Abstract
High-concentration nitrogen-doped titania is obtained by detonation-driven flyer impacting on mixtures of TiO2 and different nitrogen precursors. XRD, IR, and XPS spectra are employed to characterize the phase composition, surface absorption, and N-doping concentration of recovered samples. The N-doping concentration is affected by doping nitrogen resources, initial content of doping nitrogen resources, and flyer velocity. A high nitrogen concentration of 13.6 at.% is achieved by shock loading of the mixture of P25 TiO2 and 10 wt.% dicyandiamide (C2N4H4) at 3.37 km/s. A possible shock doping mechanism is discussed.
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Original Russian Text © P. Chen, X. Gao, J. Liu, Q. Zhou, F. Huang.
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Translated from Fizika Goreniya i Vzryva, Vol. 48, No. 6, pp. 76–82, November–December, 2012.
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Chen, P., Gao, X., Liu, J. et al. Shock-induced high-concentration nitrogen doping of titania. Combust Explos Shock Waves 48, 724–729 (2012). https://doi.org/10.1134/S0010508212060111
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DOI: https://doi.org/10.1134/S0010508212060111