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Title: Core/Shell Pd/FePt Nanoparticles as an Active and Durable Catalyst for the Oxygen Reduction Reaction

Abstract

We report a unique synthesis of core/shell Pd/FePt nanoparticles (NPs) and their catalysis of the oxygen reduction reaction (ORR). The uniform FePt shell is formed by controlled nucleation of Fe(CO){sub 5} in the presence of a Pt salt and Pd NPs at designated reaction temperatures. The Pd/FePt NPs show FePt shell-dependent catalytic properties, and those having a 1 nm FePt shell exhibit a drastic increase in durability and activity (15 times more active with a 140 mV gain in onset potential in comparison with those having a 3 nm coating). These Pd/FePt NPs are promising new catalysts for practical fuel cell applications.

Authors:
 [1];  [2];  [2];  [1]
  1. Brown University
  2. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Shared Research Equipment Collaborative Research Center
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
989149
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Journal of the American Chemical Society
Additional Journal Information:
Journal Volume: 132; Journal Issue: 23; Journal ID: ISSN 0002-7863
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; CATALYSIS; CATALYSTS; FUEL CELLS; NUCLEATION; OXYGEN; SYNTHESIS

Citation Formats

Mazumder, Vismadeb, Chi, Miaofang, More, Karren Leslie, and Sun, Shouheng. Core/Shell Pd/FePt Nanoparticles as an Active and Durable Catalyst for the Oxygen Reduction Reaction. United States: N. p., 2010. Web. doi:10.1021/ja1024436.
Mazumder, Vismadeb, Chi, Miaofang, More, Karren Leslie, & Sun, Shouheng. Core/Shell Pd/FePt Nanoparticles as an Active and Durable Catalyst for the Oxygen Reduction Reaction. United States. doi:10.1021/ja1024436.
Mazumder, Vismadeb, Chi, Miaofang, More, Karren Leslie, and Sun, Shouheng. Fri . "Core/Shell Pd/FePt Nanoparticles as an Active and Durable Catalyst for the Oxygen Reduction Reaction". United States. doi:10.1021/ja1024436.
@article{osti_989149,
title = {Core/Shell Pd/FePt Nanoparticles as an Active and Durable Catalyst for the Oxygen Reduction Reaction},
author = {Mazumder, Vismadeb and Chi, Miaofang and More, Karren Leslie and Sun, Shouheng},
abstractNote = {We report a unique synthesis of core/shell Pd/FePt nanoparticles (NPs) and their catalysis of the oxygen reduction reaction (ORR). The uniform FePt shell is formed by controlled nucleation of Fe(CO){sub 5} in the presence of a Pt salt and Pd NPs at designated reaction temperatures. The Pd/FePt NPs show FePt shell-dependent catalytic properties, and those having a 1 nm FePt shell exhibit a drastic increase in durability and activity (15 times more active with a 140 mV gain in onset potential in comparison with those having a 3 nm coating). These Pd/FePt NPs are promising new catalysts for practical fuel cell applications.},
doi = {10.1021/ja1024436},
journal = {Journal of the American Chemical Society},
issn = {0002-7863},
number = 23,
volume = 132,
place = {United States},
year = {2010},
month = {1}
}