Novel Pd13Cu3S7 nanotubes with high electrocatalytic activity towards both oxygen reduction and ethanol oxidation reactions

被引：15

作者：

Du, Cheng ^{[1
,2
]}

He, Shuijian ^{[1
,2
]}

Liu, Minmin ^{[1
,2
]}

Gao, Xiaohui ^{[1
,2
]}

Zhang, Ruizhong ^{[1
,2
]}

Chen, Wei ^{[1
]}

机构：

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

[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China

来源：

CRYSTENGCOMM | 2016年 / 18卷 / 32期

基金：

中国国家自然科学基金;

关键词：

FUEL-CELLS; GALVANIC REPLACEMENT; ALLOY NANOPARTICLES; COPPER NANOWIRES; FORMIC-ACID; CATALYSTS; PD; ELECTROOXIDATION; EFFICIENT; PERFORMANCE;

D O I：

10.1039/c6ce00688d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In the search for more effective and stable fuel cell electrocatalysts, we have developed a facile method to synthesize novel Pd13Cu3S7 nanotubes (Pd13Cu3S7 NTs) for the first time. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM) measurements have been used to characterize the structure, components and morphology of the Pd13Cu3S7 NTs. Due to their novel structure and composition, the as-prepared Pd13Cu3S7 NTs showed a high oxygen reduction reaction (ORR) catalytic performance, with similar catalytic activity to that of commercial Pt/C but with better stability than Pt/C. Furthermore, the ORR catalyzed by the Pd13Cu3S7 NTs was calculated to be a directly 4e(-) process. On the other hand, the Pd13Cu3S7 NTs also exhibited excellent ethanol oxidation reaction (EOR) activity (2.7 mA cm(-2)), which is about five times that of commercial Pd/C (0.55 mA cm(-2)). An EIS study indicated that the charge transfer resistance of the Pd13Cu3S7 NTs is much lower than that of commercial Pd/C in the EOR.

引用

页码：6055 / 6061

页数：7

共 38 条

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