Characterization of a New Potassium Titanate, KTiO2(OH) Synthesized via Hydrothermal Method
Source abstract
Abstract
A new potassium titanate, KTiO 2 (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 Ti 4+, 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 P 6 1 22 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 KTiO 2 (OH) above 528 °C led to dehydration and phase transformation to give K 2 Ti 2 O 5 .
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Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Nuclear materials and radiation effects · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai 980-8577, Japan
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