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Synthesis and characterization of catalytic metal semiconductor-doped siliceous materials with ordered structure for chemical sensoring
Department of Materials Chemistry, Al. I. Cuza University of Iasi, Romania.
Laboratory of Adsorption and Catalysis, Department of Chemistry, University of Antwerpen (CDE), Belgien.
Linköping University, Department of Physics, Chemistry and Biology, Applied Sensor Science. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-2817-3574
Department of Materials Chemistry, Al. I. Cuza University of Iasi, Romania.
2013 (English)In: Journal of porous materials, ISSN 1380-2224, E-ISSN 1573-4854, Vol. 20, no 5, 1119-1128 p.Article in journal (Refereed) Published
Abstract [en]

Sensing materials based on doped mesoporous silica of SBA-15 type were obtained by repeated wet impregnation of the solid with semiconductive oxides (Sn and In) and noble metal (Pt). The mesoporous structure of SBA was preserved during the doping and calcination of the solid, although slight pore size narrowing occurred as shown by the BET adsorption analysis. The solid was deposited by the casting technique as a thin layer on a finger structure. The modifications of its electrical resistance values in the presence of hydrogen and propene (50–400 ppm), at temperature values of 450 °C was used as sensing parameter, in the presence of propene and hydrogen. The sensitivity to propene was higher than that to hydrogen.

Place, publisher, year, edition, pages
Springer, 2013. Vol. 20, no 5, 1119-1128 p.
Keyword [en]
SBA-15 doping, Indium oxide, Tin oxide, Platinum, Propene, hydrogen sensing
National Category
Chemical Engineering
URN: urn:nbn:se:liu:diva-92398DOI: 10.1007/s10934-013-9694-2ISI: 000324103300016OAI: diva2:620735
Available from: 2013-05-10 Created: 2013-05-10 Last updated: 2014-01-09Bibliographically approved

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Lloyd Spetz, Anita
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