Seed-mediated synthesis of cross-linked Pt-NiO nanochains for methanol oxidation

被引：31

作者：

Gu, Zhulan ^{[1
]}

Bin, Duan ^{[1
]}

Feng, Yue ^{[1
]}

Zhang, Ke ^{[1
]}

Wang, Jin ^{[1
]}

Yan, Bo ^{[1
]}

Li, Shumin ^{[1
]}

Xiong, Zhiping ^{[1
]}

Wang, Caiqin ^{[1
]}

Shiraishi, Yukihide ^{[1
]}

Du, Yukou ^{[1
]}

机构：

[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2017年 / 411卷

基金：

中国国家自然科学基金;

关键词：

Nanocatalysts; Pt-NiO nanochains; Methanol; Electrocatalytic activity; Fuel cells; HIGH ELECTROCATALYTIC ACTIVITY; ONE-POT SYNTHESIS; FUEL-CELL; EFFICIENT ELECTROCATALYST; CATALYTIC PERFORMANCE; ALKALINE-MEDIUM; ELECTROOXIDATION; GRAPHENE; NANOPARTICLES; ETHANOL;

D O I：

10.1016/j.apsusc.2017.03.190

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：

A simple method was reported for employing NiO nanoparticles act as seeds and then different amounts of Pt2+ were reduced on the NiO nanoparticles, forming a cross-linked Pt-NiO nanocatalysts. These as prepared catalysts were characterized using different physical-chemical techniques, including X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results indicate that the morphology of the cross-linked Pt-NiO nanochain was successfully produced regardless of the molar ratio of Pt2+ to NiO precursors. The electrochemical characteristics of Pt-NiO nanochain catalysts were evaluated for the oxidation of methanol as a model reaction, which verify that the Pt-NiO catalysts show enhanced activity and high stability in comparison with the commercial Pt/C catalyst. The optimized ratio of Pt to NiO is 1:1, then tuned by simple adjusting the feed ratio of the precursors as well. The synthesized nanocatalysts will be found the great potential applications as electrocatalysts for fuel cells owe to their enhanced catalytic performance and long-term stability. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：379 / 385

页数：7

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