期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 51, 期 9, 页码 3598-3603出版社
AMER CHEMICAL SOC
DOI: 10.1021/ie202063p
关键词
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资金
- Cooperative Research and Development Agreement [0714C, W911SR-070C-0062]
- Defense Threat Reduction Agency [BA07PRO104]
Titania materials such as anatase (TiO2), nanotubular titania (NTT), and nanocrystalline titania (nTiO(2)) exhibit extremely short half-lives for VX, provided adequate surface-adsorbed water is present. The effect of coadsorbed water on the hydrolytic activity of these materials toward VX, GD, and HD was assessed to select the most promising candidate for study in self-decontaminating paints and coatings. The best candidate is nTiO(2), primarily chosen for its extremely short VX half-life at quite high water-content. For the most part, imbedding nTiO(2) into various coatings negatively impacts its reactivity. A notable exception is observed for the case of HD and nTiO(2)/Wax (a paint simulant), where a somewhat shorter half-life is observed compared to the nascent nTiO(2) powder. However, encrusting a painted surface with nTiO(2) powder, leaving it partly exposed rather than wholly imbedded, results in improved reactivity.
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