Multi-dimensional Pt–Mo/Co@NC nanocomposites with low platinum contents for methanol oxidation

The high cost, CO poisoning, and slow electro-oxidation kinetics of Pt-based noble metal catalysts limit the merchandizing of direct methanol fuel cell. Here, metal zeolite imidazole frameworks composites are used to acquire a small amount (6.5 wt%) of Pt nanoparticles modified molybdenum carbide-de...

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Bibliographic Details
Published in:Journal of solid state electrochemistry 2023-02, Vol.27 (2), p.327-336
Main Authors: Wang, Jinxing, Xu, Jiahui, Chen, Zihe, Wang, Xianbao
Format: Article
Language:English
Subjects:
Analytical Chemistry
Carbon monoxide poisoning
Catalysts
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Cobalt
Condensed Matter Physics
Electrochemistry
Energy Storage
Fuel cells
Imidazole
Methanol
Molybdenum carbide
Nanocomposites
Nanoparticles
Noble metals
Original Paper
Oxidation
Physical Chemistry
Platinum
Reaction kinetics
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Summary:The high cost, CO poisoning, and slow electro-oxidation kinetics of Pt-based noble metal catalysts limit the merchandizing of direct methanol fuel cell. Here, metal zeolite imidazole frameworks composites are used to acquire a small amount (6.5 wt%) of Pt nanoparticles modified molybdenum carbide-decorated metallic cobalt@nitrogen-doped carbon nanohybrid materials (Pt–Mo/Co@NC). Compared with the merchant Pt/C catalysts, the obtained Pt–Mo/Co@NC composites exhibit substantially enhanced electrocatalytic activity and stability, and the mass activity reaches 1727 mA mg −1 at − 0.1 V, which is about 4.3 times that of merchant Pt/C catalysts.
ISSN:1432-8488
1433-0768
DOI:10.1007/s10008-022-05311-x