XPS investigation of titanium in melanites from Monte Vulture (Italy)
XPS investigation of titanium in melanites from Monte Vulture (Italy)
复制标题
对 Monte Vulture（意大利）黑色长石中钛的 XPS 研究
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
E. Schingaro
中科院分区：
文献类型：
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作者：
C. Malitesta;I. Losito;F. Scordari;E. Schingaro
在本研究中使用X射线光电子能谱（XPS）来研究来自M.Vulture（意大利）的具有不同TiO 2含量（3%和6%wt）的两种黑精石中钛的氧化态和结构作用。当Ti ~（3+）以八面体形式存在，Ti ~（4+）以八面体和四面体形式分布时，Ti ~（2+）-XPS能谱能得到满意的拟合。XPS直接估算的Ti位数与通过Fe分布从穆斯堡尔谱（MS）间接获得的结果非常吻合。此外，已发现使用Fe 304作为解释Fe 2 p光电子谱的标准，通过XPS和MS两者估计的Fe 2 +/Fe 3+比率之间的良好一致性。关键词：黑云母-石榴石，钛，XPS技术。
X-ray photoelectron spectroscopy (XPS) is used in the present study to investigate the oxidation state and the structural role of titanium in two melanites with different Ti02 content (3 % and 6 % wt) from M.Vulture (Italy). The Ti2p-XPS spectra can be satisfactorily fitted when Ti3+ is lodged on octahedral and Ti4+ distributed over octahedral and tetrahedral sites. The XPS direct estimates of Ti site populations match very weil with those indirectly obtained from Mössbauer spectroscopy (MS) through the Fe distribution. In addition, good agreement between the Fe2+JFe3+ ratios estimated by both XPS and MS has been found using Fe304 as a standard for interpreting Fe2p photoelectron spectra. Key-words: melanite-gamet, titanium, XPS technique.