title: Synthesis of Fe3O4 and Pt nanoparticles on reduced graphene oxide and their use as a recyclable catalyst.
abstract: A bifunctional Fe(3)O(4)-Pt/reduced graphene oxide (rGO) composite, i.e. Fe(3)O(4) nanoparticles (~4.8 nm in size) and Pt nanoparticles (~5 nm in size) loaded on a rGO surface, has been synthesized. It shows great catalytic performance for the reduction of methylene blue. Recycling of the composite can be achieved by simply applying an external magnetic field. In addition, the Fe(3)O(4)-Pt/rGO composite exhibits a higher catalytic activity and selectivity for aqueous-phase aerobic oxidation of benzyl alcohol than does the FeO(x)-Pt on carbon nanotubes (i.e. FeO(x)-Pt/CNT composite). Moreover, the approach for the synthesis of Fe(3)O(4)-Pt/rGO composite is simple, and can be widely employed to produce other rGO-based composites with special properties. Our work indicates that the rGO-based bifunctional composite has great potential for practical applications in various fields, such as catalytic reaction, electrochemical sensing, clean energy, etc.
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
authors.forename: Shixin
authors.initials: S
authors.lastname: Wu
authors.forename: Qiyuan
authors.initials: Q
authors.lastname: He
authors.forename: Chunmei
authors.initials: C
authors.lastname: Zhou
authors.forename: Xiaoying
authors.initials: X
authors.lastname: Qi
authors.forename: Xiao
authors.initials: X
authors.lastname: Huang
authors.forename: Zongyou
authors.initials: Z
authors.lastname: Yin
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Yang
authors.forename: Hua
authors.initials: H
authors.lastname: Zhang
mesh_terms: D002384:Catalysis; D004563:Electrochemistry; D017743:Equipment Reuse; D005290:Ferric Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry* / Q000378:metabolism; D058185:Magnetite Nanoparticles / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry*; D055616:Microtechnology / Q000379:methods; D008954:Models, Biological; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry; D010316:Particle Size; D010984:Platinum / Q000737:chemistry*
chemical_list: D005290:Ferric Compounds; D058185:Magnetite Nanoparticles; D010087:Oxides; C000499:ferric oxide; D010984:Platinum; D006108:Graphite