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

被引：53

作者：

Masaki, N ^{[1
]}

Uchida, S ^{[1
]}

Yamane, H ^{[1
]}

Sato, T ^{[1
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

CHEMISTRY OF MATERIALS | 2002年 / 14卷 / 01期

关键词：

D O I：

10.1021/cm0107427

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 P6(1)22 and lattice parameters a = 9.8889 Angstrom and c = 28.6711 Angstrom, 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 degreesC led to dehydration and phase transformation to give K2Ti2O5.

引用

页码：419 / 424

页数：6

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