| 用穆斯堡尔谱学研究Fe_2O_3-K_2O-CaO催化剂 |
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| 引用本文： | 陈荣钦,祝以湘.用穆斯堡尔谱学研究Fe_2O_3-K_2O-CaO催化剂[J].厦门大学学报(自然科学版),1988(6). |
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| 作者姓名： | 陈荣钦 祝以湘 |
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| 作者单位： | 厦门大学物理学系
(陈荣钦)，厦门大学化学系(祝以湘) |
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| 摘 要： | 应用穆斯堡尔谱学方法,结合X-射线衍射分析,考察了K_2O、CaO与Fe_2O_3的相互作用及其对催化行为的影响,结果表明:催化剂的相组成与其锻烧温度密切相关,K_2O与Fe_2O_3的相互作用主要生成KFe_(11)O_(17),它是催化剂的主要物?之一,得出了其中四种配位环境Fe~(3+)的穆斯堡尔参数,也讨论了CaO助催作用的本质。
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| 关 键 词： | 穆斯量尔谱学 氧化铁系催化剂 乙?脱氢 谈?钾(KFe_(11)O_(17) |
The Studies Of Fe_2O_3-K_2O-CaO Catalyst by Mossbauer Spectroscopy |
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| Chen Rongqin Zhu Yixiang.The Studies Of Fe_2O_3-K_2O-CaO Catalyst by Mossbauer Spectroscopy[J].Journal of Xiamen University(Natural Science),1988(6). |
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| Authors: | Chen Rongqin Zhu Yixiang |
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| Institution: | Chen Rongqin Zhu Yixiang(Dept. of Phys.) (Dept. of Chem.) |
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| Abstract: | The interactions between iron oxide and promoters in Fe2O3 K2O-CaO catalyst for ethylbenzene dehydrogenation and the promoting effects of K2O and CaO were studied by Mossbauer spectroscopy and XRD. The experimental results showed that KFe11O17 is one of main phases of the catalyst. The Mossbauer parameters of Fe3, locating in four kinds of crystal site of KFen11O17 were given in this paper. The promotion mture of CaO in Fe2O3-K2O-CaO catalyst was also discussed. |
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| Keywords: | Mosabauer spectroscopy Iron oxide catalyst Ethylbenzenee dehydrogenation Potassium ferrite (KFe11O17) |
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