Facile Preparation of Ultralong Dendritic PtIrTe Nanotubes and Their High Electrocatalytic Activity on Methanol Oxidation

被引：38

作者：

Hao, Yanfei ^{[1
]}

Yang, Yunyun ^{[1
]}

Hong, Liji ^{[1
]}

Yuan, Junhua ^{[1
,2
]}

Niu, Li ^{[3
]}

Gui, Yanghai ^{[4
]}

机构：

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

[2] Hubei Univ Sci & Technol, Sch Pharm, Xianning 437100, Hubei, Peoples R China

[3] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China

[4] Zhengzhou Univ Light Ind, Henan Prov Key Lab Surface & Interface Sci, Zhengzhou 450002, Henan, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2014年 / 6卷 / 24期

基金：

中国国家自然科学基金;

关键词：

core-shell; nanotube; methanol oxidation; electrocatalysis; OXYGEN REDUCTION; BIMETALLIC NANOCRYSTALS; PTRU NANOPARTICLES; PLATINUM; NANOWIRES; CATALYSTS; ULTRATHIN; ASSEMBLIES; IR; CO;

D O I：

10.1021/am5047747

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A facile wet chemical approach was developed to prepare ultralong PtIrTe nanotubes (NTs) using Te nanowires (NWs) as template. These PtIrTe NTs were made up of Pt nanodendrites uniformly arrayed on the surface of IrTe NTs and interweaved with each other to nanopores. Their morphology, structure, and composition were investigated by transition electron microscopy, X-ray powder diffraction, and X-ray photoelectron spectroscopy. As expected, these PtIrTe NTs catalysts show a larger surface area, a stronger CO tolerance, and a higher catalytic activity toward electrochemical oxidation of methanol relative to the commercial Pt catalysts due to the 1D porous core-shell structure and the modification of the electronic effect by Ir.

引用

页码：21986 / 21994

页数：9

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