Nickel phosphide nanocatalysts for the chemoselective hydrogenation of alkynes

作者：Carenco Sophie; Leyva Perez Antonio; Concepcion Patricia; Boissiere Cedric; Mezailles Nicolas^*; Sanchez Clement; Corma Avelino

来源：Nano Today, 2012, 7(1): 21-28.

DOI：10.1016/j.nantod.2011.12.003

• Nanocatalysis
• Chemoselective hydrogenation
• Nickel phosphide
• Alkynes hydrogenation
• Core-shell nanoparticles

Well-defined 25 nm nickel phosphide nanoparticles act as a colloidal catalyst for the chemoselective hydrogenation of terminal and internal alkynes. Cis-alkenes are obtained in mild conditions with good conversion and selectivity. The phosphorus inserted in the Ni-P nanoparticles is critical for the selectivity of the nanocatalyst. Mechanistic investigations using isotope labeling provide insight on the reactants interaction with the nanoparticles surface. They pinpoint the occurrence of C-H bond cleavage in terminal alkynes during the reaction.

• 出版日期2012-2