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http://dx.doi.org/10.1016/j.cap.2011.11.020

Pt-Ni alloy nanoparticles supported on CNF as catalyst for direct ethanol fuel cells  

Soundararajan, D. (Division of Applied Chemistry and Biotechnology, Hanbat National University)
Park, J.H. (Division of Applied Chemistry and Biotechnology, Hanbat National University)
Kim, K.H. (Department of Physics, Yeungnam University)
Ko, J.M. (Division of Applied Chemistry and Biotechnology, Hanbat National University)
Publication Information
Current Applied Physics / v.12, no.3, 2012 , pp. 854-859 More about this Journal
Abstract
Carbon nanofiber (CNF) network supported Pt and Pt-Ni alloy nano particle catalysts were prepared by electrochemical deposition at different deposition cycles. Structure, composition and surface morphology of the Pt/CNF and Pt-Ni/CNF were analyzed using X-ray diffraction, Energy dispersive X-ray spectroscopy and field emission scanning electron microscopy. Structural analysis by XRD revealed a face centered cubic crystal structure for Pt and its alloy. SEM images have shown that the PteNi nanoparticles distributed evenly on the CNF network. The electrocatalytic activity of the Pt/CNF and Pt-Ni/CNF electrodes was verified using an electrochemical linear voltammetrty (ELV), cyclic voltammetry (ECV) and electrochemical impedance spectroscopy (EIS) in an alkaline solution containing 1 M $C_{2}H_{5}OH$ + 1 M KOH. The results show increased catalytic activity with enhancement of the Pt-Ni alloy formation.
Keywords
Nanostructured PteNi; Catalysts; CNF; Direct ethanol fuel cell;
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