Morphology of TiO2 Aerogels. 1. Electron Microscopy

摘要: The microstructural characteristics of titanium dioxide (TiO{sub 2}) aerogels were studied by electron microscopies augmented other techniques such as nitrogen adsorption and X-ray diffraction. We show that the structure can be characterized two length scales: 5 nm diameter crystalline nanoparticles anatase closely packed into mesoaggregates 50 nm. are, in turn, to a loosely linked with an overall porosity 80%. total surface area is attributed sum surfaces nanoparticles. 14 refs., 11 figs.