Carbon Nanotubes Supported Bimetallic Palladium-Gold Electrocatalysts for Direct Formic Acid Fuel Cell

Cheng-Han Chen 1Wei-Jen Liou 1Wei-Syuan Lin 1Hong-Ming Lin 1She-huang Wu 1Leszek Stobinski 2,3Andrzej Borodzinski 2Piotr Kedzierzawski 2

1. Tatung University, Department of Material Engineering (TTU), 40 ChungShan North Road, 3rd Section Taipei 104, R.O.C., Taipei 10461, Taiwan
2. Polish Academy of Sciences, Institute of Physical Chemistry, Kasprzaka 44/52, Warszawa 01-224, Poland
3. Warsaw University of Technology, Faculty of Materials Science and Engineering (InMat), Wołoska 141, Warszawa 02-507, Poland

Abstract

Preparation and characterization of palladium and palladium-gold nanoparticles on multiwall carbon nanotubes (MWCNTs) electrocatalysts towards formic acid electrooxidation are described.  Palladium and gold have been deposited on MWCNTs by pol-yol method using PdCl2 and HAuCl4.4H2O as precursors.  The catalysts synthesized after annealing in H2(5%)/Ar mixture gas are characterized by XRD, TEM, EDS and cyclic voltammetry.  According to XRD analysis, annealed Pd-Au/MWCNTs catalyst reveals solid solution structure of Pd-Au nanoparticles.  The images of TEM show that: (i) Pd and Pd-Au nanoparticles particle sizes are in the ranges of 5-10 nm and 20-40 nm, respectively, (ii) they are both distributed uniformly on MWCNTs, and (iii) Pd-Au/MWCNTs have core/shell (Pd/Pd-Au) structure.  Pd-Au/MWCNTs shows significantly improved catalytic activity and the stability at room temperature for formic acid electrooxidation.  The specific catalysis of palladium in Pd-Au/MWCNTs is found to be more than two times higher than that of Pd/MWCNTs catalyst.

Legal notice
  • Legal notice:

    Copyright (c) Pielaszek Research, all rights reserved.
    The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
    In every case, proper references including Author(s) name(s) and URL of this webpage: http://science24.com/paper/20067 must be provided.

 

Related papers
  1. Carbon nanotubes applications for drug and gene delivery
  2. Oczyszczanie i modyfikacja nanomateriałów węglowych
  3. Effects of impurities in LiFePO4 cathodes on the cycling performance of LiFePO4/MCMB cells
  4. Raman spectroscopy studies of metal - carbon nanotubes composite materials.
  5. Laser radiation-induced effects in Raman spectra of multiwalled carbon nanotubes
  6. Carbon Nanotubes: Modifications and Applications
  7. Diamine biomolecules surface functionalization single-walled carbon nanotube as gene-delivery vector
  8. Catalytic Activity and Selectivity of Pt/MWCNTs System in Hydrodechlorination of Freon CFC-12
  9. Ferrimagnetic DP-Bioglass Particles Modified with Polyethylene Glycol and Folic Acid Used for Drug Delivery Process

Presentation: Invited oral at E-MRS Fall Meeting 2009, Symposium H, by Hong-Ming Lin
See On-line Journal of E-MRS Fall Meeting 2009

Submitted: 2009-06-02 07:54
Revised:   2009-06-07 00:48
Google
 
Web science24.com
© 1998-2021 pielaszek research, all rights reserved Powered by the Conference Engine