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Ultralight MOF-Derived Ni(3)S(2)@N, S-Codoped Graphene Aerogels for High-Performance Microwave Absorption
To develop high-performance microwave absorption materials with the features of lightweight, thin thickness, broad bandwidth, and strong absorption, an ultralight Ni(3)S(2)@N, S-codoped graphene aerogel with a density of 13.5 mg/cm(3) has been fabricated by the use of metal-organic frameworks (MOFs)...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8880684/ https://www.ncbi.nlm.nih.gov/pubmed/35214984 http://dx.doi.org/10.3390/nano12040655 |
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author | Yu, Wenjing Liu, Bo Zhao, Xiaojiao |
author_facet | Yu, Wenjing Liu, Bo Zhao, Xiaojiao |
author_sort | Yu, Wenjing |
collection | PubMed |
description | To develop high-performance microwave absorption materials with the features of lightweight, thin thickness, broad bandwidth, and strong absorption, an ultralight Ni(3)S(2)@N, S-codoped graphene aerogel with a density of 13.5 mg/cm(3) has been fabricated by the use of metal-organic frameworks (MOFs) to directly initiate the gelation of graphene oxide strategy. In such a strategy, dual-functional 1D Ni-MOF nanorods not only act as the gelation agent but also afford the doping elements (N and S) originated from the organic species and the precursor for metal sulfide. Due to the synergistic effects of good impedance matching and multiple losses, the optimal reflection loss (RL) of as-prepared Ni(3)S(2)@N, S-codoped graphene aerogel reaches −46.9 dB at 17.1 GHz with only 2.0 mm and ultralow filling content (1.75 wt%). The maximum effective absorption bandwidth (EAB) reaches 6.3 GHz (11.7–18.0 GHz) at 2.38 mm, covering the whole Ku band. Moreover, the value of EAB with the RL less than −30 dB can be tuned to 12.2 GHz (5.8–18 GHz) at the absorber thickness ranging from 1.9 to 5.0 mm. This work provides insight for rational design and fabrication of multicomponent-containing graphene aerogels, showing the potential application in lightweight and high-performance microwave absorption. |
format | Online Article Text |
id | pubmed-8880684 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-88806842022-02-26 Ultralight MOF-Derived Ni(3)S(2)@N, S-Codoped Graphene Aerogels for High-Performance Microwave Absorption Yu, Wenjing Liu, Bo Zhao, Xiaojiao Nanomaterials (Basel) Article To develop high-performance microwave absorption materials with the features of lightweight, thin thickness, broad bandwidth, and strong absorption, an ultralight Ni(3)S(2)@N, S-codoped graphene aerogel with a density of 13.5 mg/cm(3) has been fabricated by the use of metal-organic frameworks (MOFs) to directly initiate the gelation of graphene oxide strategy. In such a strategy, dual-functional 1D Ni-MOF nanorods not only act as the gelation agent but also afford the doping elements (N and S) originated from the organic species and the precursor for metal sulfide. Due to the synergistic effects of good impedance matching and multiple losses, the optimal reflection loss (RL) of as-prepared Ni(3)S(2)@N, S-codoped graphene aerogel reaches −46.9 dB at 17.1 GHz with only 2.0 mm and ultralow filling content (1.75 wt%). The maximum effective absorption bandwidth (EAB) reaches 6.3 GHz (11.7–18.0 GHz) at 2.38 mm, covering the whole Ku band. Moreover, the value of EAB with the RL less than −30 dB can be tuned to 12.2 GHz (5.8–18 GHz) at the absorber thickness ranging from 1.9 to 5.0 mm. This work provides insight for rational design and fabrication of multicomponent-containing graphene aerogels, showing the potential application in lightweight and high-performance microwave absorption. MDPI 2022-02-16 /pmc/articles/PMC8880684/ /pubmed/35214984 http://dx.doi.org/10.3390/nano12040655 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Yu, Wenjing Liu, Bo Zhao, Xiaojiao Ultralight MOF-Derived Ni(3)S(2)@N, S-Codoped Graphene Aerogels for High-Performance Microwave Absorption |
title | Ultralight MOF-Derived Ni(3)S(2)@N, S-Codoped Graphene Aerogels for High-Performance Microwave Absorption |
title_full | Ultralight MOF-Derived Ni(3)S(2)@N, S-Codoped Graphene Aerogels for High-Performance Microwave Absorption |
title_fullStr | Ultralight MOF-Derived Ni(3)S(2)@N, S-Codoped Graphene Aerogels for High-Performance Microwave Absorption |
title_full_unstemmed | Ultralight MOF-Derived Ni(3)S(2)@N, S-Codoped Graphene Aerogels for High-Performance Microwave Absorption |
title_short | Ultralight MOF-Derived Ni(3)S(2)@N, S-Codoped Graphene Aerogels for High-Performance Microwave Absorption |
title_sort | ultralight mof-derived ni(3)s(2)@n, s-codoped graphene aerogels for high-performance microwave absorption |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8880684/ https://www.ncbi.nlm.nih.gov/pubmed/35214984 http://dx.doi.org/10.3390/nano12040655 |
work_keys_str_mv | AT yuwenjing ultralightmofderivedni3s2nscodopedgrapheneaerogelsforhighperformancemicrowaveabsorption AT liubo ultralightmofderivedni3s2nscodopedgrapheneaerogelsforhighperformancemicrowaveabsorption AT zhaoxiaojiao ultralightmofderivedni3s2nscodopedgrapheneaerogelsforhighperformancemicrowaveabsorption |