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XPS Investigation to Determine Nitrogen Functional Forms in Coals

机译:XPS调查确定煤中的氮功能形式

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To measure nitrogen functional forms in coals by X-ray photoelectron spectroscopy (XPS), suitable operation conditions and analytical methods were discussed. A special polyimido film was employed to determine the accurate sensitivity factors of carbon Is and nitrogen Is. The peak widths of some nitrogen types were obtained to analyze the difference of normalized Nls spectrum between coals. Then a good correlation between N/C area ratio measured by XPS and bulk N/C atomic ratio was obtained for SO coals and 7 model compounds.
机译:为了通过X射线光电子谱(XPS)测量煤中的氮功能形式,讨论了合适的操作条件和分析方法。采用特殊的聚咪唑膜来确定碳的精确敏感性因子和氮。获得一些氮类型的峰宽,以分析煤之间标准化的NLS光谱差异。然后得到XPS和大量N / C原子比测量的N / C面积比之间的良好相关性,用于煤和7种模型化合物。

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