3D porous Cu@Cu2O films supported Pd nanoparticles for glucose electrocatalytic oxidation

被引：58
|
作者：
Ji, Yaqiang [1 ,2 ]
Liu, Jiao [2 ]
Liu, Xiaonan [2 ]
Yuen, Matthew M. F. [3 ]
Fu, Xian-Zhu [2 ]
Yang, Ying [1 ]
Sun, Rong [2 ]
Wong, Ching-Ping [4 ]
机构：
[1] Chongqing Univ, Key Lab Low Grade Energy Utilizat Technol & Syst, Chongqing 400030, Peoples R China
[2] Chinese Acad Sci, Guangdong Prov Key Lab Mat High Dens Elect Packag, Shenzhen High Dens Elect Packaging & Device Assem, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China
[3] Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, Hong Kong, Hong Kong, Peoples R China
[4] Chinese Univ Hong Kong, Dept Elect Engn, Hong Kong, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2017年 / 248卷
基金：
中国国家自然科学基金;
关键词：
Porous nanostructure; Cu@Cu2O-Pd electrode; glucose oxidation; electrocatalysts; biosensors; ELECTRODE MATERIALS; GRAPHENE OXIDE; NANOFIBERS; CU2O; SUPERCAPACITORS; COMPOSITES; TRANSITION; SENSORS; ARRAYS; CARBON;
D O I：
10.1016/j.electacta.2017.07.100
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
3D hierarchically porous Cu@Cu2O films supported Pd nanoparticles with excellent electrocatalytic activity are synthesized through electrochemical deposition, anodic oxidation and redox growth. Enzyme-free glucose biosensors based on the porous Cu@Cu2O-Pd electrodes exhibit higher sensitivity (1.157 mA cm (2)mM (1)) than those of the porous Cu@Cu2O films (0.607 mA cm (2)mM (1)), porous Cu films (0.507 mA cm (2)mM (1)) and Pd nanoparticles (0.107 mA cm (2)mM (1)). The enhanced activity of the porous Cu@Cu2O-Pd nanostructures might be attributed to the unique hierarchical porous structures with highly exposed active sites and synergetic effect from metal oxide semiconductor Cu2O and noble metal Pd. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：299 / 306
页数：8
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