首页> 中文期刊> 《南京工业大学学报(自然科学版)》 >金属有机骨架材料MIL-101的合成及CO吸附性能

金属有机骨架材料MIL-101的合成及CO吸附性能

         

摘要

The effects of soil-structure interaction (SSI) on dynamic characteristics of energy dissipating structures were investigated. Motion equations of soil-structure interaction energy dissipating structure were established with the soil dynamic characteristics described by systematic lumped-parameter model. Two parameters , such as soil shear wave velocity and the ratio of building height to foundation width, were used to investigate the effects on the dynamic characteristics energy dissipating structures under different periods and damping ratios by complex mode theory. It could concluded that, when SSI is considered ,the first mode damping of structures without energy dissipation devices, increases when soil shear wave velocity decrease, while the contrary is the case for the structures with energy dissipation devices. Therefore, SSI had more effects on building with energy dissipation devices than building without devices.%采用水热法合成金属有机骨架材料MIL - 101,并利用X线衍射(XRD)、低温N2吸附等测试手段对合成的材料进行表征.结果表明:制备的MIL - 101的BET( Brunauer-Emmett-Teller)比表面积达到3142 m2/g,孔容为1.78 cm3/g.根据77 K下N2吸附等温线数据,采用巨正则蒙特卡洛法分析MIL - 101的孔径分布,其分析结果与文献所报道的数据吻合.考察了CO、N2混合体系在MIL - 101上的吸附性能,实验结果表明:MIL - 101结构中不饱和金属Cr3+提供的活性位能从混合气体中高效吸附分离CO,而且对CO的吸附容量达到45.0 cm3/g(298 K,0.1MPa),对CO的吸附容量约是NA吸附剂的2倍.

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