Facile synthesis of PdAg nanocatalysts on CeO2/C composite supports as high-performance catalysts toward alkaline ethanol electro-oxidation

被引：8

作者：

Xie, Ayong ^{[1
]}

Zhang, Qing ^{[1
]}

He, Huiqing ^{[1
]}

Peng, Cheng ^{[1
]}

机构：

[1] Huaqiao Univ, Coll Mat Sci & Engn, Xiamen 361021, Peoples R China

来源：

NEW JOURNAL OF CHEMISTRY | 2020年 / 44卷 / 41期

关键词：

HIGH ELECTROCATALYTIC ACTIVITY; OXIDATION REACTION; OXYGEN-REDUCTION; FORMIC-ACID; EFFICIENT ELECTROCATALYSTS; BIMETALLIC CATALYSTS; CARBON NANOTUBES; NI NANOPARTICLES; GRAPHENE OXIDE; ANODE CATALYST;

D O I：

10.1039/d0nj03757e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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/xCeO(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/xCeO(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.

引用

页码：17761 / 17768

页数：8