title: Novel strategy for preparation of graphene-Pd, Pt composite, and its enhanced electrocatalytic activity for alcohol oxidation.
abstract: As advanced electrodes for direct alcohol fuel cells, graphene-Pd and graphene-Pt composites with a trace of SnO(2) have been successfully synthesized by a modified electroless plating technique. The surface of graphene oxide is first sensitized by Sn(2+) ions, and subsequently, Pd or Pt nanoparticles are deposited on the surface of graphene oxide. Finally, graphene oxide was reduced to graphene by further adding NaBH(4). Compared to other carbon-(e.g., Vulcan XC-72R) supported Pd and Pt, the resultant graphene-Pd and Pt composites exhibit better electrocatalytic activity and long-term stability toward alcohol electrooxidation. Additionally, a trace amount of SnO(2) formed around active catalysts may also be beneficial to the enhancement of electrochemical activity.
authors.affiliation: College of Chemistry, Beijing Normal University, Beijing 100875, P R China.
authors.forename: Lina
authors.initials: L
authors.lastname: Gao
authors.forename: Wenbo
authors.initials: W
authors.lastname: Yue
authors.forename: Shanshan
authors.initials: S
authors.lastname: Tao
authors.forename: Louzhen
authors.initials: L
authors.lastname: Fan
mesh_terms: D000438:Alcohols / Q000737:chemistry*; D002384:Catalysis; D055664:Electrochemical Techniques; D004566:Electrodes; D006108:Graphite / Q000737:chemistry*; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry*; D010316:Particle Size; D010984:Platinum / Q000737:chemistry*; D013499:Surface Properties; D017971:Tin Compounds / Q000138:chemical synthesis / Q000737:chemistry
chemical_list: D000438:Alcohols; D017971:Tin Compounds; D010984:Platinum; D010165:Palladium; D006108:Graphite; C045358:stannic oxide