| NMR Revealed Activated Alumina-Water Interaction |
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| 引用本文： | ZHOURui ZHOUYan HUKai JIZhen-ping CHENGGong-zhen. NMR Revealed Activated Alumina-Water Interaction[J]. 武汉大学学报:自然科学英文版, 2005, 10(3): 572-576. DOI: 10.1007/BF02831148 |
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| 作者姓名： | ZHOURui ZHOUYan HUKai JIZhen-ping CHENGGong-zhen |
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| 作者单位： | CollegeofChemistryandMolecularSciences,WuhanUniversity,Wuhan430072,Hubei,China |
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| 基金项目： | SupportedbytheNationalNaturalScienceFoun dationofChina(20171035) |
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| 摘 要： | Three different spin-lattice relaxation times ( T1 ) of water were obtained in activated alumina-water slurry system, which indicate that there exist three states of water: bound water, pore water and bulk water. The chemical shift (δ11) decreases as the amount of water added to the system increases due to the differences in contribution of these three states of water in the samples. The δ11 value for adsorbed water decreases nearly linearly and T1 increases with elevating temperature, which result from the decrease in the content of bound water by the increase in thermal motion.
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| 关 键 词： | 氧化铝 泥浆 化学转换 温度条件 热运动 |
| 收稿时间： | 2004-05-15 |
NMR revealed activated alumina-water interaction |
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| Zhou Rui,Zhou Yan,Hu Kai,Ji Zhen-ping,Cheng Gong-zhen. NMR revealed activated alumina-water interaction[J]. Wuhan University Journal of Natural Sciences, 2005, 10(3): 572-576. DOI: 10.1007/BF02831148 |
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| Authors: | Zhou Rui Zhou Yan Hu Kai Ji Zhen-ping Cheng Gong-zhen |
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| Affiliation: | (1) College of Chemistry and Molecular Sciences, Wuhan University, 430072 Wuhan, Hubei, China |
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| Abstract: | Three different spin-lattice relaxation times (T 1) of water were obtained in activated alumina-water slurry system, which indicate that there exist three states of water: bound water, pore water and bulk water. The chemical shift (δ H) decreases as the amount of water added to the system increases due to the differences in contribution of these three states of water in the samples. Theδ H value for adsorbed water decreases nearly linearly andT 1 increases with elevating temperature, which result from the decrease in the content of bound water by the increase in thermal motion. Foundation item: Supported by the National Natural Science Foundation of China (20171035) Biography: ZHOU Rui (1977-), female, Master, research direction: surface chemistry. |
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| Keywords: | slurry water ~1H NMR alumina relaxation time |
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