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Issue 37, 2013
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Carbon nanotubes as electronic interconnects in solid acid fuel cell electrodes

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Abstract

Carbon nanotubes have been explored as interconnects in solid acid fuel cells to improve the link between nanoscale Pt catalyst particles and macroscale current collectors. The nanotubes were grown by chemical vapor deposition on carbon paper substrates, using nickel nanoparticles as the catalyst, and were characterized using scanning electron microscopy and Raman spectroscopy. The composite electrode material, consisting of CsH2PO4, platinum nanoparticles, and platinum on carbon-black nanoparticles, was deposited onto the nanotube-overgrown carbon paper by electrospraying, forming a highly porous, fractal structure. AC impedance spectroscopy in a symmetric cell configuration revealed a significant reduction of the electrode impedance as compared to similarly prepared electrodes without carbon nanotubes.

Graphical abstract: Carbon nanotubes as electronic interconnects in solid acid fuel cell electrodes

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Publication details

The article was received on 27 Mar 2013, accepted on 12 Jul 2013 and first published on 13 Aug 2013


Article type: Paper
DOI: 10.1039/C3CP52586D
Citation: Phys. Chem. Chem. Phys., 2013,15, 15470-15476
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    Carbon nanotubes as electronic interconnects in solid acid fuel cell electrodes

    Á. Varga, M. Pfohl, N. A. Brunelli, M. Schreier, K. P. Giapis and S. M. Haile, Phys. Chem. Chem. Phys., 2013, 15, 15470
    DOI: 10.1039/C3CP52586D

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