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Effects of Different Carbon Nanotube Supported Catalysts on Methanol and Ethanol Electro-Oxidation

MRS Online Proceedings Library volume 1213, Article number: 4 (2009) Cite this article

Abstract

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.

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Authors and Affiliations

  1. Department of Physics, Astronomy and Materials Science, USA

    Reddy Sanganna Gari Raghavendar & Lifeng Dong

  2. Greenwood Laboratory School, Missouri State University, 65897, Springfield, MO, U.S.A.

    Zhou Li

Authors
  1. Reddy Sanganna Gari Raghavendar
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  2. Zhou Li
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  3. Lifeng Dong
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Raghavendar, R.S.G., Li, Z. & Dong, L. Effects of Different Carbon Nanotube Supported Catalysts on Methanol and Ethanol Electro-Oxidation. MRS Online Proceedings Library 1213, 4 (2009). https://doi.org/10.1557/PROC-1213-T08-17

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  • DOI: https://doi.org/10.1557/PROC-1213-T08-17