Facile synthesis of prickly platinum-palladium core-shell nanocrystals and their boosted electrocatalytic activity towards polyhydric alcohols oxidation and hydrogen evolution

被引：30

作者：

Li, Dong-Ning ^{[1
,2
]}

He, Ya-Mei ^{[1
]}

Feng, Jiu-Ju ^{[1
]}

Zhang, Qian-Li ^{[2
]}

Zhang, Lu ^{[1
]}

Wu, Liang ^{[1
]}

Wang, Ai-Jun ^{[1
]}

机构：

[1] Zhejiang Normal Univ, Coll Geog & Environm Sci, Coll Chem & Life Sci, Key Lab,Minist Educ Adv Catalysis Mat, Jinhua 321004, Peoples R China

[2] Suzhou Univ Sci & Technol, Sch Chem & Biol Engn, Suzhou 215009, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2018年 / 516卷

基金：

中国国家自然科学基金;

关键词：

Core-shell nanostructure; Sodium pyrrolidone carboxylate; Ethylene glycol oxidation; Glycerol oxidation; Hydrogen evolution reaction; REDUCED GRAPHENE OXIDE; OXYGEN REDUCTION; CONTROLLABLE SYNTHESIS; ALLOY NANOPARTICLES; FUEL-CELLS; PD; METAL; NANOSTRUCTURES; CATALYSTS; WATER;

D O I：

10.1016/j.jcis.2018.01.060

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Herein, prickly platinum-palladium core-shell nanocrystals (Pt@Pd NCs) were prepared by a facile one pot aqueous method, only taking sodium pyrrolidone carboxylate (PCA-Na) as the structure director and stabilizing agent. The products were mainly characterized by microscopic analysis, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), followed by discussing the formation mechanism in details. The electrochemical characterizations were examined by cyclic voltammetry (CV), linear sweep voltammetry (LSV) and chronoamperometry (CA). The results revealed that the prepared architectures had the biggest current density (58.4 mA cm(-2)) for ethylene glycol oxidation, which is 3.5-fold, 1.2-fold, 2.3-fold and 2.4-flod enhancement relative to those of home-made single Pt nanoparticles (NPs) and Pd NPs, commercial Pt black and Pd black catalysts, respectively. Also, the obtained Pt@Pd NCs showed improved catalytic activity and stability towards glycerol oxidation and hydrogen evolution reactions compared to the references. (C) 2018 Elsevier Inc. All rights reserved.

引用

页码：476 / 483

页数：8

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