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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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
Depositing User: Dr. N Meyyappan
Date Deposited: 30 May 2013 07:56
Last Modified: 30 May 2013 07:56

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