Facile synthesis of PdAg nanocatalysts on CeO 2 /C composite supports as high-performance catalysts toward alkaline ethanol electro-oxidation

Direct alkaline ethanol fuel cells (DAEFCs) have attracted great attention as one of the most promising portable energy systems. In this work, we report a novel and facile method to prepare PdAg/ x CeO 2 /C hybrid nanostructured anode catalysts without reducing agents or surfactants. The microstruct...

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Bibliographic Details
Published in:New journal of chemistry 2020-10, Vol.44 (41), p.17761-17768
Main Authors: Xie, Ayong, Zhang, Qing, He, Huiqing, Peng, Cheng
Format: Article
Language:English
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Summary:Direct alkaline ethanol fuel cells (DAEFCs) have attracted great attention as one of the most promising portable energy systems. In this work, we report a novel and facile method to prepare PdAg/ x CeO 2 /C hybrid nanostructured anode catalysts without reducing agents or surfactants. The microstructure and morphology of the as-synthesized nanocatalysts were investigated by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM) and X-ray photon spectroscopy (XPS) techniques. Furthermore, the electrochemical performance of the resultant catalysts was studied using cyclic voltammetry (CV) and chronoamperometry (CA) measurements. Among the different compositions of PdAg/ x CeO 2 /C catalysts, PdAg/30CeO 2 /C showed the highest performance for ethanol electro-oxidation reaction (EOR) in the alkaline medium. Such an excellent performance for the EOR indicates that the as-synthesized PdAg/30CeO 2 /C catalyst could be potentially used as a high performance anode catalyst in DAEFCs.
ISSN:1144-0546
1369-9261
DOI:10.1039/D0NJ03757E