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Hydrothermal synthesis of potassium titanate nanotubes doped with magnesium, nickel, and aluminum

Study of the phase formation in the systems TiO 2 ‒MO(M 2 O 3 )‒KOH‒H 2 O (M = Mg, Ni, Al) from crystalline and coprecipitated X-ray-amorphous mixtures demonstrated that doped potassium titanate nanotubes can be obtained in a hydrothermal treatment of coprecipitated hydroxides in the temperature ran...

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Published in:Russian journal of applied chemistry 2017, Vol.90 (2), p.193-197
Main Authors: Maslennikova, T. P., Sinel’shchikova, O. Yu, Besprozvannykh, N. V., Gatina, E. N., Kuchaeva, S. K., Ugolkov, V. L.
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container_title Russian journal of applied chemistry
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creator Maslennikova, T. P.
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description Study of the phase formation in the systems TiO 2 ‒MO(M 2 O 3 )‒KOH‒H 2 O (M = Mg, Ni, Al) from crystalline and coprecipitated X-ray-amorphous mixtures demonstrated that doped potassium titanate nanotubes can be obtained in a hydrothermal treatment of coprecipitated hydroxides in the temperature range 170‒220°C. The average outer diameter of the thus synthesized nanotubes strongly depends on the element being introduced and is 5 to 10 nm. The nanotubes have a large specific surface area (200‒300 m2 g‒1) and are stable up to a temperature of 500°C, above which they decompose to give potassium hexatitanate. The nanotubes can be used as sorbents, photocatalysts, and components of composite materials for frictional and construction purposes.
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subjects Aluminum
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Composite materials
Construction materials
Crystal structure
Decomposition
Hydrothermal treatment
Hydroxides
Industrial Chemistry/Chemical Engineering
Molybdenum
Nanotubes
Nickel
Photocatalysis
Photocatalysts
Physicochemical Studies of Systems and Processes
Potassium
Sorbents
Specific surface
Surface area
Titanium oxides
title Hydrothermal synthesis of potassium titanate nanotubes doped with magnesium, nickel, and aluminum
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