| 辽河减压渣油中非卟啉镍的XAFS研究 |
| |
| 引用本文： | 徐海,阙国和,王继乾,于道永,张静,谢亚宁,胡天斗.辽河减压渣油中非卟啉镍的XAFS研究[J].化学学报,2003,61(3):450-453. |
| |
| 作者姓名： | 徐海 阙国和 王继乾 于道永 张静 谢亚宁 胡天斗 |
| |
| 作者单位： | 1. 石油大学化学化工学院,东营,257061
2. 中国科学院高能物理研究所同步辐射室,北京,100039 |
| |
| 摘 要： | 为获得石油中非卟啉Ni的结构信息，采用荧光法对辽河减压清油中非叶琳Ni的 K边进行了XAFS测试非叶琳Ni第一配位壳层的结构和Ni-四苯基卟啉（NiTPP）的配 位结构类似，也是4个氮原子，呈平面四方构型为0.192nm，在较高的配位壳层，二 者存在一定的差别此外，根据XAFS测试，对石油中非卟啉Ni讨论.
|
| 关 键 词： | 卟啉 镍化合物 渣油 |
| 修稿时间： | 2002年8月20日 |
Structural Characterization by XAFS Spectroscopy of Non-Porphyrin Nickel in Liaohe Vacuum Residue |
| |
| Institution: | College of Chemistry and Chemical Engineering,University of Petroleum;Synchrotron Radiation Laboratory,Institute of High Energy Physics,Chinese Academy of Sciences |
| |
| Abstract: | The local chemical structure of non-porphyrin Ni in Liaohe vacuum residue was investigated by X-ray absorption fine structure (XAFS) spectroscopy. Although the concentration of non-porphyrin Ni in the sample is very low, an available XAFS data was obtained by fluorescence mode. The X-ray absorption near edge structure (XANES) spectrum of the non-porphyrin Ni is similar to that in Ni ( II ) tetraphenylporphyrin, indicating the same Ni local structure. The extended X-ray absorption fine structure (EXAFS) result shows that the first coordination shells of Ni in the two samples are nearly identical, that is, non-porphyrin Ni also exists in a square-planar coordination of four N and the Ni-N distance is 0.192 run. |
| |
| Keywords: | XAFS non-porphyrin Ni Liaohe vacuum residue |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《化学学报》浏览原始摘要信息 |
| 点击此处可从《化学学报》下载免费的PDF全文 |
|
