Novel Synthesis of Well-Dispersive Pt/Graphene Cathode Electrocatalyst for Direct Methanol Fuel Cell

Yu Hong Zhou; Ye Li; Li Teng Ren

doi:10.4028/www.scientific.net/AMR.953-954.961

Paper Titles

Computational Fluid Dynamics Study on the High Temperature Proton Exchange Membrane Fuel Cell
p.939

Operation for Bio-Hydrogen Production of CSTR with Integration of Immobilized and Suspended Cell Process
p.949

Electrocatalytic Property of Potassium Tantalate Film Coated Electrode
p.953

Embedding TiO₂ Nanopowder in Anode Catalyst Layers to Fabricate Self-Humidifying Proton Exchange Membrane Fuel Cells
p.957

Novel Synthesis of Well-Dispersive Pt/Graphene Cathode Electrocatalyst for Direct Methanol Fuel Cell
p.961

Review of Hydrogen Production from the Steam-Iron Process by Chemical-Looping Combustion
p.966

Continuous Hydrogen Production in a Novel Photo-Bioreactor with High Light Conversion Efficiency
p.970

Detailed Characteristic Comparison between PEN of Planar SOFC Prepared by APS and SPS
p.974

Hydrogenation Kinetics of N-Ethylcarbaozle as a Heteroaromatic Liquid Organic Hydrogen Carrier
p.981

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 953-954Novel Synthesis of Well-Dispersive Pt/Graphene...

Novel Synthesis of Well-Dispersive Pt/Graphene Cathode Electrocatalyst for Direct Methanol Fuel Cell

Abstract:

Uniform Pt nanoparticles dispersing on graphene was successfully prepared by using ethylene glycol solution (EG) as the reduction angent, H₂PtCl₆ and the thermal expanded graphite oxide (TGO) as the precursor, under the condition of microwave irradiation. The as-made catalyst is very “clean” because of the dispersant-free formation process. The catalyst was investigated by XRD, FT-IR, TEM and CHI electrochimical analysis instrument. TEM image shows that the Pt particle size is in the range of 2~6 nm with a peak at 3.8 nm. Rotating disk electrode (RDE) cathodic curve shows that Pt/graphene catalyst exhibits similar oxygen reduction reaction (ORR) activity (half wave potential :0.65V) compared to commercial Pt/C (20%) catalysts (0.66V). And the current-time curve shows that the in-house Pt/graphene catalyst possess better electrocatalytic stability than a commercial Pt/C catalyst in 0.5M H₂SO₄ in our experiment.