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http://dx.doi.org/10.3740/MRSK.2008.18.8.401

Effect of PVP on the Dispersity of Pt Nanoparticles and Catalytic Activity in Synthesis of Pt/C Catalysts for Fuel Cell  

Leem, Young-Min (Division of Advanced Materials Engineering and Research Centre for Advanced Materials Development, Chonbuk National University)
Park, Nam-Hee (Division of Advanced Materials Engineering and Research Centre for Advanced Materials Development, Chonbuk National University)
Yu, Yeon-Tae (Division of Advanced Materials Engineering and Research Centre for Advanced Materials Development, Chonbuk National University)
Publication Information
Korean Journal of Materials Research / v.18, no.8, 2008 , pp. 401-405 More about this Journal
Abstract
Pt-loaded carbon black for the catalyst of a PEM fuel cell was synthesized with different molar ratios of polyvinylpyrrolidone and $H_2PtCl_6$ solution to improve the dispersion of Pt nanoparticles on carbon black and decrease the size of Pt nanoparticles. From transmission electron microscopy results, Pt nanoparticles of a size of approximately 2 nm were highly dispersed when the polyvinylpyrrolidone concentration was 10mM. The electrochemical activity of the synthesized Pt/C catalysts was investigated by cyclic voltammetry, showing that the as-synthesized Pt-loaded carbon black catalyst had the best activity at a polyvinylpyrrolidone concentration of 10 mM.
Keywords
PEMFC; Pt-loaded carbon black; catalyst; surfactant; PVP;
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