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Nanostructures CeO2 for Sensing and Energy Device Applications

Sep 16, 2025
Schematic of CeO₂ nanostructure formation via selective SAO dissolution, with STEM-HAADF images of the 50 wt% sample showing CeO₂ nanowires and partial agglomeration.
Schematic of CeO₂ nanostructure formation via selective SAO dissolution, with STEM-HAADF images of the 50 wt% sample showing CeO₂ nanowires and partial agglomeration.

This work presents a simple, chemical-free route to fabricate tunable CeO₂ nanostructures using a water-soluble VAN template, overcoming size limitations of traditional templating methods and enabling future applications in sensors, fuel cells, and catalysis

  • A novel, water-based template method was demonstrated to synthesize tunable CeO₂ nanostructures from SAO–CeO₂ VAN thin films.

  • Morphologies ranged from nanopillars to nanoporous films, depending on CeO₂ concentration.

  • The nanostructures exhibited reasonable thermal stability, making them promising for high-temperature gas sensing, catalysis, and energy devices.

Authors

Haiyan Wang (Purdue University)

Additional Materials

U.S. National Science Foundation and NSF DMREF, Materials for Our Future

This material is based upon work supported by the U.S. National Science Foundation Award No. 2015237. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the U.S. National Science Foundation. This site is maintained collaboratively by principal investigators with NSF DMREF awards, independent of the NSF.