One-step synthesis of Pt@ZIF-8 catalyst for the selective hydrogenation of 1,4-butynediol to 1,4-butenediol

A catalyst consisting of platinum nanoparticles on a ZIF-8 support (Pt@ZIF-8) was synthesized in a straightforward one-step procedure, by adding a nanostructured platinum sol during the formation of ZIF-8 at room temperature. Pt@ZIF-8 was highly porous and well crystallized. The Pt nanoparticles were well dispersed within the ZIF-8 support. In the hydrogenation of 1,4-butynediol, Pt@ZIF-8 exhibited high activity, excellent selectivity for 1,4-butenediol of greater than 94%, and reusability. The Pt@ZIF-8 catalyst did not require further additives. The favorable catalytic performance was attributed primarily to the modification of the ZIF-8 support by the platinum nanoparticles. Pt@ZIF-8 was synthesized by a one-step method, and applied in the hydrogenation of 2-butyne-1,4-diol to 2-butene-1,4-diol, exhibiting high activity, selectivity, and absolute reusability.