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Study on Effect of Carbon Surface Functionalization on Reduced Graphene Oxide Electrodes for Fuel Cells

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Pt-deposited reduced graphene oxide (RGO) was prepared by a facile method with presence of dopamine hydrochloride in Tris-HCl buffer solution. The electrochemical and morphological property of Pt/(polydopamine (PDA) coated RGO) composite was studied by cyclic voltammetry (CV), field emission scanning electron microscopy (FE-SEM), transmission electron microscope (TEM) and fourier transform infrared spectroscopy (FT-IR). These results show that Pt/PDA/RGO hybrids exhibited not only excellent electrocatalytic active but also long-term stability for the oxidation of methanol in direct methanol fuel cells. In addition, platinum nanoparticles were deposited on the surface of the modified RGO without aggregation of metal catalyst compared to pure graphene oxide. These findings indicated that synthesized Pt/PDA/RGO could be promising candidate for catalyst electrodes in many different kinds of fuel cells.
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Keywords: Catalyst; Dopamine Hydrochloride; Fuel Cell; Platinum; Reduced Graphene Oxide

Document Type: Research Article

Affiliations: 1: School of Chemical and Biochemical Engineering, Pusan National University, San 30, Jangjeon-dong, Geumjeong-gu, Pusan 609-735, South Korea 2: Department of Chemical Engineering, Korea University of Technology and Education, Cheonan-si, Chungnam-do, 330-708, South Korea

Publication date: August 1, 2017

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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