title: Pd cluster nanowires as highly efficient catalysts for selective hydrogenation reactions.
abstract: Palladium is a key catalyst invaluable to many industrial processes and fine-chemical synthesis. Although recent progress has allowed the synthesis of Pd nanoparticles with various shapes by using different techniques, the facile synthesis of Pd nanocrystals and turning them into a highly active, selective, and stable catalyst systems still remain challenging. Herein, we report the highly selective one-pot synthesis of monodisperse Pd cluster nanowires in aqueous solution; these consist of interconnected nanoparticles and may serve as highly active catalysts because of the enrichment of high index facets on the surface, including {443}, {331}, and {221} steps. For the first time, carbon nanotube and γ-Al(2)O(3) immobilized Pd cluster nanowires showed highly enhanced catalytic performance in the liquid-phase selective hydrogenation of cinnamaldehyde and gas-phase hydrogenation of 1,3butadiene relative to immobilized Pd icosahedra and nanocubes, as well as commercial Pd catalysts.
authors.affiliation: Department of Chemistry, Tsinghua University, Beijing 100084, PR China.
authors.forename: Zhi-Cheng
authors.initials: ZC
authors.lastname: Zhang
authors.forename: Xin
authors.initials: X
authors.lastname: Zhang
authors.forename: Qi-Yu
authors.initials: QY
authors.lastname: Yu
authors.forename: Zhi-Chang
authors.initials: ZC
authors.lastname: Liu
authors.forename: Chun-Ming
authors.initials: CM
authors.lastname: Xu
authors.forename: Jin-Sen
authors.initials: JS
authors.lastname: Gao
authors.forename: Jing
authors.initials: J
authors.lastname: Zhuang
authors.forename: Xun
authors.initials: X
authors.lastname: Wang
mesh_terms: D002384:Catalysis; D006865:Hydrogenation; D053758:Nanoparticles / Q000737:chemistry*; D036103:Nanotechnology; D053770:Nanowires / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D010165:Palladium