ESR, XRD, AND DRS STUDIES OF PARAMAGNETIC TI-3+ IONS IN A COLLOIDAL SOLID OF TITANIUM-OXIDE PREPARED BY THE HYDROLYSIS OF TICL3

被引：38

作者：

OOKUBO, A

KANEZAKI, E

OOI, K

机构：

[1] UNIV TOKUSHIMA,FAC ENGN,DEPT CHEM SCI & TECHNOL,MINAMIJOSANJIMA 2-1,TOKUSHIMA 770,JAPAN

[2] TOMITA PHARMACEUT CO LTD,NARUTO,TOKUSHIMA 77103,JAPAN

[3] GOVT IND RES INST,SHIKO KU,TAKAMATSU 761,JAPAN

来源：

LANGMUIR | 1990年 / 6卷 / 01期

关键词：

D O I：

10.1021/la00091a033

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

By the hydrolysis of TiC13 in aqueous solution with urea, several differently blue colored solids of colloidal titanium oxide have been synthesized, colloidal solids which show commonly a broad absorption in the visible to the near-infrared wavelength region by means of diffuse reflection spectroscopy (DRS). The intensity of this band is proportional to that of the integrated Ti3+ ESR signal, which indicates the origin of the blue coloration to be unoxidized Ti3+ ions in the solids. With the aid of X-ray diffraction (XRD), it is clear that Ti3+ ions exist in the Magneli phases. Stability of Ti3+ ions is discussed. © 1990, American Chemical Society. All rights reserved.

引用

页码：206 / 209

页数：4

共 19 条

[1] AN ELECTRON-SPIN RESONANCE STUDY OF THE SUPEROXIDE RADICAL-ANION IN POLYCRYSTALLINE MAGNESIUM-OXIDE AND TITANIUM-DIOXIDE POWDERS [J].