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January 25th, 2010

Meso/Macroporous Ceria with Enhanced Surface Oxygen Activity via Plant-Leaf Mineralization

Published on January 25th, 2010 | By: pwray@ceramics.org

Volume 93 Issue 1, Pages 40 – 43

 

Sukkwun Chow, Tongxiang Fan, Jian Ding, Di Zhang
Published Online: Sep 28 2009 3:14PM
DOI: 10.1111/j.1551-2916.2009.03361.x

 

ABSTRACT
Biomorphic cerias were produced through mineralizing plant-leaf templates (camphor and common oleander) with a cerium nitrate precursor. They were mesoporous while inheriting the species-dependent macrofeatures of plant-leaf templates, like macropores, channels, and microfibrous clusters, to have a meso/macroporous hierarchy. Surface oxygen activity was enhanced for the biomorphic cerias, as was revealed by temperature-programmed reduction measurements, suggesting their potentials in mid-temperature (300°-600°C) applications of oxygen storage, catalysis, gas sensing, etc.

 

Online Access to Journal of the American Ceramic Society


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