1. AuPt Nanoparticles Clusters on MWCNTs with Enhanced Electrocatalytic Activity for Methanol Oxidation.
- Author
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Wang, Changzheng, Yang, Fengnan, Gao, Li, Xu, Shoufang, Fan, Louzhen, Guo, Tao, Liu, Yongfeng, Zhou, Lian, and Zhang, Yang
- Subjects
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GOLD nanoparticles , *MULTIWALLED carbon nanotubes , *ELECTROCATALYSIS - Abstract
AuPt nanoparticles clusters (NPCs) were electrodeposited on multiwalled carbon nanotubes (MWCNTs). The as-prepared AuPt NPCs@MWCNTs nanocomposites exhibited considerably enhanced electrocatalytic activity than Pt NPs@MWCNTs for methanol oxidation in acid medium. In comparison with Pt NPs@MWCNTs, a remarkable resistance to CO poisoning and a higher If/Ib value (the ratio of the forward scan oxidation peak current (If) and reverse scan oxidation peak current (Ib)) was achieved by AuPt NPCs@MWCNTs electrocatalyst, which is attributable to the unique NPCs nanostructure with enlarged electrochemical active surface areas. These results demonstrated the potential of AuPt NPCs@MWCNTs, which can be considered as an efficient electrocatalyst for methanol oxidation in direct methanol fuel cells. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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