Synthesis and Formaldehyde Sensing Properties of Pd-Doped SnO2 Nanoparticles

被引：9

作者：

Chen, Ting ^{[1
]}

Mu, Qiuying ^{[1
]}

Zhou, Zhenlai ^{[1
]}

Wang, Yude ^{[1
]}

机构：

[1] Yunnan Univ, Dept Mat Sci & Engn, Kunming 650091, Peoples R China

来源：

SENSOR LETTERS | 2010年 / 8卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Formaldehyde; Pd-Doped SnO2; Nanoparticles; Gas Sensors; Gas Response; NIO THIN-FILM; GAS SENSOR; TIN OXIDE; TEMPERATURE; FABRICATION; SURFACE;

D O I：

10.1166/sl.2010.1254

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The formaldehyde gas sensing characteristics of Pd-doped SnO2 nanoparticles prepared by a surfactant-assisted method were investigated in this paper. The phases of the resulting materials and the morphologies of Pd-doped SnO2 nanoparticles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron micrographs (TEM). The indirect-heating sensors were fabricated using Pd-doped SnO2 nanoparticles as sensitive materials and the gas-sensing characteristics to formaldehyde gas were investigated. The results show that the sensitive material has a high gas sensitivity 80 and a quick response time 60 s to 100 ppm formaldehyde gas, making them to be promising candidates for practical detectors to formaldehyde gas. The sensitive mechanism of sensor was also analyzed and discussed.

引用

页码：238 / 242

页数：5

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