title: Catalytic properties of carboxylic acid functionalized-polymer microsphere-stabilized gold metallic colloids.
abstract: Polymer-microsphere-stabilized gold metallic colloids have been prepared by a novel strategy of simple and convenient reduction of the metallic salt through the stabilization of the active carboxylic acid group on the gel and surface layer of the microsphere. The nature of the interaction between the carboxylic acid and Au nanoparticles was studied in detail by XPS. Preliminary results indicate that polymer-microsphere-stabilized gold colloids are active catalysts for the reduction of 4-nitrophenol to 4-aminophenol with sodium borohydride as reductant. The catalytic properties of the stabilized catalyst for recycling were also investigated.
authors.affiliation: Key Laboratory of Functional Polymer Materials, the Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.forename: Xinlin
authors.initials: X
authors.lastname: Yang
authors.forename: Wenqiang
authors.initials: W
authors.lastname: Huang
mesh_terms: D000327:Adsorption; D000627:Aminophenols / Q000138:chemical synthesis / Q000737:chemistry; D002264:Carboxylic Acids / Q000737:chemistry*; D002384:Catalysis; D003102:Colloids; D006046:Gold / Q000737:chemistry*; D008863:Microspheres; D009596:Nitrophenols / Q000737:chemistry; D010084:Oxidation-Reduction; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D013053:Spectrophotometry; D013499:Surface Properties; D014867:Water / Q000737:chemistry; D014965:X-Rays
chemical_list: D000627:Aminophenols; D002264:Carboxylic Acids; D003102:Colloids; D009596:Nitrophenols; D011108:Polymers; D014867:Water; D006046:Gold; C026729:4-aminophenol; C024836:4-nitrophenol