Bimetallic alloy nanowires and nanosponges: A comparative study of peroxidase mimetics and as enhanced catalysts for oxygen reduction reaction

A comparative study on bimetallic alloy nanomaterials, with different dimensions (i.e., 1D nanowires and 3D nanosponges), of peroxidase mimetics and as enhanced catalysts for oxygen reduction reaction was performed. The synthesized PdPt nanosponges possessed much better oxidase and peroxidase mimeti...

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Bibliographic Details
Published in:Electrochemistry communications 2013-11, Vol.36, p.22-25
Main Authors: Zhu, Zhijun, Zhai, Yanling, Zhu, Chengzhou, Wang, Zhenxin, Dong, Shaojun
Format: Article
Language:English
Subjects:
Applied sciences
Chemistry
Dimensions
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Electrochemistry
Electrodes: preparations and properties
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
General and physical chemistry
ORR
Other electrodes
PdPt alloy
Peroxidase mimetics
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Summary:A comparative study on bimetallic alloy nanomaterials, with different dimensions (i.e., 1D nanowires and 3D nanosponges), of peroxidase mimetics and as enhanced catalysts for oxygen reduction reaction was performed. The synthesized PdPt nanosponges possessed much better oxidase and peroxidase mimetics than those of PdPt nanowires. In addition, nanosponges exhibited more advantageous onset potential and higher ORR specific activity, while nanowires presented higher limiting current density. •The peroxidase mimetics and ORR activity of PdPt NWs and NSs were investigated.•PdPt NSs possessed much better peroxidase mimetics than that of PdPt NWs.•PdPt NSs exhibited more advantageous onset potential and higher ORR activity.•PdPt NWs presented higher limiting current density.
ISSN:1388-2481
1873-1902
DOI:10.1016/j.elecom.2013.08.024