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Hydrogen Adsorption on Metal-Organic Framework MOF-177 被引量:6

Hydrogen Adsorption on Metal-Organic Framework MOF-177
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摘要 This review summarizes the recent literature on the synthesis, characterization, and adsorption properties of meal-organic framework MOF-177. MOF-177 is a porous crystalline material that consists of Zn40 tetrahedrons connected with benzene tribenzoate (BTB) ligands, It is an ideal adsorbent with an ex- ceptionally high specific surface area (BET〉4500 m^2/g), a uniform micropore size dJstrJbutJon with a median pore diameter of 12.7 A, a large pore volume (2.65 cm^3/g), and very promising adsorption properties for hy- drogen storage and other gas separation and purification applications. A hydrogen adsorption amount of 19.6 wt.% on MOF-177 at 77 K and 100 bar was observed, and a CO2 uptake of 35 mmol/g on MOF-177 was measured at 45 bar and an ambient temperature. Other hydrogen properties (kinetics and heat of ad- sorption) along with adsorption of other gases including CO2, CO, CH4, and N2Oon MOF-177 were also be discussed. It was observed in experiments that MOF-177 adsorbent tends to degrade or decompose when it is exposed to moisture. Thermogravimetric analysis showed that the structure of MOF-177 remains intact at temperatures below 330℃ under a flow of oxygen, but decomposes to zinc oxide at 420℃. This review summarizes the recent literature on the synthesis, characterization, and adsorption properties of meal-organic framework MOF-177. MOF-177 is a porous crystalline material that consists of Zn40 tetrahedrons connected with benzene tribenzoate (BTB) ligands, It is an ideal adsorbent with an ex- ceptionally high specific surface area (BET〉4500 m^2/g), a uniform micropore size dJstrJbutJon with a median pore diameter of 12.7 A, a large pore volume (2.65 cm^3/g), and very promising adsorption properties for hy- drogen storage and other gas separation and purification applications. A hydrogen adsorption amount of 19.6 wt.% on MOF-177 at 77 K and 100 bar was observed, and a CO2 uptake of 35 mmol/g on MOF-177 was measured at 45 bar and an ambient temperature. Other hydrogen properties (kinetics and heat of ad- sorption) along with adsorption of other gases including CO2, CO, CH4, and N2Oon MOF-177 were also be discussed. It was observed in experiments that MOF-177 adsorbent tends to degrade or decompose when it is exposed to moisture. Thermogravimetric analysis showed that the structure of MOF-177 remains intact at temperatures below 330℃ under a flow of oxygen, but decomposes to zinc oxide at 420℃.
作者 Dipendu Saha
出处 《Tsinghua Science and Technology》 SCIE EI CAS 2010年第4期363-376,共14页 清华大学学报(自然科学版(英文版)
关键词 metal-organic framework MOF-177 ADSORPTION hydrogen storage metal-organic framework MOF-177 adsorption hydrogen storage
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