Jump to main content
Jump to site search

Issue 16, 2012
Previous Article Next Article

Pt monolayer deposition onto carbon nanotube mattes with high electrochemical activity

Author affiliations

Abstract

Pt monolayers with high catalytic activity were deposited onto carbon nanotube mattes by the chemical displacement of Cu monolayers on CNTs produced using an underpotential electro-deposition method. The electrochemical surface modification of graphitic CNT surface by fluorinated benzoic acid was critical to coordinate Cu ions resulting in uniform Cu monolayer formation. For MeOH fuel cell applications, the mass activity of Pt monolayer reached 2711 A g−1 at a scan rate of 20 mV s−1 and in a solution of 1 M CH3OH/0.5 M H2SO4. This is a 13 fold improvement than that of the ∼10 nm thick Pt film coated on MWCNTs. Besides the high mass activity that is needed for the widespread used of rare catalytic metals in fuel cell applications, the Pt monolayer coated on buckypaper has several other advantages such as low cost, high surface area, flexibility, mechanical robust and enhanced mass transport.

Graphical abstract: Pt monolayer deposition onto carbon nanotube mattes with high electrochemical activity

Back to tab navigation
Please wait while Download options loads

Publication details

The article was received on 22 Oct 2011, accepted on 06 Feb 2012 and first published on 14 Mar 2012


Article type: Paper
DOI: 10.1039/C2JM15395E
Citation: J. Mater. Chem., 2012,22, 7979-7984
  •   Request permissions

    Pt monolayer deposition onto carbon nanotube mattes with high electrochemical activity

    X. Su, X. Zhan and B. J. Hinds, J. Mater. Chem., 2012, 22, 7979
    DOI: 10.1039/C2JM15395E

Search articles by author