Hydrothermal synthesis of potassium titanates in Ti-KOH-H2O system

被引：46

作者：

Masaki, N

Uchida, S

Yamane, H

Sato, T

机构：

[1] Tohoku Univ, Inst Chem React Sci, Sendai, Miyagi 9808577, Japan

[2] Tohoku Univ, Inst Adv Mat Proc, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF MATERIALS SCIENCE | 2000年 / 35卷 / 13期

关键词：

D O I：

10.1023/A:1004835724752

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The hydrothermal oxidation of titanium metal powder was performed in concentrated potassium hydroxide solutions above 150 degrees C. K2Ti2O5, K4Ti3O8 and a new compound KTiO2(OH) were formed as single phase and fibrous amorphous products which transformed to K2Ti4O9 and K2Ti6O13 and K2Ti2O5 by calcination were also obtained depending on the reaction conditions. A formation diagram of products in the Ti-KOH-H2O system has been constructed at the region of KOH concentration from 0 to 90 mol.kg(-1)-H2O and the temperature from 150 to 350 degrees C. (C) 2000 Kluwer Academic Publishers.

引用

页码：3307 / 3311

页数：5

共 16 条

[1] CRYSTAL STRUCTURE OF K2TI2O5 [J].