Enhancement of light depolarization by random ensembles of titania-based low-dimensional nanoparticles

Zimnyakov, D. A.; Zdrajevsky, R. A.; Yuvchenko, S. A.; Ushakova, O. V.; Angelsky, Oleg V.; Yermolenko, S. B.

doi:10.1016/j.jqsrt.2014.11.001

Cited by 5 publications

(1 citation statement)

References 17 publications

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“…Titania's primary crystallite size has been linked to its performance as a catalyst [21–25], as a photocatalyst [26,27], in photooxidation [28,29], and in cytotoxicity tests [30–32] [33]. Particle shape has also been linked to the performance of titania in optical applications [34–36]. Primary crystallite grain shapes vary and there have been recent reports of specific shapes affecting titania performance in new applications [37–39].…”

Section: Introductionmentioning

confidence: 99%

Size and shape distributions of primary crystallites in titania aggregates

Grulke

Yamamoto

Kumagai

et al. 2017

Advanced Powder Technology

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The primary crystallite size of titania powder relates to its properties in a number of applications. Transmission electron microscopy was used in this interlaboratory comparison (ILC) to measure primary crystallite size and shape distributions for a commercial aggregated titania powder. Data of four size descriptors and two shape descriptors were evaluated across nine laboratories. Data repeatability and reproducibility was evaluated by analysis of variance. One-third of the laboratory pairs had similar size descriptor data, but 83% of the pairs had similar aspect ratio data. Scale descriptor distributions were generally unimodal and were well-described by lognormal reference models. Shape descriptor distributions were multi-modal but data visualization plots demonstrated that the Weibull distribution was preferred to the normal distribution. For the equivalent circular diameter size descriptor, measurement uncertainties of the lognormal distribution scale and width HHS Public Access Author Manuscript Author ManuscriptAuthor ManuscriptAuthor Manuscript parameters were 9.5% and 22%, respectively. For the aspect ratio shape descriptor, the measurement uncertainties of the Weibull distribution scale and width parameters were 7.0% and 26%, respectively. Both measurement uncertainty estimates and data visualizations should be used to analyze size and shape distributions of particles on the nanoscale.

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