Y-junction nanostructures of palladium: enhanced electrocatalytic properties for fuel cell reactions

Subhramannia, Mahima ; Ramaiyan, Kannan ; Aslam, Mohammed ; Pillai, Vijayamohanan K. (2009) Y-junction nanostructures of palladium: enhanced electrocatalytic properties for fuel cell reactions Journal of Electroanalytical Chemistry, 627 (1-2). pp. 58-62. ISSN 0022-0728

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.jelechem.2008.12.021

Abstract

Here we demonstrate the utility of hierarchically designed alumina templates for the formation of palladium Y-junction nanostructures through a chemical vapor deposition route. These structures exhibit enhanced electrocatalytic activity for the oxidation of formic acid (up to 1020%) compared to that of platinum Y-junction nanostructures, which could be of immense relevance to portable fuel cell technology, since designing a better electrocatalyst for fuel cell reactions continues to be an important challenge. Apart from the obvious applications in fuel cell electrocatalysis, these Y-junction nanostructures could also act as promising candidates for room temperature hydrogen separation and more importantly as interconnects in molecular scale electronic devices. The present method of fabrication of Y-junction nanostructures using hierarchical alumina templates could be extended to other metallic/semiconducting systems facilitating more general opportunities for such hierarchical designs in nanoelectronics.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Porous Alumina Membrane; Hierarchical Structures; Y-junctions; Nanostructure; Fuel Cells; Electrocatalysts
ID Code:68956
Deposited On:08 Nov 2011 04:50
Last Modified:08 Nov 2011 04:50

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