Novel synthesis of PtRu/multi-walled carbon nanotube catalyst via a microwave-assisted imidazolium ionic liquid method for methanol oxidation

A facile and fast microwave-assisted ionic liquid method has been developed to prepare PtRu nanoparticles onto multi-walled carbon nanotubes (MWCNTs). This novel method has some advantages, such as the high electrocatalytic activity of the catalysts for the methanol oxidation, simple preparation pro...

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Bibliographic Details
Published in:Journal of power sources 2010-11, Vol.195 (21), p.7234-7237
Main Author: Guo, Dao-Jun
Format: Article
Language:English
Subjects:
Anodizing
Applied sciences
Catalysts
Direct energy conversion and energy accumulation
Direct methanol fuel cell
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrocatalysis
Electrocatalytic activity
Electrochemical conversion: primary and secondary batteries, fuel cells
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
Ionic liquids
Methanol
Methyl alcohol
Multi wall carbon nanotubes
Nanoparticles
Oxidation
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Summary:A facile and fast microwave-assisted ionic liquid method has been developed to prepare PtRu nanoparticles onto multi-walled carbon nanotubes (MWCNTs). This novel method has some advantages, such as the high electrocatalytic activity of the catalysts for the methanol oxidation, simple preparation procedures, and recycle of the ionic liquids. Transmission electron micrograph shows that PtRu nanoparticles with diameter of 2–5 nm are uniformly deposited along the length of the MWCNTs (PtRu/MWCNTs). The structure and nature of the resulting PtRu/MWCNT catalysts are also characterized by X-ray diffraction. Electrochemical measurements show that the electrocatalytic oxidation of methanol shows very high catalytic efficiency compared with commercial E-TEK Pt/C (20 wt%Pt) catalysts, which is crucial for anode electrocatalysis in direct methanol fuel cells.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2010.05.061