title: General preparation for Pt-based alloy nanoporous nanoparticles as potential nanocatalysts.
abstract: Although Raney nickel made by dealloying has been used as a heterogeneous catalyst in a variety of organic syntheses for more than 80 years, only recently scientists have begun to realize that dealloying can generate nanoporous alloys with extraordinary structural characteristics. Herein, we achieved successful synthesis of a variety of monodisperse alloy nanoporous nanoparticles via a facile chemical dealloying process using nanocrystalline alloys as precursors. The as-prepared alloy nanoporous nanoparticles with large surface area and small pores show superior catalytic properties compared with alloyed nanoparticles. It is believed that these novel alloy nanoporous nanoparticles would open up new opportunities for catalytic applications.
authors.affiliation: Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China.
authors.forename: Dingsheng
authors.initials: D
authors.lastname: Wang
authors.forename: Peng
authors.initials: P
authors.lastname: Zhao
authors.forename: Yadong
authors.initials: Y
authors.lastname: Li
mesh_terms: D002384:Catalysis; D003460:Crystallization / Q000379:methods*; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D010984:Platinum / Q000737:chemistry*; D016062:Porosity; D013499:Surface Properties
chemical_list: D010984:Platinum