Affiliation:
1. College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics 211100 Nanjing China
2. School of Chemistry and Chemical Engineering Anhui University Hefei 230601 China
3. School of Information Engineering Chang'an University Xi'an 710064 China
4. Key Laboratory of Impact and Safety Engineering of Ministry of Education of China Ningbo University Ningbo 315211 China
5. School of Electronic Science and Engineering Nanjing University Nanjing 211100 China
Abstract
AbstractCorrelating metal–organic framework (MOF) synthesis processes and microwave absorption (MA) enhancement mechanisms is a pioneer project. Nevertheless, the correlation process still relies mainly on empirical doctrine, which hardly corresponds to the specific mechanism of the effect on the dielectric properties. Hereby, after the strategy of modulation of protonation engineering and solvothermal temperature in the synthesis route, the obtained sheet‐like self‐assembled nanoflowers were constructed. Porous structures with multiple heterointerfaces, abundant defects, and vacancies are obtained by controlled design of the synthesis procedure. The rearrangement of charges and enhanced polarization can be promoted. The designed electromagnetic properties and special nano–microstructures of functional materials have significant impact on their electromagnetic wave energy conversion effects. As a consequence, the MA performance of the samples has been enhanced toward broadband absorption (6.07 GHz), low thickness (2.0 mm), low filling (20%), and efficient loss (−25 dB), as well as being suitable for practical environmental applications. This work establishes the connection between the MOF‐derived materials synthesis process and the MA enhancement mechanism, which provides insight into various microscopic microwave loss mechanisms.
Funder
National Natural Science Foundation of China
Ministry of Industry and Information Technology of the People's Republic of China
Key Technologies Research and Development Program
Subject
Biomaterials,Biotechnology,General Materials Science,General Chemistry
Cited by
14 articles.
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