Research on electrocatalytic activity of carbon nanotube-supported Pt-bimetallic nanoparticles for methanol and ethanol oxidations
Abstract
Pt, Pt-Fe, Pt-Co, and Pt-Ni nanoparticles were synthesized on single-walled carbon nanotubes (SWCNT), and their effects on electrocatalytic activity for methanol and ethanol oxidations were investigated using cyclic voltammetry and electrochemical impedance spectroscopy. Followed by the order of Pt-Fe/SWCNT, Pt-Co/SWCNT and Pt-Ni/SWCNT, the catalysts demonstrate better electrocatalytic activities for both methanol and ethanol oxidations, but less tolerance to CO poisoning. In comparison to Pt/SWCNT, Pt-Ni/SWCNT exhibits better catalytic characteristics for methanol oxidation, and Pt-Ni/SWCNT could be a desirable catalyst candidate for direct methanol fuel cells. However, for ethanol oxidation, Pt/SWCNT has better catalytic characteristics than Pt-Ni/SWCNT.
Department(s)
Physics, Astronomy, and Materials Science
Document Type
Article
Keywords
Electrocatalytic activity, Ethanol, Fuel cell, Inorganic non-metallic materials, Methanol, Pt-based catalyst, Single-walled carbon nanotube
Publication Date
12-1-2011
Recommended Citation
Dong, Hongzhou, and Lifeng Dong. "Research on Electrocatalytic Activity of Carbon Nanotube–Supported Pt–bimetallic Nanoparticles for Methanol and Ethanol Oxidations." Chinese Journal of Materials Research 25, no. 6 (2011): 579-584.
Journal Title
Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research
