Low temperature CO oxidation kinetics over activated carbon supported Pt-SnOx catalysts
Turkish Journal of Chemistry, cilt.31, sa.5, ss.455-464, 2007 (SCI-Expanded, Scopus, TRDizin)
- Yayın Türü: Makale / Özet
- Cilt numarası: 31 Sayı: 5
- Basım Tarihi: 2007
- Dergi Adı: Turkish Journal of Chemistry
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
- Sayfa Sayıları: ss.455-464
- Anahtar Kelimeler: Activated carbon supports, Carbon monoxide, Kinetics, Oxidation, PROX, Pt-Sn catalysts
- Boğaziçi Üniversitesi Adresli: Evet
Özet
The kinetics of low temperature CO oxidation were studied over sequentially impregnated 1wt%Pt-0.25wt%SnOx supported on HNO3-oxidized activated carbon (AC3) using a wide range of CO (1-10 mol%) and O2 (1-4 mol%) concentrations. Intrinsic kinetic data were obtained in the initial rates region at 383 K in the absence and presence of 5-45 mol% H2 in the feed. A power-function rate expression with positive dependence on CO (0.96) and negative dependence on oxygen (-0.31) was obtained for the low temperature oxidation of CO. The effect of H2 on CO oxidation rates was also investigated under similar conditions. © TÜBİTAK.