| 硼酸三甲酯为探针红外光谱定量研究氧化镁的路易斯碱性 |
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| 引用本文： | 傅仕福,廖力夫,汪敏,梁俊,李灿,张慧,辛勤.硼酸三甲酯为探针红外光谱定量研究氧化镁的路易斯碱性[J].光谱实验室,2005,22(6):1168-1171. |
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| 作者姓名： | 傅仕福 廖力夫 汪敏 梁俊 李灿 张慧 辛勤 |
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| 作者单位： | 湖南南华大学化学化工学院,湖南省衡阳市常胜西路,421001;中国科学院大连化学物理研究所催化研究国家重点实验室,辽宁省大连市,116023 |
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| 摘 要： | 采用硼酸三甲酯(BATE)作为探针分子对MgO的路易斯碱性进行了红外光谱定量研究。MgO对硼酸三甲酯的吸附使硼酸三甲酯在1360cm-1的谱峰分裂成1410cm-1和1300cm-1两个峰,1036cm-1的谱峰紫移到1060cm-1。低压下吸收峰高与硼酸三甲酯压力成正比,与MgO含量成正比。结果表明MgO有一定的路易斯碱强度,与硼酸三甲酯之间的吸附是单分子层化学吸附。
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| 关 键 词： | MgO 硼酸三甲酯 路易斯碱性 红外光谱 |
| 文章编号： | 1004-8138(2005)06-1168-04 |
| 收稿时间： | 2005-08-10 |
| 修稿时间： | 2005年8月10日 |
Quantitative Study on the Lewis Base Property of MgO by Infrared Spectroscopy with Boric Acid Trimethyl Ester |
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| FU Shi-Fu,LIAO Li-Fu,WANG Min,LIANG Jun,LI Can,XIN Qin,ZHANG Hui.Quantitative Study on the Lewis Base Property of MgO by Infrared Spectroscopy with Boric Acid Trimethyl Ester[J].Chinese Journal of Spectroscopy Laboratory,2005,22(6):1168-1171. |
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| Authors: | FU Shi-Fu LIAO Li-Fu WANG Min LIANG Jun LI Can XIN Qin ZHANG Hui |
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| Abstract: | The Lewis base property of MgO was studied quantitatively by infrared spectroscopy with boric acid trimethyl ester (BATE) as the molecular probe.MgO adsorbs BATE and makes the peak at 1360cm~(-1) split into two peaks at 1410cm~(-1) and 1300cm~(-1) and shift the peak at 1036cm~(-1) to 1060cm~(-1).Under low pressure,the intensities of the peaks are proportional to the pressure of BATE and to the amount of MgO.The results showed that MgO has a certain strength of Lewis base,and the adsorption of BATE on MgO is monomolecular chemical adsorption. |
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| Keywords: | MgO Boric Acid Trimethyl Ester Lewis Base Property IR Spectrum |
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