Gas sensing properties of SnO2 nanoparticles mixed with gold nanoparticles

被引：20

作者：

Borhaninia, A. ^{[1
]}

Nikfarjam, A. ^{[1
]}

Salehifar, N. ^{[1
]}

机构：

[1] Univ Tehran, Fac New Sci & Technol, POB 14395-1561, Tehran, Iran

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2017年 / 27卷 / 08期

关键词：

GNP-SnO2; SnO2; nanoparticles; gas sensor; sol-gel; TIN OXIDE NANOPARTICLES; CO; SENSOR; MICROSTRUCTURE; PROPANE;

D O I：

10.1016/S1003-6326(17)60200-0

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

SnO2 nanoparticles mixed with different amounts of gold nanoparticles (GNPs) were synthesized and their CO sensing properties were investigated. The sol-gel method was employed to prepare the initial solution. SEM, TEM, XRD, DLS and spectrophotometry were used to characterize the nanoparticles. The pure sensors showed a response of about 4 to 12.8 for (20-80)x10(-6) CO at operating temperature of 340 degrees C. The response and recovery time at 50x10(-6) Co is about 10 and 14 s, respectively. The amount of GNPs optimized was used to create high performance GNP-SnO2 sensors (m(Au)/m(Sn)=3.7663x10(-4)) and optimal operating temperature was about 260 degrees C and the response at concentrations of (20-80)x10(-6) was 8.3 to 29.5, respectively.

引用

页码：1777 / 1784

页数：8

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