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Properties of platinum-containing glass-fiber catalysts in the SO2 oxidation reaction. / Vanag, S. V.; Paukshtis, E. A.; Zagoruiko, A. N.
в: Reaction Kinetics, Mechanisms and Catalysis, Том 116, № 1, 10.2015, стр. 147-158.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Properties of platinum-containing glass-fiber catalysts in the SO2 oxidation reaction
AU - Vanag, S. V.
AU - Paukshtis, E. A.
AU - Zagoruiko, A. N.
PY - 2015/10
Y1 - 2015/10
N2 - SO2 oxidation catalysts containing small amounts (0.01–0.03 mass%) of platinum at the zirconia-promoted silica glass fibers (Pt-GFCs) demonstrate relatively high activity at moderate temperatures (below 400 °C) and the appropriate thermal stability (up to 700 °C). The catalytic activity of Pt-GFC in the SO2 oxidation reaction is provided by the small (< 1 nm) partially charged platinum clusters, while platinum in a form of large metal particles is practically inactive. Pt-GFCs have the high (up to ~20 mass%) sorption capacity with respect to SO2. Such sorption occurs via the interaction of SO2 with oxygen, either present in the gaseous reaction mixture or pre-adsorbed in the fresh GFC structure, with the possible formation of the intermediate sulfates in the glass bulk of the catalyst. Besides, Pt-GFC may effectively oxidize CO in the presence of significant amounts of sulfur dioxide.
AB - SO2 oxidation catalysts containing small amounts (0.01–0.03 mass%) of platinum at the zirconia-promoted silica glass fibers (Pt-GFCs) demonstrate relatively high activity at moderate temperatures (below 400 °C) and the appropriate thermal stability (up to 700 °C). The catalytic activity of Pt-GFC in the SO2 oxidation reaction is provided by the small (< 1 nm) partially charged platinum clusters, while platinum in a form of large metal particles is practically inactive. Pt-GFCs have the high (up to ~20 mass%) sorption capacity with respect to SO2. Such sorption occurs via the interaction of SO2 with oxygen, either present in the gaseous reaction mixture or pre-adsorbed in the fresh GFC structure, with the possible formation of the intermediate sulfates in the glass bulk of the catalyst. Besides, Pt-GFC may effectively oxidize CO in the presence of significant amounts of sulfur dioxide.
KW - Carbon monoxide
KW - Catalytic oxidation
KW - Glass-fiber catalyst
KW - Platinum
KW - Sulfur dioxide
UR - http://www.scopus.com/inward/record.url?scp=84928395002&partnerID=8YFLogxK
U2 - 10.1007/s11144-015-0875-7
DO - 10.1007/s11144-015-0875-7
M3 - Article
AN - SCOPUS:84928395002
VL - 116
SP - 147
EP - 158
JO - Reaction Kinetics, Mechanisms and Catalysis
JF - Reaction Kinetics, Mechanisms and Catalysis
SN - 1878-5190
IS - 1
ER -
ID: 10352188