High activity of Au–Cu/C electrocatalyst as anodic catalyst for direct borohydride-hydrogen peroxide fuel cell
| Autor: | Wei Yi, Yunfeng Song, Xue Liu, Peiying He, Lanhua Yi, Guishan Zou, Xianyou Wang |
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| Rok vydání: | 2011 |
| Předmět: |
Aqueous solution
Renewable Energy Sustainability and the Environment Chemistry Inorganic chemistry Energy Engineering and Power Technology Chronoamperometry Condensed Matter Physics Borohydride Electrocatalyst Catalysis chemistry.chemical_compound Fuel Technology Cyclic voltammetry Hydrogen peroxide Bimetallic strip |
| Zdroj: | International Journal of Hydrogen Energy. 36:15775-15782 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2011.09.019 |
| Popis: | Carbon supported Au–Cu bimetallic nanoparticles are prepared by a modified NaBH 4 reduction method in aqueous solution at room temperature. The electrocatalytic activities of the Au–Cu/C catalysts are investigated by cyclic voltammetry, chronoamperometry, chronopotentiometry and fuel cell experiments. It has been found that the Au–Cu/C catalysts have much higher catalytic activity for the direct oxidation of BH 4 − than Au/C catalyst. Especially, the Au 67 Cu 33 /C catalyst presents the highest catalytic activity for BH 4 − electrooxidation among all as-prepared catalysts, and the DBHFC using Au 67 Cu 33 /C anode catalyst and Au/C cathode catalyst shows the maximum power density of 51.8 mW cm −2 at 69.5 mA cm −2 and 20 °C. |
| Databáze: | OpenAIRE |
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