New Synthesis of Pt-Ru Nanoparticles on Surface Modified Carbon Vulcane XC-72 as an Effective Catalyst for Direct Methanol Fuel Cell |
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作者姓名: | Ahmad Nozad Golikand Sajjad Sadaghat Sharehjini Mohammad Yari |
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作者单位: | Islamic Azad University Shahryar Shahr-e-Qod Branch Tehran,Islamic Azad University Shahryar Shahr-e-Qod Branch Tehran,Islamic Azad University Shahryar Shahr-e-Qod Branch Tehran Iran,Iran,Iran |
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摘 要: | 1 Results Pt-Ru nanoparticles are synthesised on the surface oxidized carbon Vulcane XC-72 as catalyst support by chemically anchoring Pt and Ru onto the surface of modified carbon vulcane XC-72 (by refluxing in 70% HNO3 at 120 ℃ for 12 h to introduce surface functional groups) .The nanoparticles of Pt and Ru are synthesized by reduction of H2PtCl6 and K4Ru(CN)6 with sodium borohydride in a 5.5 buffer solution of sodium citrate,the complexation of citrate with metal ions is beneficial to the formation of nanoparticles.The electro-oxidation of liquid methanol as a thin layer of this catalyst on glassy carbon electrode is investigated at room temperature by cyclic voltammetry.The results demonstrate that the prepared catalyst is more active than ordinarily carbon-supported Pt and Pt-Ru catalysts1,2].TEM images and SEM are also carried out.
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