Iminodiacetic acid functionalized MIL-101 supports nano-platinum as
heterogeneous catalyst for hydrosilylation of Alkene
Abstract
The hydrosilylation is one of the largest scale applications for
homogeneous catalysis and is widely used to commercialize silicon
products. However, the development of highly versatile heterogeneous
catalytic systems to efficiently catalyze the hydrosilylation of alkenes
remains a significant challenge. This work used a heat-assisted
impregnation method followed by a mild reduction with sodium borohydride
to will support a catalyst of platinum (Pt/IDA-MIL-101) supported on
amine and carboxyl functionalized Metal-Organic Frameworks (MOFs)
allowing for alkenes hydrosilylation reaction. IDA plays a key role in
forming platinum nanoparticles that are uniform and well dispersed. More
interestingly, IDA changes the pore size of the MIL-101 during the
experiment. The Hydrosilylation experiments of olefins show that the
reaction can effectively catalyze alkenes without solvents. Also, the
synthetic heterogeneous catalyst Pt/IDA-MIL-101 achieves reasonable
utilization of Pt in terms of cycle number and atomic utilization,
demonstrating the potential for achieving a green hydrosilation
industry.