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Grabisorp 120 用于 研究室温条件下通过水蒸气吸附表征硅材料的孔特性/孔径分析

发布时间: 2018-04-02 10:03 来源: Gravite Science

下载地址: Grabisorp 120 用于 研究室温条件下通过水蒸气吸附表征硅材料的孔特性/孔径分析


Characterization of mesoporous materials today is routinely performed recording the adsorption isotherm of nitro gen at 77 K. The pore size distribution (PSD) can subsequently be determined using either thermodynamics or statisticalmechanics based approaches. While nitrogen has evolved as the reference adsorptive, other gases are often used to extractmore information from the isotherm. This contribution is focused on the calculation of a PSD from the water vapor isotherm.
It is demonstrated that water adsorption provides accurate results comparable to the standard nitrogen adsorption.


使用水蒸气吸附来表征孔分布可以和氮气77K 的数据进行比较。


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