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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 

Preparation and Characterization of Palladium Nanoparticles Supported on Nickel Hexacyanoferrate for Fuel Cell Application
Kwang-Hyun Choi, Mohammadreza Shokouhimehr, Yun Sik Kang, Dong Young Chung, Young-Hoon Chung, Minjeh Ahn, Yung-Eun Sung*
Direct methanol fuel cell, Oxygen reduction reaction, Palladium, Prussian blue, Hexacyanoferrate
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.
1195 - 1198
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