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

Designing Materials to Revolutionize and Engineer our Future (DMREF)