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Updated: Jun 7, 2025
A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks
Published on: April 28, 2023
Two-Dimensional CNPs Superstructures Derived from Metal-Organic Frameworks for Electromagnetic Wave Absorption
Zequn Liu1, Honghong Zhao1, Junru Yao2
1School of Materials Science and Technology, North University of China, Taiyuan 030051, P. R. China.
Abstract:
Carbon nanoparticles (CNPs) derived from metal-organic frameworks (ZIF-8) are synthesized, which are further self-assembled into mono- or bilayer superstructures for electromagnetic (EM) wave absorption. Furthermore, the effect of ZIF-8 morphology (cubic or rhombic dodecahedral) on the superstructure and EM absorption performance of CNPs is investigated. The as-prepared cubic bilayer superstructure exhibits a higher BET surface area of 526.1 m2/g and a higher pore volume of 0.232 cm3/g than the rhombic dodecahedral monolayer superstructure (30.0 m2/g and 0.051 cm3/g, respectively). As a result, the two-dimensional CNPs with a bilayer structure are able to deliver the highest EM absorption performance with an effective absorption bandwidth of 6.2 GHz at a thickness of merely 2.4 mm. This work provides a new approach to designing and preparing high-performance EM wave absorption materials.
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