Oxygen Vacancy‐Induced Dielectric Polarization Prevails in the Electromagnetic Wave‐Absorbing Mechanism for Mn‐Based MOFs‐Derived Composites
Qingdao University · Northwestern Polytechnical University
Abstract
Abstract Polymeric metal‐organic framework (MOF)‐derived composites are promising functional materials because of their exceptional chemical homogeneity, designable components, and adjustable pore size. The modulation of oxygen and Mn vacancies via the introduction of heteroatoms and changes in the annealing temperature in MOFs‐derived composites can be a possible solution to investigate the polarization loss mechanism, which facilitates the improvement of electromagnetic loss capacity. Herein, the design of laminate‐stacked sphere‐shaped trimetallic CoNiMn‐MOFs is presented. The derived CoNi/MnO@C composites retain the original topography of the MOFs. The concentration of oxygen vacancies increases with the…
Citation impact
- FWCI
- 25.70
- Percentile
- 100%
- References
- 67
Authors
5Topics & keywords
- Materials science
- Annealing (glass)
- Dielectric
- Reflection loss
- Vacancy defect
- Oxygen
- Dielectric loss
- Composite material