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A Highly Reactive and Sinter‐Resistant Catalytic System Based on Platinum Nanoparticles Embedded in the Inner Surfaces of CeO 2 Hollow Fibers
Author(s) -
Yoon Kyunghwan,
Yang Yong,
Lu Ping,
Wan Dehui,
Peng HsinChieh,
Stamm Masias Kimber,
Fanson Paul T.,
Campbell Charles T.,
Xia Younan
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201203755
Subject(s) - calcination , platinum , catalysis , materials science , platinum nanoparticles , nanoparticle , polystyrene , chemical engineering , reactivity (psychology) , nanotechnology , composite material , chemistry , polymer , organic chemistry , medicine , alternative medicine , pathology , engineering
Ceria (CeO 2 ) hollow fibers with Pt nanoparticles (Pt NPs) embedded in their inner surfaces were prepared by sequentially depositing Pt NPs and CeO 2 sheaths on electrospun fibers of polystyrene, followed by calcination in air at 400 °C. Despite a relatively low Pt loading in this system, the turnover frequency for CO oxidation was 2–3 orders of magnitude higher than those of other systems, and the reactivity was also stable up to 700 °C.