Effect of sol infiltration on microstructures of biomorphic TiO_2

摘要

Biomorphic TiO_2 was respectively prepared by two different titania sol infiltration routes. The morphology and microstructure of TiO_2 samples were characterized by scanning electron microscopy. The results suggest that the final TiO_2 poorly replicates the shape and microstructure of carbon template by repeating five infiltration procedures. By another repeated infiltration/pyrolysis route, the TiO_2 better retains the shape and part microstructure of carbon template.