PHYSICS

收录：;EI(收录号：2006209885740);WOS:【SCI-EXPANDED(收录号:WOS:000238298100059)】；

语种：英文

外文关键词：conducting polymer; polypyrrole; mesoporous silica; nanocomposite; synthesis

摘要：A new nanocomposite, semiconducting polypyrrole (PPy) confined in mesoporous silica (MCM-41) has been synthesized. PPy was formed in the pores of MCM-41 by adsorption of pyrrole gas and subsequent oxidative polymerization with (FeCl36H2O)-H-.. Different techniques were used to characterize the nanocomposite formation. X-ray diffraction (XRD) and N-2 adsorption/desorption analysis show that the nanocomposite possesses mesoporous structure, and the residual pore volume of nanocomposite is significantly lower than that of pure empty MCM-41. FTIR spectra, high resolution transmission electron micrographs and electrical conductivity measurements confirmed the presence of polypyrrole inside pore channels of the host, and thermogravimetric analysis proved confinement effect in the channel system. (c) 2005 Elsevier B.V. All rights reserved.