| CuCl2/NaY体系加热单层分散态的程序升温还原研究 |
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| 引用本文： | 林承志,李荣利.CuCl2/NaY体系加热单层分散态的程序升温还原研究[J].沈阳师范大学学报(自然科学版),2002,20(3):202-205. |
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| 作者姓名： | 林承志 李荣利 |
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| 作者单位： | 1. 沈阳师范大学化学与生命科学学院,辽宁沈阳,110034
2. 辽阳职业技术学院化学系,辽宁辽阳,111000 |
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| 基金项目： | 辽宁省教育厅科研基金资助项目 (99112 15 5 0 ) |
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| 摘 要： | 通过对加热单层分散和离子交换两种方法制得的样品的研究表明 ,二者中Cu2 + 的状态是不同的 .在加热分散样品中 ,阈值之前的样品有两个还原峰 ,分别为 5 0 0K和 716K ,而离子交换法所得的CuY的还原峰对应温度为 4 81K和 5 86K .实验结果证明 ,在单层分散得到的样品中 ,把Cu2 + 还原为零价比离子交换法的样品困难得多 .因此 ,通过这种方法制得的催化剂的催化活性也可能与离子交换法制得的催化剂大不相同
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| 关 键 词： | 单层分散 程序升温还原 分子筛 氯化铜 |
| 文章编号： | 1008-374X(2002)03-0202-04 |
| 修稿时间： | 2002年2月26日 |
Studies on state of monolayer dispersion for CuCl2/NaY system by TPR |
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| LIN Cheng zhi\,LI Rong li\.Studies on state of monolayer dispersion for CuCl2/NaY system by TPR[J].Journal of Shenyang Normal University: Nat Sci Ed,2002,20(3):202-205. |
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| Authors: | LIN Cheng zhi\ LI Rong li\ |
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| Institution: | LIN Cheng zhi\+1,LI Rong li\+2 |
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| Abstract: | It is indicated the appearance of samples prepared by Monolayer dispersion and Ion exchange are different.In sample prepared by Monolayer dispersion,the two peaks of reducing are found at 500K and 716K,while two peaks of reducing at 481K and 586K in sample prepared by Ion exchange.In sample prepared by Monolayer dispersion to reduce the copper to zero is more difficult than that in sample prepared by ion exchange.So the catalytic active of catalyst obtained by this way are probably very different from the catalytic obtained by Ion exchange. |
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| Keywords: | monolayer dispersion TPR zeolite CuCl 2 |
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