TY - JOUR
T1 - The effect of chemical reducing agents in the synthesis of sol-gel Ru-Sn catalysts
T2 - Selective hydrogenation of cinnamaldehyde
AU - Hájek, J.
AU - Mäki-Arvela, P.
AU - Toukoniitty, E.
AU - Kumar, N.
AU - Salmi, T.
AU - Murzin, D. Yu
AU - Červený, L.
AU - Paseka, I.
AU - Laine, E.
N1 - Funding Information:
The authors gratefully acknowledge the support given by the Czech Grant Agency (Grant No. 104/03/0409) and Graduate School of Chemical Engineering of Finland. The presented work is a part of the activities at the Åbo Akademi Process Chemistry Group within the Finnish Centre of Excellence Program financed by Academy of Finland.
Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2004/6
Y1 - 2004/6
N2 - The influence of chemical reduction on the properties of bimetallic Ru-Sn/SiO2 catalyst was studied. Prepared sol-gel catalysts were reduced by NaBH4, KBH4, H2, and CH 2O. Physical and catalytic properties of reduced catalysts were compared to non-reduced ones in the liquid-phase hydrogenation of cinnamaldehyde. The influence of boron impregnation was investigated. The observed hydrogenation activity and selectivity towards cinnamylalcohol were effected by reduction pretreatment. The NaBH4 reduced catalyst exhibited the highest activity and selectivity. Reduction pretreatment influenced the pore sizes, active metal surface as well as content of carbon impurities. Traces of the reduction agents were detected in the catalysts. Boron impregnation presumably improved the catalyst activity, but had a minor effect on the selectivity.
AB - The influence of chemical reduction on the properties of bimetallic Ru-Sn/SiO2 catalyst was studied. Prepared sol-gel catalysts were reduced by NaBH4, KBH4, H2, and CH 2O. Physical and catalytic properties of reduced catalysts were compared to non-reduced ones in the liquid-phase hydrogenation of cinnamaldehyde. The influence of boron impregnation was investigated. The observed hydrogenation activity and selectivity towards cinnamylalcohol were effected by reduction pretreatment. The NaBH4 reduced catalyst exhibited the highest activity and selectivity. Reduction pretreatment influenced the pore sizes, active metal surface as well as content of carbon impurities. Traces of the reduction agents were detected in the catalysts. Boron impregnation presumably improved the catalyst activity, but had a minor effect on the selectivity.
KW - Chemical reduction
KW - Cinnamaldehyde
KW - Cinnamylalcohol
KW - Selective hydrogenation
KW - Sol-gel bimetallic catalyst
UR - http://www.scopus.com/inward/record.url?scp=4444329593&partnerID=8YFLogxK
U2 - 10.1023/B:JSST.0000039504.89972.ee
DO - 10.1023/B:JSST.0000039504.89972.ee
M3 - Article
AN - SCOPUS:4444329593
SN - 0928-0707
VL - 30
SP - 187
EP - 195
JO - Journal of Sol-Gel Science and Technology
JF - Journal of Sol-Gel Science and Technology
IS - 3
ER -