Please use this identifier to cite or link to this item: https://doi.org/10.1007/s10934-008-9254-3
Title: Catalytic study of MCM-41 immobilized RhCl3 for the hydroformylation of styrene
Authors: He, Y.
Chen, G.
Kawi, S. 
Wong, S.
Keywords: Hydroformylation
MCM-41
Mesoporous
RhCl3
Styrene
Issue Date: Dec-2009
Citation: He, Y., Chen, G., Kawi, S., Wong, S. (2009-12). Catalytic study of MCM-41 immobilized RhCl3 for the hydroformylation of styrene. Journal of Porous Materials 16 (6) : 721-729. ScholarBank@NUS Repository. https://doi.org/10.1007/s10934-008-9254-3
Abstract: RhCl3 was chemically immobilized on mesoporous silicate MCM-41 functionalized by amine or phosphorus organosilane to form heterogeneous catalysts: RhCl3/MCM-41(NH2) and RhCl3/MCM- 41(PPh2). XRD and N2 adsorption-desorption studies illustrated that the functionalized MCM-41 maintained the mesoporous structural ordering, but exhibited reduced pore sizes, total pore volumes and BET surface areas. XPS characterization indicated that chemical interaction between rhodium species of RhCl3 and the surface ligands occurred, and rhodium (III) species were reduced to lower oxidation states. RhCl3/MCM-41(NH 2) was tested to be stable for recycling, however a significant rhodium leakage was observed for RhCl3/MCM-41(PPh2). The catalytic system formed of the prepared RhCl3/MCM-41(NH2) catalyst and additional PPh3 (PPh3/Rh = 2.5) showed very good catalytic activity and high selectivity toward the branched aldehydes in the hydroformylation of styrene. © 2008 Springer Science+Business Media, LLC.
Source Title: Journal of Porous Materials
URI: http://scholarbank.nus.edu.sg/handle/10635/88622
ISSN: 13802224
DOI: 10.1007/s10934-008-9254-3
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