1. Carbon supported ultrafine gold phosphorus nanoparticles as highly efficient electrocatalyst for alkaline ethanol oxidation reaction.
- Author
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Li, Tongfei, Fu, Gengtao, Su, Jiahui, Wang, Yi, Lv, Yinjie, Zou, Xiuyong, Zhu, Xiaoshu, Xu, Lin, Sun, Dongmei, and Tang, Yawen
- Subjects
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CARBON nanotubes , *PHOSPHORUS , *GOLD nanoparticles , *ELECTROCATALYSTS , *ETHANOL , *REDOX polymers , *OXIDATION-reduction reaction , *GOLD catalysts - Abstract
Herein, we develop a new kind of carbon supported gold-phosphorus (Au-P/C) electrocatalyst for the alkaline ethanol oxidation reaction (EOR). The Au-P/C catalysts with different Au/P ratio (i.e., AuP/C, Au 3 P 2 /C and Au 4 P 3 /C) can be obtained by a facile and novel hot-reflux method with white phosphorus (P 4 ) as reductant and ethanol as solvent. The crystal structure, composition and particle-size of the Au-P/C catalysts are investigated by X-ray diffraction (XRD), Energy Dispersive Spectrometer (EDS), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS), etc. The results demonstrate that Au-P/C catalysts present an alloy phase with the high content of P, ultrafine particle-size and high dispersity on carbon support, which results in excellent electrocatalytic activity and stability towards the EOR compared with that of the free-phosphorus Au/C catalyst. In addition, among the various Au-P/C catalysts with different Au/P ratio, the AuP/C sample exhibits the best electrocatalytic performance in comparison with other Au 3 P 2 /C and Au 4 P 3 /C samples. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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