Anagha Hunoor, Snehal Patil, Emily Naughton, James Nana Gyamfi, Chidimma Maryjane Nwankwor, Dr. Dan Conroy, Tanay Jawdekar, Dr. Seval Gunduz, Dr. Paul L. Edmiston, Dr. Umit S. Ozkan
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引用次数: 0
Abstract
In this work, bridged polysilsesquioxanes with varying aromatic content were used as catalyst supports with active metal palladium (Pd) for aqueous phase phenol hydrogenation. Alkoxysilane precursors, bis (trimethoxy silyl ethyl) benzene (BTEB), and bis (trimethoxy silyl) ethane (BTE) were co-condensed by sol-gel synthesis to vary the aromatic content of the support. Pd supported on aryl-bridged polysilsesquioxane (ABPS) showed the highest phenol conversion, while its non-aromatic counterpart (Pd/ethylene-bridged polysilsesquioxane (EBPS)) exhibited the lowest catalytic activity. Aromatic groups were responsible for better Pd dispersion and phenol adsorption. Thermal stability and structural integrity of the organosilica supports were also enhanced due to aromatic groups within the organosilica matrix.
期刊介绍：
With an impact factor of 4.495 (2018), ChemCatChem is one of the premier journals in the field of catalysis. The journal provides primary research papers and critical secondary information on heterogeneous, homogeneous and bio- and nanocatalysis. The journal is well placed to strengthen cross-communication within between these communities. Its authors and readers come from academia, the chemical industry, and government laboratories across the world. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies, and is supported by the German Catalysis Society.
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