Pt(Cu)/C Electrocatalysts with Low Platinum Content |
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Authors: | A A Alekseenko S V Belenov V S Menshikov V E Guterman |
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Institution: | 1.Faculty of Chemistry,Southern Federal University,Rostov-on-Don,Russia |
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Abstract: | The structure characteristics and the electrochemical behavior of Pt(Cu)/C electrocatalysts synthesized by consecutive deposition of copper and platinum on carbon-support microparticles is studied. The stability and catalytic activity of Pt(Cu)/C materials in reactions of oxygen electroreduction and methanol electrooxidation are assessed and compared with analogous characteristics of a commercial Pt/C material. It is shown that combining the method of galvanic displacement of Cu by Pt with the additional chemical deposition of Pt favors optimization of the structure and functional characteristics of Pt(Cu)/C electrocatalysts. The effect of thermal treatment on the characteristics and properties of electrocatalysts is studied and the optimal conditions of such pretreatment are revealed. |
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