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Two-Dimensional CNPs Superstructures Derived from Metal–Organic Frameworks for Electromagnetic Wave Absorption

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 superstructur...

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Published in:ACS applied materials & interfaces 2024-11, Vol.16 (47), p.65173-65184
Main Authors: Liu, Zequn, Zhao, Honghong, Yao, Junru, Liang, Minjie, Sun, Youyi, Gu, Ning, Cao, Yang
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container_end_page 65184
container_issue 47
container_start_page 65173
container_title ACS applied materials & interfaces
container_volume 16
creator Liu, Zequn
Zhao, Honghong
Yao, Junru
Liang, Minjie
Sun, Youyi
Gu, Ning
Cao, Yang
description 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.
doi_str_mv 10.1021/acsami.4c14804
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subjects Functional Nanostructured Materials (including low-D carbon)
title Two-Dimensional CNPs Superstructures Derived from Metal–Organic Frameworks for Electromagnetic Wave Absorption
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