AuPt Nanoparticles Clusters on MWCNTs with Enhanced Electrocatalytic Activity for Methanol Oxidation

被引：8

作者：

Wang, Changzheng ^{[1
]}

Yang, Fengnan ^{[1
]}

Gao, Li ^{[2
]}

Xu, Shoufang ^{[3
]}

Fan, Louzhen ^{[2
]}

Guo, Tao ^{[1
]}

Liu, Yongfeng ^{[1
]}

Zhou, Lian ^{[1
]}

Zhang, Yang ^{[4
]}

机构：

[1] Beijing Univ Civil Engn & Architecture, Beijing Key Lab Funct Mat Bldg Struct & Environm, Beijing 100044, Peoples R China

[2] Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China

[3] Linyi Univ, Sch Mat Sci & Engn, Linyi 276005, Peoples R China

[4] Chinese Acad Sci, Beijing Inst Nanoenergy & Nanosyst, Beijing 100083, Peoples R China

来源：

CATALYSTS | 2018年 / 8卷 / 12期

基金：

中国国家自然科学基金;

关键词：

AuPt nanoparticles clusters; MWCNTs; nanocomposites; electrocatalytic activity; methanol oxidation; FUEL-CELLS DMFCS; OXYGEN REDUCTION; CARBON NANOTUBE; CATALYSTS; POLYMER; ANODE; PERFORMANCE; FABRICATION;

D O I：

10.3390/catal8120669

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：

AuPt nanoparticles clusters (NPCs) were electrodeposited on multiwalled carbon nanotubes (MWCNTs). The as-prepared AuPt NPCs@MWCNTs nanocomposites exhibited considerably enhanced electrocatalytic activity than Pt NPs@MWCNTs for methanol oxidation in acid medium. In comparison with Pt NPs@MWCNTs, a remarkable resistance to CO poisoning and a higher I-f/I-b value (the ratio of the forward scan oxidation peak current (I-f) and reverse scan oxidation peak current (I-b)) was achieved by AuPt NPCs@MWCNTs electrocatalyst, which is attributable to the unique NPCs nanostructure with enlarged electrochemical active surface areas. These results demonstrated the potential of AuPt NPCs@MWCNTs, which can be considered as an efficient electrocatalyst for methanol oxidation in direct methanol fuel cells.

引用

页数：10

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