Selective coding dielectric genes based on proton tailoring to improve microwave absorption of MOFs

Jiaqi Tao; Linling Xu; Haoshan Jin; Yansong Gu; Jintang Zhou; Zhengjun Yao; Xuewei Tao; Ping Chen; Dinghui Wang; Zhong Li; Hongjing Wu

Advanced Powder Materials (Jan 2023)

Selective coding dielectric genes based on proton tailoring to improve microwave absorption of MOFs

Jiaqi Tao,
Linling Xu,
Haoshan Jin,
Yansong Gu,
Jintang Zhou,
Zhengjun Yao,
Xuewei Tao,
Ping Chen,
Dinghui Wang,
Zhong Li,
Hongjing Wu

Affiliations

Jiaqi Tao: Key Laboratory of Material Preparation and Protection for Harsh Environment, Ministry of Industry and Information Technology, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211100, China
Linling Xu: Key Laboratory of Material Preparation and Protection for Harsh Environment, Ministry of Industry and Information Technology, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211100, China
Haoshan Jin: Key Laboratory of Material Preparation and Protection for Harsh Environment, Ministry of Industry and Information Technology, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211100, China
Yansong Gu: Key Laboratory of Material Preparation and Protection for Harsh Environment, Ministry of Industry and Information Technology, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211100, China
Jintang Zhou: Key Laboratory of Material Preparation and Protection for Harsh Environment, Ministry of Industry and Information Technology, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211100, China; Corresponding author.
Zhengjun Yao: Key Laboratory of Material Preparation and Protection for Harsh Environment, Ministry of Industry and Information Technology, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211100, China; Corresponding author.
Xuewei Tao: School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing, 211167, China
Ping Chen: National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, China
Dinghui Wang: National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, China
Zhong Li: Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China; School of Engineering, RMIT University, Melbourne, 3000, Australia; Corresponding author. Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, Sichuan, PR China.
Hongjing Wu: MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, China; Corresponding author.

Journal volume & issue: Vol. 2, no. 1
p. 100091

Abstract

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Regulating dielectric genes of hollow metal-organic frameworks is a milestone project for microwave absorption (MA). However, there is still a bottleneck in deciphering the contribution of various dielectric genes, making it hard to expand the MA potential from selective encoding gene sequences. Herein, a custom-made proton tailoring strategy is used to build a controllable cavity, and meticulously designed thermodynamic regulation promotes the rearrangement of carbon atoms from disorder to order, thus enhancing the characteristics of charge transfer. Meanwhile, the defect-configuration transformation from heteroatom to vacancy and geometric configuration of hollow structure increase the polarization-related dielectric genes. Therefore, MA performance is enhanced towards broadband absorption (6.6 GHz, 1.78 mm) and high-efficiency loss (−62.5 dB), making samples suitable for complex open electromagnetic environments. This work realizes the tradeoff between dielectric gene sequences and provides a profound insight into the functions and sources of various microwave loss mechanisms.

Published in Advanced Powder Materials

ISSN: 2772-834X (Online)
Publisher: KeAi Communications Co. Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/advanced-powder-materials/

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