Preparation of gold/polyaniline/multiwall carbon nanotube nanocomposites and application in ammonia gas detection

被引：64

作者：

Chang, Qifei ^{[1
,2
]}

Zhao, Kai ^{[1
]}

Chen, Xing ^{[1
]}

Li, Minqiang ^{[1
]}

Liu, Jinhuai ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Intelligent Machines, Key Lab Biomimet Sensing & Adv Robot Technol, Hefei 230031, Anhui, Peoples R China

[2] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2008年 / 43卷 / 17期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1007/s10853-008-2827-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Composites of multiwall carbon nanotubes (MWNTs), polyaniline (PANI), and gold nanoparticles were prepared by one pot synthesis. Based on the interaction between aniline monomers and MWNTs, aniline molecules were adsorbed and polymerized on the surface of MWNTs. The nanocomposites were characterized by transmission electron microscopy (TEM), X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FT-IR), and X-ray photoemission spectroscopy (XPS). The sensors based on Au/PANI/MWNT nanocomposites were tested for on-line monitoring of ammonia gas. The results show that the as-prepared sensors have superior sensitivity, and good repeatability upon repeated exposure to ammonia gas.

引用

页码：5861 / 5866

页数：6

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