One-Step Synthesis of Pt/Graphene Composites from Pt Acid Dissolved Ethanol via Microwave Plasma Spray Pyrolysis.
Pt nanoparticles-laden graphene (Pt/GR) composites were synthesized in the gas phase from a mixture of ethanol and Pt precursor by microwave plasma spray pyrolysis. The morphology of Pt/GR composites has the shape of wrinkled sheets of paper, while Pt nanoparticles (Pt NPs) that are less than 2.6 nm in the mean diameter are uniformly well deposited on the surface of GR sheets stacked in only three layers. The Pt/GR composite prepared with 20 wt% of Pt had the highest specific surface area and electrochemical surface area of up to 402 m(2) g(-1) and 77 m(2) g(-1) (Pt), respectively. In addition, the composite showed superior electrocatalytic activity compared with commercial Pt-carbon black. The excellent electrocatalytic activity was attributed to the high specific surface area and electrochemical surface area of the Pt/GR composite directly produced by microwave plasma spray pyrolysis. Thus, it is clearly expected that the Pt/GR composite is a promising material for DMFC catalysts.
Rare Metals Research Division, Korea Institute of Geoscience &Mineral Resources, Deajeon, 34132, Korea.|Department of Nanomaterials Science and Engineering, University of Science &Technology, Deajeon, 34113, Korea.
Eun Hee
EH
Jo
Rare Metals Research Division, Korea Institute of Geoscience &Mineral Resources, Deajeon, 34132, Korea.|Department of Nanomaterials Science and Engineering, University of Science &Technology, Deajeon, 34113, Korea.
Hankwon
H
Chang
Rare Metals Research Division, Korea Institute of Geoscience &Mineral Resources, Deajeon, 34132, Korea.
Sun Kyung
SK
Kim
Rare Metals Research Division, Korea Institute of Geoscience &Mineral Resources, Deajeon, 34132, Korea.
Ji-Hyuk
JH
Choi
Rare Metals Research Division, Korea Institute of Geoscience &Mineral Resources, Deajeon, 34132, Korea.|Department of Nanomaterials Science and Engineering, University of Science &Technology, Deajeon, 34113, Korea.
Su-Ryeon
SR
Park
Rare Metals Research Division, Korea Institute of Geoscience &Mineral Resources, Deajeon, 34132, Korea.|Department of Nanomaterials Science and Engineering, University of Science &Technology, Deajeon, 34113, Korea.
Chong Min
CM
Lee
Rare Metals Research Division, Korea Institute of Geoscience &Mineral Resources, Deajeon, 34132, Korea.|Department of Nanomaterials Science and Engineering, University of Science &Technology, Deajeon, 34113, Korea.
Hee Dong
HD
Jang