SiC Foams Decorated with SnO2 Nanostructures for Room Temperature Gas Sensing. Issue 5 (1st August 2014)

• Record Type: Journal Article
• Authors: Karakuscu, Aylin; Ponzoni, Andrea; Comini, Elisabetta; Sberveglieri, Giorgio; Vakifahmetoglu, Cekdar
• Is Part Of: International journal of applied ceramic technology. Volume 11:Issue 5(2014:Sep./Oct.)
• Page Start: 851
• Page End: 857
• Publication Date: 2014-08-01
• Subjects: Ceramics -- Periodicals; Ceramics -- Technological innovations -- Periodicals; 620.1405
• DOI: 10.1111/ijac.12295
• Languages: English
• ISSNs: 1546-542X

Abstract

<abstract abstract-type="main" id="ijac12295-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>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.</p> </abstract>