Amino acid-assisted fabrication of uniform dendrite-like PtAu porous nanoclusters as highly efficient electrocatalyst for methanol oxidation and oxygen reduction reactions

被引：57

作者：

Xie, Xiu-Wen ^{[1
]}

Lv, Jing-Jing ^{[1
]}

Liu, Lei ^{[1
]}

Wang, Ai-Jun ^{[1
]}

Feng, Jiu-Ju ^{[1
]}

Xu, Quan-Qing ^{[2
]}

机构：

[1] Zhejiang Normal Univ, Coll Geog & Environm Sci, Coll Chem & Life Sci, Jinhua 321004, Peoples R China

[2] Yunnan Normal Univ, Fac Chem & Chem Engn, Kunming 650050, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Amino acid; Bimetallic nanoclusters; Electrocatalysis; Methanol oxidation reaction; Oxygen reduction reaction; REDUCED GRAPHENE OXIDE; ONE-POT SYNTHESIS; FACILE SYNTHESIS; ALLOYED NANOFLOWERS; CATALYTIC-ACTIVITY; NANOPARTICLES; ETHANOL; PTPD; NANODENDRITES; NANOCRYSTALS;

D O I：

10.1016/j.ijhydene.2016.11.055

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：

Porous Pt-based bimetallic nanocatalysts receive significant interest in fuel cells. Herein, amino acid-assisted strategy was designed to construct uniform dendrite-like PtAu porous nanoclusters (PtAu PNCs) by a simple wet-chemical method, where L-histidine served as the structure director and poly (vinylpyrrolidone) (PVP) as the dispersing agent. We mainly investigated the structure, composition, formation mechanism and electrocatalytic performance of PtAu PNCs. By virtue of the bimetallic synergetic effects and unique structures, the architectures exhibited enhanced catalytic activity and durability for methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR) in contrast with non-porous PtAu nanocrystals, Au nanocrystals, porous Pt nanoparticles and commercial Pt black catalysts. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：2104 / 2115

页数：12

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