一种串状有机金属骨架化合物纳米纤维及其合成方法和应用
High-load string-shaped MOF-199 nanofibers were prepared by electrospinning and in-situ growth methods, which solved the capacity performance gap and crystal orientation control problem of MOF electrospun materials in carbon capture applications, and achieved efficient adsorption and selective separation of CO2 and CH4 gases.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG UNIV
- Filing Date
- 2025-10-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing MOF electrospinning nanofiber materials have a 20-30% capacity performance gap in carbon capture applications, and it is difficult to control the crystal orientation of MOFs, which prevents the composite materials from fully realizing their advantages in gas separation performance.
A string-like MOF-199 nanofiber material with high loading capacity was prepared by electrospinning combined with in-situ growth. By finely controlling the crystal orientation of MOF, the adsorption kinetics and capacity performance were enhanced, and a design with both uniform structure and high crystal orientation selectivity was created.
It achieves a bidirectional improvement in the adsorption of CO2 and CH4 gases by MOF nanofiber materials, with a kinetic-adsorption capacity increase of 10-14%, high cycle stability, and gas separation performance significantly better than powdered MOF-199, with a separation coefficient as high as 23.88-25.92.
Smart Images
Figure CN120967681B_ABST