Design, Synthesis And Performance Study Of Fcu/sra Topology-oriented Amide Functionalized MOF Compounds

Environmental and energy issues caused by climate change are major problems faced by our modern society at present.To alleviate this situation,CO2 capture and the utilization of clean energy are recognized as effective solutions.Natural gas,mainly composed of methane,is an important clean energy gas and is expected to replace traditional fossil energy in the future.However,the efficient storage of natural gas is a key issue hindering its widespread use.MOFs as an emerging porous solid material,has shown potential application in adsorbing natural gas.My thesis is focusing on"Design,synthesis and properties of series amide-functionalized MOFs based on zirconium and indium-containing molecular building blocks" which has been presented in two parts.(1)In the first part,MOFs(1,1-(OH)2,1-(Cl)2,1-(CH3)2)have been designed and synthesized by virtue of the utilizations of oxamide-functional organic linkers,which were characterized by single crystal X-ray diffraction,powder X-ray diffraction,thermal gravimetric analysis and carbon capture as well as methane adsorption measurements.MOFs(1,1-(OH)2,1-(C1)2,1-(CH3)2)are all isoreticular compounds,and there are two cages of octahedron and tetrahedron in three-dimensional structure.In tenns of performance,MOFs exhibit microporous sorption isotherm and capabilities toward carbon capture and natural gas storage under low pressure conditions.Interestingly,the compounds have a high methane volume capacity and working capacity at room temperature under high pressure conditions.(2)In the second part,MOFs(2-(OH)2,2-(Cl)2,2-(CH3)2)have been designed and synthesized by virtue of the utilizations of oxamide-functional organic linkers,which were characterized by single crystal X-ray diffraction,powder X-ray diffraction,thermal gravimetric analysis and sorption measurements.MOFs(2-(OH)2,2-(Cl)2,2-(CH3)2)are composed of zigzag ladder,Regarding the properties,the compounds display "narrow pore phase" microporous sorption isotherm and capabilities toward carbon capture and natural gas storage.