title: One step photochemical synthesis of clean surfaced sponge-like porous platinum with high catalytic performances.
abstract: OBJECTIVE
  Template-free and surfactant-free strategies are highly desirable, which might be used for high efficient platinum catalyst developments.
  
  
  METHODS
  In this work, a facile one step photochemical synthesis method was developed to prepare sponge-like porous platinum. The present synthesis was performed via ultraviolet light irradiation on a K2PtCl4aqueous solution at ambient condition. The final pore sizes were in the range of 1-3nm. The walls of the pores were formed with platinum nanoparticles of 3-5nm average diameters. For comparisons, pluronic F127 was introduced into the reaction solutions as a surfactant, and sponge-like and dendritic-like platinum nanostructures were obtained. The catalytic activities of these platinum nanomaterials were studied with both menthol oxidation and 4-nitrophenol reduction.
  
  
  RESULTS
  The sponge-like platinum synthesized without surfactant exhibited higher catalytic activities than the porous platinum with surfactant and the commercial platinum black.
authors.affiliation: Key Laboratory for Ultrafine Materials of Ministry of Education, and Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, PR China.
authors.forename: Xing
authors.initials: X
authors.lastname: Kong
authors.affiliation: Key Laboratory for Ultrafine Materials of Ministry of Education, and Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, PR China; State Key Laboratory of Bioreactor Engineering, Biomedical Nanotechnology Center, East China University of Science and Technology, Shanghai 200237, PR China. Electronic address: caohl@ecust.edu.cn.
authors.forename: Hongliang
authors.initials: H
authors.lastname: Cao
authors.affiliation: Key Laboratory for Ultrafine Materials of Ministry of Education, and Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, PR China.
authors.forename: Chang
authors.initials: C
authors.lastname: Li
authors.affiliation: Key Laboratory for Ultrafine Materials of Ministry of Education, and Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, PR China; State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, PR China. Electronic address: xinchen73@hotmail.com.
authors.forename: Xin
authors.initials: X
authors.lastname: Chen
keywords: Catalyst; Nanomaterial; Photochemical synthesis; Platinum; Self-assembly