Effects of different carbon nanotube supported catalysts on methanol and ethanol electro-oxidation
In this work, Pt and Pt-Ru nanoparticles were synthesized on both single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs). Effects of different nanotube supports on electrocatalytic activity of Pt and Pt-Ru nanoparticles for methanol and ethanol oxidations were investigated using cyclic voltammetry and electrochemical impedance spectroscopy. In comparison to MWCNTs, SWCNT supported Pt and Pt-Ru catalysts demonstrate better electrocatalytic activities in terms of forward peak current density, the ratio of forward peak current density to reverse peak current density, and charge transfer resistance. This study indicates that SWCNTs can serve as effective catalyst supports for both direct methanol and ethanol fuel cells.
Physics, Astronomy, and Materials Science
Raghavendar, Reddy Sanganna Gari, Zhou Li, and Lifeng Dong. "Effects of different carbon nanotube supported catalysts on methanol and ethanol electro-oxidation." MRS Online Proceedings Library 1213, no. 1 (2009): 81701-81706.
Materials Research Society Symposium Proceedings