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Title: CeO 2 Nanostructures Prepared by Selective Water‐Soluble Sr 3 Al 2 O 6 (SAO)‐CeO 2 Vertically Aligned Nanocomposite
The unique redox properties and high oxygen capacity of nanostructured CeO2demonstrate a wide range of applications, such as electrolytes for solid oxide fuel cells, gas sensors, and catalysis for automotive exhaust gas. Most CeO2nanomaterials are prepared by chemical synthesis or hard templating methods. An effective way to obtain highly textured, small‐radius dimensions with high specific surface area remains challenging. Here, highly textured CeO2nanostructures with various shapes ranging from nanowires to nanoporous thin films are successfully synthesized. Vertically aligned nanocomposites (VANs) of Sr3Al2O6(SAO) and CeO2are synthesized first while varying concentration ratio between them. Once the SAO is dissolved in water, the remaining CeO2forms distinct nanostructures. The thermal stability of the nanostructured CeO2is evaluated byin situheating XRD and thermal annealing tests. This method provides an alternative approach to preparing nanostructured CeO2without toxic chemical solutions or complex micro/nanofabrication techniques. These results present a novel approach to prepare nanostructured CeO2for future sensing and energy device applications.  more » « less
Award ID(s):
2323752 2016453
PAR ID:
10635086
Author(s) / Creator(s):
; ; ; ; ; ; ; ;
Publisher / Repository:
Wiley
Date Published:
Journal Name:
Advanced Engineering Materials
ISSN:
1438-1656
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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