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Investigation of Electrocatalytic Activity of Pt–Y Alloy Nanoparticles Dispersed on Nitrogen Doped Graphene for Proton Exchange Membrane Fuel Cell

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Reduced graphene oxide (rGO) and nitrogen doped graphene (NG) have been used as a support for decorating the platinum (Pt) and yttrium (Y) alloy (Pt3Y) nanoparticles. Pt3Y nanoparticles decorated graphene (Pt3Y/G) and Pt3Y nanoparticles decorated nitrogen doped graphene (Pt3Y/NG) have been applied as oxygen reduction reaction (ORR) electrocatalysts in proton exchange membrane fuel cells. The electrochemically active surface area has been measured by Cyclic Voltammetry (CV). The ORR activity has been investigated by polarization studies using fuel cell fixture. The enhanced catalytic activity of Pt3Y/NG towards ORR is due to homogeneous dispersion and optimum particle size of Pt3Y alloy nanoparticles over the surface of NG. This study revealed that, Pt3Y/NG is more ORR active than Pt3Y/G.
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Keywords: Electrocatalyst; Nanoparticles; Nitrogen Doped Graphene; Oxygen Reduction Reaction; Platinum Yttrium Alloy; Proton Exchange Membrane Fuel Cells

Document Type: Research Article

Affiliations: Alternative Energy and Nanotechnology Laboratory (AENL), Nano Functional Materials Technology Centre (NFMTC), Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India

Publication date: September 1, 2016

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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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