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Exfoliation of one-dimensional TiO5 chain in K2TiO3

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Title: Exfoliation of one-dimensional TiO5 chain in K2TiO3
Authors: Masubuchi, Yuji Browse this author →KAKEN DB
Miyazaki, Ryo Browse this author
Kikuchi, Hiroki Browse this author
Motohashi, Teruki Browse this author →KAKEN DB
Kikkawa, Shinichi Browse this author →KAKEN DB
Issue Date: 28-Sep-2014
Publisher: Royal Society of Chemistry
Journal Title: Dalton Transactions
Volume: 43
Issue: 36
Start Page: 13751
End Page: 13755
Publisher DOI: 10.1039/c4dt01891e
PMID: 25104424
Abstract: Potassium titanate, K2TiO3, with a chain structure of TiO5 polyhedra was exfoliated in an aqueous nitric acid solution of pH <= 1 and Tyndall scattering due to the colloid formed by the exfoliation was observed. The colloidal particle size measured by dynamic light scattering was approximately 300 nm. The stripe pattern observed by transmission electron microscopy for the aggregated grains after their drying suggested that the TiO5 chains were exfoliated in acid solution. X-ray absorption showed that the coordination polyhedron around Ti4+ changed from a square pyramid in K2TiO3 powder to a distorted octahedron formed with the additional hydronium ions in the acidic solution.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 鱒渕 友治

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