1. Highly enhanced ethanol electrocatalytic activity of PdPb network nanocomposites achieved by a small amount platinum modification.
- Author
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Xiong, Zhiping, Zhang, Ke, Wang, Caiqin, Shiraishi, Yukihide, Guo, Jun, and Du, Yukou
- Subjects
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ETHANOL , *ELECTROCATALYSIS , *PALLADIUM compounds , *LEAD analysis , *NANOCOMPOSITE materials , *PLATINUM , *ELECTROLYTIC oxidation , *FUEL cells - Abstract
In this work, PdPbPt interconnected network type nanoparticles have been fabricated by a facile route, and the as-prepared PdPbPt composites were characterized by transmission electron microscopy (TEM), high-resolution TEM (HRTEM), energy dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS) and electrochemical measurements. It is found that PVP plays an important role in enhancing the dispersion and stability of the catalyst. Moreover, the resultant network Pd 1 Pb 1 Pt 0.027 nanoparticles reveal superior electrocatalytic activity and stability for the ethanol electro-oxidation reaction for comparison with other as-synthesized catalysts, which the anodic peak current density on Pd 1 Pb 1 Pt 0.027 electrode can reach as high as 6936 mA mg −1 , suggesting that Pd 1 Pb 1 Pt 0.027 composite can be a promising catalyst for fuel cells. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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