Cooperation of metals and Brønsted acid sites for hydrodeoxygenation of triglycerides and dehydrogenation of light alkanes was studied. In C-O hydrogenolysis on Ni/H-ZSM-5, Brønsted acid sites are interacting with the carbonyl groups of the substrate, weakening the bond to cleave, thus, enhancing turnover frequencies over Ni. In light alkane dehydrogenation on Ga/H-ZSM-5, Ga+ and Brønsted acid sites act as highly active Lewis-Brønsted acid pairs, on which the C-H bond is heterolytically activated in a bifunctional mechanism. The synergy enhances the rate 300-fold.
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Cooperation of metals and Brønsted acid sites for hydrodeoxygenation of triglycerides and dehydrogenation of light alkanes was studied. In C-O hydrogenolysis on Ni/H-ZSM-5, Brønsted acid sites are interacting with the carbonyl groups of the substrate, weakening the bond to cleave, thus, enhancing turnover frequencies over Ni. In light alkane dehydrogenation on Ga/H-ZSM-5, Ga+ and Brønsted acid sites act as highly active Lewis-Brønsted acid pairs, on which the C-H bond is heterolytically activate...
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