Characterization of a new potassium titanate, KTiO2(OH) synthesized via hydrothermal method

Naruhiko Masaki, Satoshi Uchida, Hisanori Yamane, Tsugio Sato

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53 Citations (Scopus)

Abstract

A new potassium titanate, KTiO2(OH), synthesized by hydrothermal oxidation of Ti metal powder in KOH solution was characterized. The X-ray photospectroscopy revealed that titanium contained in this compound consists of only Ti4+, and FT-IR spectrum supported the existence of hydroxyl group in the structure. It was found that the titanate has a hexagonal tunnel structure with the space group P6122 and lattice parameters a = 9.8889 Å and c = 28.6711 Å, by crystal structure analysis with the use of powder XRD pattern. This agrees with the results of electron diffraction and morphology observed by SEM. The heating of KTiO2(OH) above 528 °C led to dehydration and phase transformation to give K2Ti2O5.

Original languageEnglish
Pages (from-to)419-424
Number of pages6
JournalChemistry of Materials
Volume14
Issue number1
DOIs
Publication statusPublished - 2002 Mar 26

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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