Gas Sensing Behavior of Mesoporous SiOC Glasses. Issue 8 (30th July 2013)

• Record Type: Journal Article
• Authors: Karakuscu, Aylin; Ponzoni, Andrea; Aravind, Parakkulam R.; Sberveglieri, Giorgio; Soraru, Gian D.; Kleebe, H.‐J.
• Is Part Of: Journal of the American Ceramic Society. Volume 96:Issue 8(2013)
• Page Start: 2366
• Page End: 2369
• Publication Date: 2013-07-30
• Subjects: Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.12491
• Languages: English
• ISSNs: 0002-7820

Abstract

<abstract abstract-type="main" id="jace12491-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>In this study, for the first time, we report the gas sensing behavior of aerogel‐derived silicon oxycarbide (SiOC) glasses. The SiOC glass pyrolyzed at 1400°C has specific surface area of 150 m²/g with pore size in the 2–20 nm range. SiOC sensor shows good response to 5 ppm NO₂ at 300°C. NO₂ response completely disappears at 400°C, and from this temperature SiOC sensor starts respond to H₂. The optimum sensitivity for H₂ is obtained at 500°C. SiOC sensor is very selective; it is not sensitive to other gases such as acetone vapor or CO, even at high concentrations.</p> </abstract>