Pt/MoO3-WO3/CNTs catalyst with excellent performance for methanol electrooxidation

doi:10.1016/S1872-2067(14)60104-2

Abstract

Abstract:

A composite Pt-based catalyst was prepared by loading MoO₃ and WO₃ nanoparticles onto carbon nanotubes (Pt/MoO₃-WO₃/CNTs). There was a uniform nanoparticle distribution with small particle sizes. This was achieved through an in situ self-assembly method using poly(diallyldimethylammo- nium chloride) as a linker and through subsequent immobilization of the Pt using ethylene glycol as a reducing agent. The total amount of oxide in the CNTs was 10 wt%, and when the molar ratio of MoO₃ to WO₃ was 1:0.5, Pt/MoO₃-WO₃/CNTs showed the highest activity for the electrocatalytic oxidation of methanol with forward peak current of 835 A/gPt. Because MoO₃ and WO₃ improve the electrocatalytic activity for methanol, CO oxidation ability, and the durability of the catalyst, the Pt/MoO₃-WO₃/CNTs catalyst exhibited excellent performance for the electrocatalytic oxidation of methanol.

Key words: Direct methanol fuel cell, Anode catalyst, Pt/MoO₃-WO₃/CNTs catalyst, Methanol electrooxidation, Carbon monoxide oxidation

Hongjuan Wang, Xiaohui Wang, Jiadao Zheng, Feng Peng, Hao Yu. Pt/MoO₃-WO₃/CNTs catalyst with excellent performance for methanol electrooxidation[J]. Chinese Journal of Catalysis, 2014, 35(10): 1687-1694.

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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(14)60104-2

https://www.cjcatal.com/EN/Y2014/V35/I10/1687

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Pt/MoO₃-WO₃/CNTs catalyst with excellent performance for methanol electrooxidation

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