Polypyrrole-Coated SnO2 Hollow Spheres and Their Application for Ammonia Sensor

被引：218

作者：

Zhang, Jun ^{[1
]}

Wang, Shurong ^{[1
]}

Xu, Mijuan ^{[1
]}

Wang, Yan ^{[1
]}

Xia, Huijuan ^{[1
]}

Zhang, Shoumin ^{[1
]}

Guo, Xianzhi ^{[1
]}

Wu, Shihua ^{[1
]}

机构：

[1] Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 05期

基金：

中国国家自然科学基金;

关键词：

CONDUCTING POLYMERS; GAS; NANOSTRUCTURES; POLYMERIZATION; NANOCOMPOSITE; TEMPLATES; ARRAYS; TIO2;

D O I：

10.1021/jp8096633

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：

Polypyrrole-coated SnO2 hollow spheres hybrid materials have been synthesized through an in situ polymerization of pyrrole monomers in the presence of preprepared SnO2 hollow spheres. The hybrids were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectrometer (FTIR), and thermogravimetric analysis (TG). Experimental data showed certain synergetic interaction existed in the hybrids, probably resulting in the enhanced thermal stability of polypyrrole coatings. Gas sensing tests showed that the hybrids possessed very fast response and high sensitivity to ammonia gas at room temperature, implying its potential application for gas sensors.

引用

页码：1662 / 1665

页数：4

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