| 通过密度函数理论表征炭质吸附剂的孔径分布 |
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| 引用本文： | 刘振宇 樊彦贞. 通过密度函数理论表征炭质吸附剂的孔径分布[J]. 离子交换与吸附, 1998, 14(5): 405-410 |
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| 作者姓名： | 刘振宇 樊彦贞 |
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| 作者单位： | 中国科学院山西煤炭化学研究所!太原，030001，中国科学院山西煤化所煤转化国家重点实验室，中国科学院山西煤炭化学研究所!太原，030001，中国科学院山西煤炭化学研究所!太原，030001 |
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| 摘 要： | 通过密度函数理论（DFT-DensityFunctionalTheory）对炭质吸附剂的孔径分布进行了表征。该法以多孔固体上N2吸附分子模型为依据，用一种方法对多孔固体的孔径分布从微孔到大孔范围进行确定。本文用该法对自制的聚丙烯腈活性炭纤维、国产煤质活性炭及日本产活性炭微球等六种炭质吸附剂的孔径分布进行了表征。
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| 关 键 词： | 炭质吸附剂 吸附等温线 密度函数理论 孔径分布 |
CHARACTERIZATION OF PORE SIZE DISTRIBUTIONS ON CARBONACEOUS ADSORBENTS BY DENSTTY FUNCTIONAL THEORY |
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| Liu Zhenyu, Fan Yanzhen, Zheng Jingtang ,Wang Maozhang. CHARACTERIZATION OF PORE SIZE DISTRIBUTIONS ON CARBONACEOUS ADSORBENTS BY DENSTTY FUNCTIONAL THEORY[J]. Ion Exchange and Adsorption, 1998, 14(5): 405-410 |
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| Authors: | Liu Zhenyu Fan Yanzhen Zheng Jingtang Wang Maozhang |
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| Abstract: | Pore size distributions on carbonaceous adsorbents are characterized by DensityFunctional Theory. The method is based on a molecular model for the adsorption ofnitrogen in carbonaceous adsorbents. It allows pore size distributions to be determined over a wide range from micropores to macropores using a single analysismethod. In this study, pore size distributions of six kinds carbonaceous adsorbentsincluding polyacrylonitrile based activated carbon fibers prepared in our laboratory,coal and pitch activated carbon beads prepared in Japan were investigated. |
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| Keywords: | Carbonaceous adsorbents Adsorption isotherms Density FunctionalTheory Pore size distributions |
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