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| 各种孔结构活性炭吸附苯、环己烷、正戊烷和正己烷的~1H和~(13)C NMR研究 | |
| 引用本文： | 杜有如,沈联芳,孔渝华. 各种孔结构活性炭吸附苯、环己烷、正戊烷和正己烷的~1H和~(13)C NMR研究[J]. 分析测试学报, 1988, 0(2) |
| 作者姓名： | 杜有如 沈联芳 孔渝华 |
| 作者单位： | 中国科学院武汉物理研究所波谱与原子分子开放研究实验室 武汉(杜有如，沈联芳)，湖北省化学所 武汉(孔渝华) |
| 摘 要： | ~1H和~(13)C NMR研究证明被吸附在不同孔结构活性炭中的烃类以毛细管凝聚和吸附在固体表面两种状态存在。链状烷烃平铺地吸附在固体表面。被吸附烃与活性炭表面酸性基团的质子交换在弛豫过程中起着重要作用。 |
| 关 键 词： | 活性炭 被吸附烃的NMR 被吸附分子的自旋晶格弛豫时间 |
~1H and ~(13)C NMR Study of Adsorbed Hydrocarbons on Charcoals with Various Pore Structures |
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| Du Youru,Shen Lianfang,, Kong Yuhua Lab Maan Resonand Atom and Mol Phys Wuhan Institute of Physics,Academia Sinica,Wuhan. ~1H and ~(13)C NMR Study of Adsorbed Hydrocarbons on Charcoals with Various Pore Structures[J]. Journal of Instrumental Analysis, 1988, 0(2) | |
| Authors: | Du Youru Shen Lianfang & Kong Yuhua Lab Maan Resonand Atom Mol Phys Wuhan Institute of Physics Academia Sinica Wuhan |
| Abstract: | ~1H and ~(13)C NMR study shows that the adsorption mechanism of hydrocarbons in charcoals withvarious pore structures is capillary condensation in the micropores with diameter smaller than 30A assoclated with mono/multilayer adsorption on the solid surface of pores with diameter greaterthan 30 A_1 The adsorbed chain hydrocarbons lie flat on the solid surface. The exchange of protonon the surface acidic groups with the adsorbed species makes important contribution to the relaxa-tion process. |
| Keywords: | Charcoal NMR adsorbed hydrocarbons spin-lattice relaxation time of adsorbed molecules |
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