Effect of Sol Infiltration on Microstructures of Biomorphic TiO2

Abstract

Biomorphic TiO2 was respectively prepared by two different titania sol infiltration routes. The morphology and microstructure of TiO2 samples were characterized by scanning electron microscopy. The results suggest that the final TiO2 poorly replicates the shape and microstructure of carbon template by repeating five infiltration procedures. By another repeated infiltration/pyrolysis route, the TiO2 better retains the shape and part microstructure of carbon template.