Preparation of sol-gel nano-composites containing copper oxide and their gas sensing properties

被引：31
作者：
Dutta, A
Das, D
Grilli, ML
Di Bartolomeo, E
Traversa, E
Chakravorty, D
机构：
[1] Univ Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, INSTM, I-00133 Rome, Italy
[2] Indian Assoc Cultivat Sci, Kolkata 700032, W Bengal, India
来源：
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2003年 / 26卷 / 1-3期
关键词：
nano-composite; copper oxide; gas sensor;
D O I：
10.1023/A:1020706707243
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：
Sol-gel derived composite materials were prepared with nano-sized copper particles in silica matrix. Nano-sized oxide coatings were grown on the nano-particles of copper by subjecting the composites to a controlled oxidation treatment at different temperatures. The current response of samples with oxide layers of different thickness were studied at fixed temperatures in the range 350-450degreesC in the presence of different concentrations of CO and NO2. The nano-composites were sensitive to both the gases. The operating temperature and the oxide thickness were found to have significant effect on the sensing properties.
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收藏
页码：1085 / 1089
页数：5
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