Nishanth, K.G. and Sridhar, P. and Pitchumani, S. (2013) Carbon-supported Pt encapsulated Pd nanostructure as methanol-tolerant oxygen reduction electro-catalyst. International Journal of Hydrogen Energy , 38. pp. 612-619. ISSN 0360-3199

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Abstract

Pt@Pd/C nanoparticle was prepared by the galvanic displacement reaction between Pt4þ and Pd. A simple synthesis strategy was followed to prepare carbon-supported Pd nanostructure. Pt modified Pd nanostructure on carbon was characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, Cyclic Voltammetry and Linear Sweep Voltammetry. Pt@Pd/C electro-catalyst exhibited higher catalytic activity toward oxygen reduction reaction with excellent methanol tolerance than Pt/C. Pt@Pd/C catalyst showed consistent catalytic activity before and after the durability study. Higher methanol tolerance of Pt@Pd/C with less Pt content than Pt/C suggests that it could be a potential alternative cathode electro-catalyst for DMFCs

Item Type:	Article
Uncontrolled Keywords:	Electro-catalyst; Fuel cell; Oxygen reduction reaction; Methanol tolerance; Core-shell nanostructure; Direct methanol fuel cell
Subjects:	Fuel Cells Electrochemical Power Sources
Divisions:	UNSPECIFIED
Depositing User:	Dr. N Meyyappan
Date Deposited:	30 May 2013 07:56
Last Modified:	30 May 2013 07:56
URI:	http://cecri.csircentral.net/id/eprint/3032

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