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 350-450°C 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.
A., D., D., D., M. L., G., DI BARTOLOMEO, E., Traversa, E., D., C. (2003). Preparation of sol-gel nano-composites containing copper oxide and their gas sensing properties. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 26(1-3), 1085-1089 [10.1023/A:1020706707243].
Preparation of sol-gel nano-composites containing copper oxide and their gas sensing properties
DI BARTOLOMEO, ELISABETTA;TRAVERSA, ENRICO;
2003-01-01
Abstract
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 350-450°C 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
