A microporous metal–organic framework with both open metal and Lewis basic pyridyl sites for highly selective C<sub>2</sub>H<sub>2</sub>/CH<sub>4</sub>and C<sub>2</sub>H<sub>2</sub>/CO<sub>2</sub>gas separation at room temperature
Hui XuDepartment of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, USAYabing HeDepartment of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, USAZhangjing ZhangCollege of Chemistry and Materials, Fujian Normal University, 3 Shangsan Road, Cangshang Region, Fuzhou, China 350007Shengchang XiangCollege of Chemistry and Materials, Fujian Normal University, 3 Shangsan Road, Cangshang Region, Fuzhou, China 350007Jianfeng CaiState Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, ChinaYuanjing CuiState Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, ChinaYu YangState Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, ChinaGuodong QianState Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, ChinaBanglin ChenDepartment of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, USA
2012en
ABI
Аннотация
To immobilize both open metal and Lewis basic pyridyl sites into a microporous metal–organic framework, Cu6(PDC)6·2.6H2O (UTSA-50) was solvothermally synthesized and characterized. The combination of open metal sites and Lewis basic pyridyl functional sites leads to a high acetylene adsorption enthalpy of 39.4 kJ mol−1. As a result, UTSA-50 is a very promising MOF material for the highly selective separation of C2H2/CH4 and C2H2/CO2 at room temperature with the highest C2H2/CH4 separation selectivity of 68 ever reported and moderately high acetylene uptake of 91 cm−1 g−1.
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