To systematically study the effect of Lewis acid sites(LASs)and Lewis base sites(LBSs)in MOF materials for the CO_(2)cycloaddition reaction,four isomorphous copper polyhedron-based MOFs(Cu-PMOFs),JLU-Liu20,JLU-Liu21,J...To systematically study the effect of Lewis acid sites(LASs)and Lewis base sites(LBSs)in MOF materials for the CO_(2)cycloaddition reaction,four isomorphous copper polyhedron-based MOFs(Cu-PMOFs),JLU-Liu20,JLU-Liu21,JLU-Liu22 and JLU-Liu46 with different amounts of LASs and LBSs were selected to investigate their CO_(2)fixation catalytic performance.It is commendable that the catalytic capabilities of the four Cu-PMOFs exceed that of most reported MOF-based catalysts.展开更多
A polyhedral metal-organic framework(MOF)JLU-Liu40-In based on dual secondary building units(SBUs)of mononuclear and binuclear paddlewheel indium has been prepared with a nitrogen-rich tetracarboxylic acid ligand unde...A polyhedral metal-organic framework(MOF)JLU-Liu40-In based on dual secondary building units(SBUs)of mononuclear and binuclear paddlewheel indium has been prepared with a nitrogen-rich tetracarboxylic acid ligand under solvothermal conditions.Since the framework possesses large surface areas with multiple polyhedral cages,abundant open metal sites(OMSs)and Lewis basic sites(LBSs),it exhibits high performance for gas adsorption.In addition,through post-synthetic metal-ion metathesis in a single-crystal-to-single-crystal(SCSC)process,JLU-Liu40-In/Cu has been obtained by selectively substituting the paddlewheel In(Ⅲ)ions with Cu(Ⅱ)ions without replacing the mononuclear In(Ⅲ).The framework remains in the form of a single crystal throughout the process.It is worth noting that the metal-ion metathesis approach constructs JLU-Liu40-In/Cu with a significant improvement in thermal stability and gas sorption and separation.展开更多
基金supported by the National Natural Science Foundation of China(No.21771078 and 21621001)the 111 Project(B17020)the National Key Research and Development Program of China(2016YFB0701100).
文摘To systematically study the effect of Lewis acid sites(LASs)and Lewis base sites(LBSs)in MOF materials for the CO_(2)cycloaddition reaction,four isomorphous copper polyhedron-based MOFs(Cu-PMOFs),JLU-Liu20,JLU-Liu21,JLU-Liu22 and JLU-Liu46 with different amounts of LASs and LBSs were selected to investigate their CO_(2)fixation catalytic performance.It is commendable that the catalytic capabilities of the four Cu-PMOFs exceed that of most reported MOF-based catalysts.
基金financial support from the National Natural Science Foundation of China(No.21771078 and 21621001)the 111 Project(B17020)+2 种基金the National Key Research and Development Program of China(2016YFB0701100)the Fundamental Research Funds for the Central Universities of Ocean University of China(201813031)the Shandong Province Natural Foundation of China(ZR2019BB033).
文摘A polyhedral metal-organic framework(MOF)JLU-Liu40-In based on dual secondary building units(SBUs)of mononuclear and binuclear paddlewheel indium has been prepared with a nitrogen-rich tetracarboxylic acid ligand under solvothermal conditions.Since the framework possesses large surface areas with multiple polyhedral cages,abundant open metal sites(OMSs)and Lewis basic sites(LBSs),it exhibits high performance for gas adsorption.In addition,through post-synthetic metal-ion metathesis in a single-crystal-to-single-crystal(SCSC)process,JLU-Liu40-In/Cu has been obtained by selectively substituting the paddlewheel In(Ⅲ)ions with Cu(Ⅱ)ions without replacing the mononuclear In(Ⅲ).The framework remains in the form of a single crystal throughout the process.It is worth noting that the metal-ion metathesis approach constructs JLU-Liu40-In/Cu with a significant improvement in thermal stability and gas sorption and separation.
