Use of Mercury Intrusion Data, Combined with Nitrogen Adsorption Measurements, as a Probe of Pore Network Connectivity

Use of Mercury Intrusion Data, Combined with Nitrogen Adsorption Measurements, as a Probe of Pore Network Connectivity
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DOI:
10.1021/la990250x
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发表时间:
1999-09
期刊:
影响因子:
3.9
通讯作者:
K. L. Murray;‡. A. N. A. Seaton-‡.-A.-N.-A.-Seaton-1443601605;M. A. Day
K. L. Murray;‡. A. N. A. Seaton-‡.-A.-N.-A.-Seaton-1443601605;M. A. Day
中科院分区:
化学2区
文献类型:
--
作者:
K. L. Murray;‡. A. N. A. Seaton-‡.-A.-N.-A.-Seaton-1443601605;M. A. Day

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中孔固体的孔网络的配位数可以使用基于逾渗理论的分析方法从其氮吸附和脱附等温线确定。然而,这些等温线的测量是耗时的,并且有问题的是非常接近氮气的本体冷凝压力。在本文中,我们证明,汞侵入和氮解吸共享相同的机制,使汞侵入曲线可以用来代替氮解吸等温线的连接性分析。
The coordination number of the pore network of a mesoporous solid can be determined from its nitrogen adsorption and desorption isotherms, using an analysis method based on percolation theory. However, measurement of these isotherms is time-consuming and problematical very close to the bulk condensation pressure of nitrogen. In this paper, we demonstrate that mercury intrusion and nitrogen desorption share the same mechanism so that the mercury intrusion curve can be used in place of the nitrogen desorption isotherm in the connectivity analysis.