CeO2 Nanostructures Prepared by Selective Water‐Soluble Sr3Al2O6(SAO)‐CeO2 Vertically Aligned Nanocomposite
Year: 2025
Type: article
Abstract: The unique redox properties and high oxygen capacity of nanostructured CeO2 demonstrate a wide range of applications, such as electrolytes for solid oxide fuel cells, gas sensors, and catalysis for automotive exhaust gas. Most CeO2 nanomaterials 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 CeO2 nanostructures with various shapes ranging from nanowires to nanoporous thin films are successfully synthesized. Vertically aligned nanocomposites (VANs) of Sr3Al2O6 (SAO) and CeO2 are synthesized first while varying concentration ratio between them. Once the SAO is dissolved in water, the remaining CeO2 forms distinct nanostructures. The thermal stability of the nanostructured CeO2 is evaluated by in situ heating XRD and thermal annealing tests. This method provides an alternative approach to preparing nanostructured CeO2 without toxic chemical solutions or complex micro/nanofabrication techniques. These results present a novel approach to prepare nanostructured CeO2 for future sensing and energy device applications.
Source: Advanced Engineering Materials
Authors: Benson Kunhung Tsai, Jialong Huang, Jianan Shen, Yizhi Zhang, James P. Barnard, Claire A. Mihalko, Abhijeet Choudhury, Shiyu Zhou, Haiyan Wang
Institution: Purdue University West Lafayette
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,520
Awards: G1373413830, G2252123687, ACHIEVING LONG RANGE ORDERING IN OXIDE-METAL HYBRID MATERIALS —A COMBINED EXPERIMENTAL AND MODELING APPROACH, G3606538660, G4720003262, DMREF: Magneto-electro-optically coupled hybrid metamaterial thin film platform for photonic integrated circuits, Novel Two Phase Vertically Aligned Nanocomposites Beyond Oxides, G6523238283, ACHIEVING LONG RANGE ORDERING IN OXIDE-METAL HYBRID MATERIALS —A COMBINED EXPERIMENTAL AND MODELING APPROACH, G7385596515, G8623880597, G8876996369, G949747863
OpenAlex ID: W4412652211