| SEELFS对Mg-Al复合氧化物结构的研究 |
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| 引用本文： | 黄小华,黄惠忠,江德恩,赵璧英,刘载维. SEELFS对Mg-Al复合氧化物结构的研究[J]. 化学学报, 2000, 58(7): 909-911 |
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| 作者姓名： | 黄小华 黄惠忠 江德恩 赵璧英 刘载维 |
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| 作者单位： | 北京大学物理化学研究所.北京(100871) |
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| 基金项目： | 国家自然科学基金，国家攀登计划，29733080，，， |
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| 摘 要： | 应用EXAFS类似原理，对MgO和Mg-Al复合氧化物[Mg(Al)O]中Mgk-边的SEELFS(SurfaceExtendedenergyLossFineStructure)一阶微分谱进行数据处理，得到了Mg近邻原子的配位距离。研究发现，同MgO比较，由于Al^3^+的引入，使[Mg(Al)O]中的Mg－mg配位距离增加，配位数降低，而Mg－O的配位环境基本不变。
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| 关 键 词： | 氧化镁 氧化铝 复氧化物 外延X射线吸收精细结构谱 |
| 修稿时间： | 2000-04-30 |
Investigation of the structures of Mg-Al mixed oxides by SEELFS |
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| HUANG Xiao-Hua,HUANG Hui-zhong,JIANG De-En,ZHAO Bi-Ying,LIU Zai-Wei. Investigation of the structures of Mg-Al mixed oxides by SEELFS[J]. Acta Chimica Sinica, 2000, 58(7): 909-911 |
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| Authors: | HUANG Xiao-Hua HUANG Hui-zhong JIANG De-En ZHAO Bi-Ying LIU Zai-Wei |
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| Affiliation: | Beijing Univ, Inst Phys Chem.Beijing(100871) |
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| Abstract: | SEELFS mechanism was oudined and the Fourier transform function of Mg k - edge of MgO and Mg( Al)O were obtained after the data analysis of the SEELFS features . The peaks attributable to the Mg -O shell of two compounds were similar, whereas the peaks attributable to the Mg-Mg shell varied in the intensities and positions due to the introduction of Al3 at nearest - neighbour. |
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| Keywords: | SEELFS (Surface Extended Energy Loss Fine Structure) EXAFS(Extended X - ray Absorb Fine Structure) Mg- Al mixed oxides |
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