Binary-surfactant (Brij 35 + Tween 20) assisted preparation of highly dispersed Pt nanoparticles on carbon |
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| Authors: | Dong-Ha Lim Lianhai Lu Dong Baek Kim Dong-Hyeok Choi Dal-Ryung Park Ho-In Lee |
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| Institution: | (1) School of Chemical and Biological Engineering and Research Center for Energy Conversion and Storage, Seoul National University, Seoul, 151-744, Korea;(2) Center for Gas Utilization Technology, KOGAS R&D Center, Ansan, Kyunggi, 425-150, Korea |
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| Abstract: | Pt nanoparticles supported on Vulcan XC-72R, synthesized by a surfactant-stabilized colloidal method, exhibited excellent
properties as anode catalyst for low-temperature fuel cell. The Pt/C catalyst prepared with binary-surfactant (Brij 35 + Tween
20) at 10 times CMC had an average particle size of 2.8 nm with quite a narrow distribution between 2 and 4 nm. Our preparation
method resulted in complete reduction of Pt and full loading of Pt nanoparticles on the carbon. The home-made Pt/C catalyst
showed higher EAS and better catalytic activity than a commercial Pt/C catalyst. The method used in this study provided an
easy and reproducible procedure for the preparation of Pt nanoparticles supported on carbon. |
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| Keywords: | Binary-surfactant Brij 35 Tween 20 Nano Pt/C Colloidal method Composite nanomaterials |
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