SiC Foams Decorated with SnO2 Nanostructures for Room Temperature Gas Sensing

Anno: 2014

Autori: Karakuscu A., Ponzoni A., Comini E., Sberveglieri G., Vakifahmetoglu C.

Affiliazione autori: University of Brescia, Dept Informat Engn, SENSOR Lab, Brescia, Italy; CNR, INO, Brescia, Italy; Istanbul Kemerburgaz University, Dept Mech Engn, TR-34217 Istanbul, Turkey

Abstract: 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.

Giornale/Rivista: INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY

Volume: 11 (5)      Da Pagina: 851  A: 857

Maggiori informazioni: The author wishes to express sincere appreciation to Prof. Gian Domenico Soraru and his team in University of Trento for the N2 adsorption and desorption data. C. V. gratefully acknowledge the support of TUBITAK (The Scientific and Technological Research Council of Turkey) under the project Grant No. CAYDAG-113Y533.
Parole chiavi: One-dimensional Nanostructures; Polymer-derived Ceramics; Oxide; Nanowires; Growth; No2; Activation; Monoliths; Model
DOI: 10.1111/ijac.12295

Citazioni: 9
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18
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