Construction of binary assembled MOF-derived nanocages with dual-band microwave absorbing properties

Fei Wu; Lingyun Wan; Ting Wang; Muhammad Rizwan Tariq; Tariq Shah; Pei Liu; Qiuyu Zhang; Baoliang Zhang

doi:10.1016/j.jmst.2021.11.013

Construction of binary assembled MOF-derived nanocages with dual-band microwave absorbing properties

Fei Wu, Lingyun Wan, Ting Wang, Muhammad Rizwan Tariq, Tariq Shah, Pei Liu, Qiuyu Zhang, Baoliang Zhang

化学与化工学院

科研成果: 期刊稿件 › 文章 › 同行评审

39 引用（Scopus）

摘要

It is challenging to prepare a binary assembled metal-organic framework (MOF) by anisotropic epitaxial growth method. Besides, nanocages (NCs) with hollow structures are often constructed to improve microwave absorbing abilities. Herein, we combine the selective epitaxial growth and hollow engineering technologies to fabricate hybrid MOF-derived NCs. Benefiting from the unique nanocage/porous structure, complementary magnetic/dielectric components and suitable impedance matching characteristics, the optimized absorber (CoNi/TiO₂@PC-NCs) exhibits unique microwave absorbing properties. It is worth noting that the minimum reflection loss (RL_min) of the absorber reaches -65.3 dB, and the overall effective absorption bandwidth (EAB, RL < -10 dB) covers 15.1 GHz (2.9–18 GHz). The maximum EAB under a single thickness covers 4.4 GHz, displaying skipping dual-band coverages at both high and low frequencies. This work might provide a novel perspective for the synthesis of assembled MOF-derived absorbers.

源语言	英语
页（从-至）	36-48
页数	13
期刊	Journal of Materials Science and Technology
卷	117
DOI	https://doi.org/10.1016/j.jmst.2021.11.013
出版状态	已出版 - 1 8月 2022

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title = "Construction of binary assembled MOF-derived nanocages with dual-band microwave absorbing properties",

abstract = "It is challenging to prepare a binary assembled metal-organic framework (MOF) by anisotropic epitaxial growth method. Besides, nanocages (NCs) with hollow structures are often constructed to improve microwave absorbing abilities. Herein, we combine the selective epitaxial growth and hollow engineering technologies to fabricate hybrid MOF-derived NCs. Benefiting from the unique nanocage/porous structure, complementary magnetic/dielectric components and suitable impedance matching characteristics, the optimized absorber (CoNi/TiO2@PC-NCs) exhibits unique microwave absorbing properties. It is worth noting that the minimum reflection loss (RLmin) of the absorber reaches -65.3 dB, and the overall effective absorption bandwidth (EAB, RL < -10 dB) covers 15.1 GHz (2.9–18 GHz). The maximum EAB under a single thickness covers 4.4 GHz, displaying skipping dual-band coverages at both high and low frequencies. This work might provide a novel perspective for the synthesis of assembled MOF-derived absorbers.",

keywords = "Epitaxial growth, Microwave absorption, MOF, Nanocage, Porous structure",

author = "Fei Wu and Lingyun Wan and Ting Wang and Tariq, {Muhammad Rizwan} and Tariq Shah and Pei Liu and Qiuyu Zhang and Baoliang Zhang",

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year = "2022",

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doi = "10.1016/j.jmst.2021.11.013",

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T1 - Construction of binary assembled MOF-derived nanocages with dual-band microwave absorbing properties

AU - Wu, Fei

AU - Wan, Lingyun

AU - Wang, Ting

AU - Tariq, Muhammad Rizwan

AU - Shah, Tariq

AU - Liu, Pei

AU - Zhang, Qiuyu

AU - Zhang, Baoliang

PY - 2022/8/1

Y1 - 2022/8/1

N2 - It is challenging to prepare a binary assembled metal-organic framework (MOF) by anisotropic epitaxial growth method. Besides, nanocages (NCs) with hollow structures are often constructed to improve microwave absorbing abilities. Herein, we combine the selective epitaxial growth and hollow engineering technologies to fabricate hybrid MOF-derived NCs. Benefiting from the unique nanocage/porous structure, complementary magnetic/dielectric components and suitable impedance matching characteristics, the optimized absorber (CoNi/TiO2@PC-NCs) exhibits unique microwave absorbing properties. It is worth noting that the minimum reflection loss (RLmin) of the absorber reaches -65.3 dB, and the overall effective absorption bandwidth (EAB, RL < -10 dB) covers 15.1 GHz (2.9–18 GHz). The maximum EAB under a single thickness covers 4.4 GHz, displaying skipping dual-band coverages at both high and low frequencies. This work might provide a novel perspective for the synthesis of assembled MOF-derived absorbers.

AB - It is challenging to prepare a binary assembled metal-organic framework (MOF) by anisotropic epitaxial growth method. Besides, nanocages (NCs) with hollow structures are often constructed to improve microwave absorbing abilities. Herein, we combine the selective epitaxial growth and hollow engineering technologies to fabricate hybrid MOF-derived NCs. Benefiting from the unique nanocage/porous structure, complementary magnetic/dielectric components and suitable impedance matching characteristics, the optimized absorber (CoNi/TiO2@PC-NCs) exhibits unique microwave absorbing properties. It is worth noting that the minimum reflection loss (RLmin) of the absorber reaches -65.3 dB, and the overall effective absorption bandwidth (EAB, RL < -10 dB) covers 15.1 GHz (2.9–18 GHz). The maximum EAB under a single thickness covers 4.4 GHz, displaying skipping dual-band coverages at both high and low frequencies. This work might provide a novel perspective for the synthesis of assembled MOF-derived absorbers.

KW - Epitaxial growth

KW - Microwave absorption

KW - MOF

KW - Nanocage

KW - Porous structure

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U2 - 10.1016/j.jmst.2021.11.013

DO - 10.1016/j.jmst.2021.11.013

M3 - 文章

AN - SCOPUS:85124376521

SN - 1005-0302

VL - 117

SP - 36

EP - 48

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

ER -

Construction of binary assembled MOF-derived nanocages with dual-band microwave absorbing properties

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