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Highly Dispersed and Nano-sized Pt-based Electrocatalysts for Low-Temperature Fuel Cells

Cited 22 time in Web of Science Cited 26 time in Scopus
Authors
Lim, Dong-Ha; Lee, Weon-Doo; Lee, Ho-In
Issue Date
2008
Publisher
Springer
Citation
Catal Surv Asia (2008) 12:310–325
Keywords
Low-temperature fuel cellPt-based electrocatalystsNano-sized metal oxideMethanol oxidationCO toleranceOxygen reduction reaction
Abstract
Among metals, Pt is so far the best material to
be used as anode and cathode in low-temperature fuel cells.
However, Pt has the drawback of being expensive and
easily CO-poisoned. Thus, to produce useful electrocatalysts,
significant efforts have been made worldwide on
developing Pt-based catalysts with low Pt contents as well
as searching for alternative materials with high catalytic
activity for anodic and cathodic reactions in low-temperature
fuel cells. This article presents the development of
highly dispersed and nano-sized Pt-based electrocatalysts
synthesized by several new methods based on our experimental
results. In the case of anode materials, our proposed
new method consists of the synthesis of Pt-based nanoparticles
in order to maximize their surface availability,
combined with the use of secondary metals that promote
the oxidations of methanol and CO. On the other hand, for
the cathode materials, the use of the Pt catalysts mixed with
metal oxides enhances their oxygen reduction reaction
(ORR) activity. We anticipate that the highly dispersed Ptbased
nanoparticles introduced in this article will improve
the performance of anode and cathode for low-temperature
fuel cells.
ISSN
1571-1013 (Print)
1574-9266 (Online)
Language
English
URI
http://hdl.handle.net/10371/61285
DOI
https://doi.org/10.1007/s10563-008-9059-z
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
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