Characterization of TiO2 nanoparticles in powder form from pristine and manufactured products. Comparison of different measurands by using SAXS/BET and SEM analysis for different TiO2 nanoparticles families to achieve to a dimensional parameter. Highlighting the influence of polydispersity in shape, interactions and impurities, that can affect the results on size measurement. Illustration of the difficulties in comparing size measurement for nanomaterials.
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