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Research Article

A nanoporous oxide interlayer makes a better Pt catalyst on a metallic substrate: Nanoflowers on a nanotube bed

Hongyi Li1,2, Jinshu Wang1( ), Man Liu1, Hong Wang1, Penglei Su1, Junshu Wu1, Ju Li2( )
Key Laboratory of Advanced MaterialsCollege of Materials and EngineeringBeijing University of TechnologyBeijing100124China
Department of Nuclear Science and EngineeringDepartment of Materials Science and EngineeringMassachusetts Institute of TechnologyCambridgeMassachusetts02139USA
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Abstract

To improve the contact between platinum catalyst and titanium substrate, a layer of TiO2 nanotube arrays has been synthesized before depositing Pt nanoflowers by pulse electrodeposition. Dramatic improvements in electrocatalytic activity (3×) and stability (60×) for methanol oxidation were found, suggesting promising applications in direct methanol fuel cells. The 3× and 60× improvements persist for Pt/Pd catalysts used to overcome the CO poisoning problem.

Keywords

electrocatalysttitanium dioxide nanotubeplatinum nanoflowercatalytic activitycycle life

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Nano Research
Volume 7 Issue 7,
July 2014
Pages 1007-1017
DOI: 10.1007/s12274-014-0464-5
Cite this article:
Li H, Wang J, Liu M, et al. A nanoporous oxide interlayer makes a better Pt catalyst on a metallic substrate: Nanoflowers on a nanotube bed. Nano Research, 2014, 7(7): 1007-1017. https://doi.org/10.1007/s12274-014-0464-5

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Received: 20 December 2013
Revised: 21 February 2014
Accepted: 31 March 2014
Published: 04 June 2014
© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2014
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