Potassium polytitanates intercalated with nickel ions and their thermal transformations

Potassium polytitanates intercalated with nickel ions and their thermal transformations

The intercalation of nickel ions into the layered structure of ultradispersed amorphous potassium polytitanate powder on treatment with an aqueous solution of nickel sulfate was studied. The limiting nickel content that can be attained by intercalation is 12.8 wt %. The nickel ion intercalation resu...

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Bibliographic Details
Published in:Russian journal of inorganic chemistry Vol. 56; no. 11; pp. 1693 - 1697
Main Authors: Gorokhovsky, A. V., Kosobudskii, I. D., Tret’yachenko, E. V., Yurkov, G. Yu, Nikitina, L. V., Palagin, A. I.
Format: Journal Article
Language:English
Published: Dordrecht SP MAIK Nauka/Interperiodica 01-11-2011
Subjects:
Chemistry
Chemistry and Materials Science
Constraining
Inorganic Chemistry
Intercalation
Nanocomposites
Nanomaterials
Nanostructure
Nickel
Potassium
Solid solutions
Synthesis and Properties of Inorganic Compounds
Stage Heat Treatment
Nickel Salt
Interlayer Space
Potassium Titanate
Nickel Sulfate
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Summary:The intercalation of nickel ions into the layered structure of ultradispersed amorphous potassium polytitanate powder on treatment with an aqueous solution of nickel sulfate was studied. The limiting nickel content that can be attained by intercalation is 12.8 wt %. The nickel ion intercalation results in a decrease in the average particle size of potassium polytitanate and in the structural ordering. Heat treatment of the resulting intercalate promotes the formation of a nanocomposite consisting of the solid solution K 1.35 (Ni x Ti 8 − x )O 16 with the hollandite structure, Ti 2 O 3 , and, depending on the treatment schedule, either NiO nanocrystals or Ni metal.
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ISSN:0036-0236
1531-8613
DOI:10.1134/S0036023611110088