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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 34, Number 4
BKCSDE 34(4)
April 20, 2013 

 
Title
Preparation and Characterization of Palladium Nanoparticles Supported on Nickel Hexacyanoferrate for Fuel Cell Application
Author
Kwang-Hyun Choi, Mohammadreza Shokouhimehr, Yun Sik Kang, Dong Young Chung, Young-Hoon Chung, Minjeh Ahn, Yung-Eun Sung*
Keywords
Direct methanol fuel cell, Oxygen reduction reaction, Palladium, Prussian blue, Hexacyanoferrate
Abstract
Nickel hexacyanoferrate supported palladium nanoparticles (Pd-NiHCF NPs) were synthesized and studied for oxygen reduction reactions in direct methanol fuel cell. The NiHCF support was readily synthesized by a comixing of Ni(OCOCH3)2 and equimolar K3[Fe(CN)6] solution into DI water under rigorous stirring. After the preparation of NiHCF support, Pd NPs were loaded on NiHCF via L-ascorbic acid reduction method at 80 oC. Pd-NiHCF NPs were electrochemically active for oxygen reduction reaction in 0.1 M HClO4 solution. X-ray absorption near edge structure analysis was conducted to measure the white line intensity of Pd-NiHCF to verify the OH adsorption. As a comparison, carbon supported Pd NPs exhibited same white line intensity. This study provides a general synthetic approach to easily load Pd NPs on porous coordination polymers such as NiHCF and can provide further light to load Pd based alloy NPs on NiHCF framework.
Page
1195 - 1198
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