New polymolecular adsorption isotherm

New polymolecular adsorption isotherm
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新的多分子吸附等温线

DOI:
10.1016/0021-9797(91)90299-n
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发表时间:
1991
期刊:
影响因子:
--
通讯作者:
G. Aranovich
G. Aranovich
中科院分区:
--
文献类型:
--
作者:
G. Aranovich

文献摘要

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提出了一种新的多分子吸附等温线。它的主要优点是,不同于已知的等温线,它是定性足够的限制情况下,可以从一个一致的现实模型,并适合在一个广泛的浓度范围内的实验数据。使用新的等温线是合法的多分子吸附的蒸汽和吸附的解决方案与有限的溶解度的组件。在传统的术语中,新的等温线具有a a m= cx(1+ cx)(1− x)1 2的形式,其中x是相对浓度。这是第一个,目前唯一的等温线,这是定性正确的限制情况下。使用新的等温线,例如,在确定分散和多孔材料的表面积,使得有可能获得更多的证实和可靠的结果。
A new polymolecular adsorption isotherm is proposed. Its principal advantage is that, unlike the known isotherms, it is qualitatively adequate in limiting cases, can be derived from a consistent realistic model, and fits the experimental data in a broad concentration range. The use of the new isotherm is legitimate both for polymolecular adsorption of vapors and for adsorption from solutions with limited solubilities of components. In traditional terms, the new isotherm has the form a a m= cx (1+ cx)(1− x) 1 2, where x is relative concentration. This is the first, and at present the only isotherm which is qualitatively correct in limiting cases. The use of the new isotherm, eg, in determining the surface area of disperse and porous materials, makes it possible to obtain more substantiated and reliable results.