SiC Foams Decorated with SnO2 Nanostructures for Room Temperature Gas Sensing

被引：9
作者：
Karakuscu, Aylin [1 ,2 ]
Ponzoni, Andrea [1 ,2 ]
Comini, Elisabetta [1 ,2 ]
Sberveglieri, Giorgio [1 ,2 ]
Vakifahmetoglu, Cekdar [3 ]
机构：
[1] Univ Brescia, Dept Informat Engn, SENSOR Lab, Brescia, Italy
[2] CNR, INO, Brescia, Italy
[3] Istanbul Kemerburgaz Univ, Dept Mech Engn, TR-34217 Istanbul, Turkey
来源：
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2014年 / 11卷 / 05期
关键词：
ONE-DIMENSIONAL NANOSTRUCTURES; POLYMER-DERIVED CERAMICS; OXIDE; NANOWIRES; GROWTH; NO2; ACTIVATION; MONOLITHS; MODEL;
D O I：
10.1111/ijac.12295
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Cell walls of the commercial silicon carbide (SiC)-based foams were decorated by one-dimensional tin dioxide (SnO2) nanostructures. Thermal evaporation of SnO2 powder with the assistance of a Au catalyst in inert atmosphere caused the formation of SnO2 nanobelts on the pore surfaces. The room temperature (RT) ammonia (NH3) and nitrogen dioxide (NO2) gas sensing behaviors were investigated systematically in both dry and humid air atmosphere with/without UV activation. The results were compared to those for bare SnO2 and SiC. It was shown that SiC/SnO2 composite was efficient to detect low concentration of NH3 (10-50 ppm) and NO2 (1-5 ppm) under humid air and UV activation at RT.
引用
收藏
页码：851 / 857
页数：7
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