Journal
JOURNAL OF CATALYSIS
Volume 257, Issue 1, Pages 23-31Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2008.04.002
Keywords
dendritic catalysts; dendrimer; hydroformylation; SBA-15; HRh(CO)(PPh3)(3); styrene
Categories
Ask authors/readers for more resources
Dendritic SBA-15 supported HRh(CO)(PPh3)(3) catalysts were designed for liquid-phase hydrol styrene. The silanolls outside SBA-15 channels were passivated so that HRh(CO)(PPh3)(3) complexes could be anchored mostly inside the SBA-15 channels. After passivation, PAMAM (polyamdoamine) dendrimers up to second generation were then grown inside the SBA-15 channels. Both pore size and dendrimer generation were found to influence the performance of catalysts for styrene hydroformylation, and the second-generation PAIVIAM was found to be optimal for these passivated dendritic SBA-15-supported rhodium catalysts. To study the effect of tethering HRh(CO)(PPh3)(3) inside and outside SBA-15 mesopore we also studied SBA-15-supported catalyst analogs with no passivation of external silanols. The channels, passivated SBA-15 supported rhodium catalysts demonstrated an increase in catalytic activity and stability when the generation of supported dendrimer was increased from zeroth to second generation. (c) 2008 Published by Elsevier Inc.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available