We report the development of a silicon nanowire array-stabilized palladium nanoparticle catalyst, SiNA-Pd. Its use in the palladium-catalyzed Mizoroki-Heck reaction, the hydrogenation of an alkene, the hydrogenolysis of nitrobenzene, the hydrosilylation of an α,β-unsaturated ketone, and the C-H bond functionalization reactions of thiophenes and indoles achieved a quantitative production with high reusability. The catalytic activity reached several hundred-mol ppb of palladium, reaching a TON of 2 000 000. An array of reactions: A silicon-nanowire-array-stabilized palladium-nanoparticle catalyst, SiNA-Pd, was designed and used in the palladium-catalyzed Mizoroki-Heck reaction. It can catalyze a variety of other reactions and has a high reusability.
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