Morphology control of ATiO3 (A=Ba, Sr, Ca) by hydrothermal soft chemical process

被引：8

作者：

Feng, Q ^{[1
]}

Yanagisawa, K ^{[1
]}

Yamasaki, N ^{[1
]}

机构：

[1] Kochi Univ, Res Lab Hydrothermal Chem, Kochi 7808520, Japan

来源：

HIGH PRESSURE RESEARCH | 2001年 / 20卷 / 1-6期

关键词：

hydrothermal soft chemical reaction; crystal morphology; fibrous ATiO(3); (A; Ba; Sr; Ca); layered hydrous titanate;

D O I：

10.1080/08957950108206162

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A hydrothermal soft chemical process for controlling the morphology of ATiO(3) (A = Ba, Sr, Ca) perovskites is proposed, and used for the synthesis of fibrous particles. In this process, a fibrous hydrous tetratitanate (H2Ti4O9 . nH(2)O) which has a layered structure was used as the precursor, and hydrothermally treated with Ba(OH)(2), Sr(OH)(2) and Ca(OH)(2) solutions. The hydrous tetratitanate was transformed to the perovskite structure, but retained the fibrous morphology after the hydrothermal reactions.

引用

页码：149 / 154

页数：6

共 9 条

[1] Transformation of manganese oxides from layered structures to tunnel structures [J].

Feng, Q ;

Yanagisawa, K ;

Yamasaki, N .

CHEMICAL COMMUNICATIONS, 1996, (14) :1607-1608

[2]

IJIMA K, 1986, J APPL PHYS, V60, P361

[3] THERMODYNAMICS OF THE HYDROTHERMAL SYNTHESIS OF CALCIUM TITANATE WITH REFERENCE TO OTHER ALKALINE-EARTH TITANATES [J].

LENCKA, MM ;

RIMAN, RE .

CHEMISTRY OF MATERIALS, 1995, 7 (01) :18-25

[4] EFFECT OF CRYSTAL-AXIS ORIENTATION ON DIELECTRIC-PROPERTIES OF CERAMICS PREPARED FROM FIBROUS BARIUM-TITANATE [J].

OHARA, Y ;

KOUMOTO, K ;

YANAGIDA, H .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1994, 77 (09) :2327-2331

[5]

OHARA Y, 1985, J AM CERAM SOC, V68, pC108, DOI 10.1111/j.1151-2916.1985.tb15310.x

[6]

PHULE PP, 1990, J MATER SCI, V25, P1169

[7] LAYERED HYDROUS TITANIUM-DIOXIDE - POTASSIUM-ION EXCHANGE AND STRUCTURAL CHARACTERIZATION [J].

SASAKI, T ;

WATANABE, M ;

KOMATSU, Y ;

FUJIKI, Y .

INORGANIC CHEMISTRY, 1985, 24 (14) :2265-2271

[8]

Seidell A., 1940, SOLUBILITIES INORGAN, V1, P387

[9]

Shimizu T., 1979, Yogyo-Kyokai-Shi, V87, P500, DOI 10.2109/jcersj1950.87.1010_500

← 1 →