The valence state analysis of Ti in FeTiO3 by soft X-ray spectroscopy

被引：15

作者：

Fukushima, Sei

Kimura, Takashi

Nishida, Kenji

Mihai, Vlaicu A.

Yoshikawa, Hideki

Kimura, Masahiro

Fujii, Tatsuo

Oohashi, Hirofumi

Ito, Yoshiaki

Yamashita, Michiru

机构：

[1] Natl Inst Mat Sci, Mat Anal Stn, Tsukuba, Ibaraki 3050047, Japan

[2] Okayama Univ, Dept Appl Chem, Okayama 7008530, Japan

[3] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan

[4] Hyogo Prefectural Inst Ind Res, Suma Ku, Kobe, Hyogo 6540037, Japan

来源：

MICROCHIMICA ACTA | 2006年 / 155卷 / 1-2期

关键词：

WD-EPMA with field emission type electron gun; high-resolution X-ray fluorescence spectroscopy; valence state analysis; valence state of Ti; ilmenite;

D O I：

10.1007/s00604-006-0532-y

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The measurement of soft X-ray spectra, Ti K alpha(1,2), L alpha(1,2) and O K alpha, of Ti in several titanium oxide compounds was carried out by FE-WD-EPMA (wavelength dispersive - electron probe micro-analyzer with field emission type electron gun) and HRXRF (high-resolution X-ray fluorescence spectroscopy). From the results of measurements, it was found that the valence state of Ti in FeTiO3 (ilmenite) was at least partially Ti-III, might be the mixed state of Ti-IV and Ti-III. And, Ti in MgTiO3 (ilmenite system) was confirmed as Ti-IV. From the discussion, it can be presumed that the effective charge of the oxygen should be not-uniform and should be different subtlety by the cationic difference, Fe or Mg, even if it had equal crystal structure of the ilmenite system, and that this subtlety difference gave any effects on the valence state of Ti.

引用

页码：141 / 145

页数：5