Adsorption and Diffusion of Carbon Dioxide on Metal-Organic Framework (MOF-5)

被引：306

作者：

Zhao, Zhenxia ^{[1
,2
]}

Li, Zhong ^{[2
]}

Lin, Y. S. ^{[1
]}

机构：

[1] Arizona State Univ, Dept Chem Engn, Tempe, AZ 85287 USA

[2] S China Univ Technol, Res Inst Chem Engn, Guangzhou 510640, Guangdong, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2009年 / 48卷 / 22期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

HYDROGEN ADSORPTION; FREQUENCY-RESPONSE; GAS-DIFFUSION; METHANE; KINETICS; SORPTION; DESIGN; HYDROCARBONS; EQUILIBRIUM; ISOTHERMS;

D O I：

10.1021/ie900665f

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Adsorption equilibrium and diffusion of CO2 on microporous metal-organic frameworks (MOF-5, or IRMOF-1) crystals were experimentally studied by the gravimetric method in the pressure range up to I atm. The MOF-5 crystal cubes of about 40-60 mu m in sizes were synthesized by the solvothermal method. Freundlich adsorption isotherm equation can fit well CO2 adsorption isotherrns on MOF-5, with isosteric heat of adsorption of about 34 kJ/mol. Diffusion coefficient of CO2 in the MOF-5 is in the range of 8.1-11.5 x 10(-9) cm(2)/s in 295-331K with activation energy of 7.61 kJ/mol. MOF-5 offers attractive adsorption properties as an adsorbent for separation of CO2 from flue gas.

引用

页码：10015 / 10020

页数：6

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