Controlled Synthesis of Au-Island-Covered Pd Nanotubes with Abundant Heterojunction Interfaces for Enhanced Electrooxidation of Alcohol

被引：33

作者：

Cai, Kai ^{[1
]}

Liao, Yuxiang ^{[2
]}

Zhang, Huan ^{[1
]}

Liu, Jiawei ^{[1
]}

Lu, Zhicheng ^{[1
]}

Huang, Zhao ^{[1
]}

Chen, Shengli ^{[2
]}

Han, Heyou ^{[1
]}

机构：

[1] Huazhong Agr Univ, Coll Sci, Coll Food Sci & Technol, State Key Lab Agr Microbiol, Wuhan 430070, Peoples R China

[2] Wuhan Univ, Dept Chem, Hubei Key Lab Electrochem Power Sources, Wuhan 430072, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2016年 / 8卷 / 20期

基金：

中国国家自然科学基金;

关键词：

high-density; heterojunction interface; heterostructure; electrocatalyst; alcohol; OXYGEN-REDUCTION REACTION; ELECTROCATALYTIC ACTIVITY; FUEL-CELLS; ETHANOL ELECTROOXIDATION; FACILE SYNTHESIS; ALKALINE MEDIA; OXIDATION; NANOWIRES; CATALYSTS; NANOSTRUCTURES;

D O I：

10.1021/acsami.6b02099

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Here, we, for the first time, synthesized Pd nanotubes covered by high-density Au-islands, in which abundant exposed Pd Au heterojunction interfaces are present and the content of element Au can be easily controlled. The optimized nanostructures show remarkably enhanced activity for catalyzing different alcohols in alkaline media than commercial Pd/C. The mass activity is 9.66, 1.83, and 4.60 A mgmetal(-1) toward the electrooxidation of ethanol, glycerol, and ethylene glycol in alkaline media, which is about 6, 4, and 7 times that of Pd/C, respectively. Additionally, a model was proposed to explain the relationship between the structure and the catalytic activity.

引用

页码：12792 / 12797

页数：6

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