Preparation of Ptshell-Pdcore nanoparticle with electroless deposition of copper for polymer electrolyte membrane fuel cell

被引：32

作者：

Choi, Insoo ^{[2
]}

Ahn, Sang Hyun ^{[2
]}

Kim, Jae Jeong ^{[2
]}

Kwon, Oh Joong ^{[1
]}

机构：

[1] Univ Incheon, Dept Energy & Chem Engn, Inchon 406772, South Korea

[2] Seoul Natl Univ, Sch Chem & Biol Engn, Res Ctr Energy Convers & Storage, Seoul 151744, South Korea

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2011年 / 102卷 / 3-4期

关键词：

Oxygen reduction reaction; Electroless deposition of Cu; Pt-shell-Pd-core catalyst; Polymer electrolyte membrane fuel cell; PLATINUM-MONOLAYER ELECTROCATALYSTS; OXYGEN-REDUCTION; O-2; REDUCTION; METAL-SURFACES; CATALYTIC-ACTIVITY; TRANSITION; REACTIVITY;

D O I：

10.1016/j.apcatb.2010.12.047

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High over-potential induced by the irreversibility of oxygen reduction reaction (ORR) in polymer electrolyte membrane fuel cell (PEMFC) causes low cell performance. In order to overcome such a problem, many research groups have been studying to enhance the catalytic activity of platinum in fuel cell. In this regard, Pt-shell-Pd-core (Pt/Pd/C) nanoparticle was prepared by electrochemical method in this study. The home-made Pd/C was surrounded by Cu as a result of electroless deposition (ELD) which was followed by displacement reaction with Pt. X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) were applied to identify metallic composition. Transmission electron microscope (TEM) was adopted to image the catalysts. Besides, the catalytic properties were investigated using rotating disk electrode (RDE). The results indicated that the kinetics of electrochemically-prepared Pt/Pd/C catalyst for O-2 reduction was superior to conventional Pt/C catalyst and the feasibility of electroless deposition in fabricating electro-catalyst was confirmed through the formation of Cu ad-layer. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：608 / 613

页数：6

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