Mono layer Adsorption Behavior of Hydrogen Isotopes on Microporous and Mesoporous Molecular Sieves

被引：10

作者：

Chu, Xiao-Zhong ^{[1
]}

Xu, Ji-Ming ^{[1
]}

Zhao, Yi-Jiang ^{[1
]}

Zhang, Wei-Guang ^{[1
]}

Chen, Zhi-Peng ^{[1
]}

Zhou, Shou-Yong ^{[1
]}

Zhou, Ya-Ping ^{[2
]}

Zhou, Li ^{[2
]}

机构：

[1] Huaiyin Normal Univ, Jiangsu Key Lab Chem Low Dimens Mat, Sch Chem & Chem Engn, Huaian 223300, Peoples R China

[2] Tianjin Univ, High Pressure Adsorpt Lab, State Key Lab Chem Engn, Tianjin 300072, Peoples R China

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2010年 / 55卷 / 07期

关键词：

PHYSISORPTION; CARBON;

D O I：

10.1021/je9008798

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The equilibrium adsorption amounts of hydrogen isotope gas and the Brunauer-Emmett-Teller (BET) surface area were measured at 77 K with different microporous and mesoporous molecular sieves. The results indicate that good linear relationships are observed between the amount adsorbed and the BET surface area at (0.02, 0.04 0.06, 0.08, 0.10, and 0.12) MPa for microporous or mesoporous adsorbents, which provide proof of the monolayer adsorption mechanism for hydrogen isotopes at supercritical temperatures. Effects of specific surface area and pore size are more important than the surface properties of adsorbents for hydrogen isotope storage with the physical adsorption method. The equilibrium adsorption difference between hydrogen and deuterium is increased with a decrease of pressure. Moreover, the adsorption capacity of hydrogen isotopes on mesoporous molecular sieves is smaller than that on microporous molecular sieves at the same temperature, pressure, and BET surface area.

引用

页码：2512 / 2516

页数：5

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