MOF derivatives anchored to multichannel hollow carbon fibers with gradient structures for corrosion resistance and efficient electromagnetic wave absorption DOI
Yuhang Cheng, Di Lan, Zirui Jia

et al.

Journal of Material Science and Technology, Journal Year: 2024, Volume and Issue: 216, P. 150 - 164

Published: Aug. 30, 2024

Language: Английский

Excellent Low‐Frequency Microwave Absorption and High Thermal Conductivity in Polydimethylsiloxane Composites Endowed by Hydrangea‐Like CoNi@BN Heterostructure Fillers DOI Open Access
Mukun He,

Xiao Zhong,

Xinghan Lu

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(48)

Published: Oct. 9, 2024

Abstract The advancement of thin, lightweight, and high‐power electronic devices has increasingly exacerbated issues related to electromagnetic interference heat accumulation. To address these challenges, a spray‐drying‐sintering process is employed assemble chain‐like CoNi flake boron nitride (BN) into hydrangea‐like CoNi@BN heterostructure fillers. These fillers are then composited with polydimethylsiloxane (PDMS) develop CoNi@BN/PDMS composites, which integrate low‐frequency microwave absorption thermal conductivity. When the volume fraction 44 vol% mass ratio BN 3:1, composites exhibit optimal performance in both achieve minimum reflection loss −49.9 dB effective bandwidth 2.40 GHz (3.92–6.32 GHz) at thickness 4.4 mm, fully covering n79 band (4.4–5.0 for 5G communications. Meanwhile, in‐plane conductivity ( λ ∥ ) 7.31 W m −1 K , ≈11.4 times (0.64 pure PDMS, 32% higher than that (CoNi/BN)/PDMS (5.52 same obtained through direct mixing.

Language: Английский

Citations

144
Tailoring Built‐In Electric Field in a Self‐Assembled Zeolitic Imidazolate Framework/MXene Nanocomposites for Microwave Absorption DOI
Zhenguo Gao, Aamir Iqbal,

Tufail Hassan

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(19)

Published: Jan. 30, 2024

Abstract Heterointerface engineering, which plays a pivotal role in developing advanced microwave‐absorbing materials, is employed to design zeolitic imidazolate framework (ZIF)–MXene nanocomposites. The ZIF–MXene composites are prepared by electrostatic self‐assembly of negatively charged titanium carbide MXene flakes and positively Co‐containing ZIF nanomaterials. This approach effectively creates abundant Mott–Schottky heterointerfaces exhibiting robust built‐in electric field (BIEF) effect, as evidenced experimental theoretical analyses, leading notable attenuation electromagnetic energy. Systematic manipulation the BIEF‐exhibiting heterointerface, achieved through topological modulation ZIF, proficiently alters charge separation, facilitates electron migration, ultimately enhances polarization relaxation loss, resulting exceptional wave absorption performance (reflection loss RL min = −47.35 dB effective bandwidth f E 6.32 GHz). present study demonstrates an innovative model system for elucidating interfacial mechanisms pioneers novel functional materials with characteristics spatial engineering.

Language: Английский

Citations

102
Perspectives of nitrogen-doped carbons for electromagnetic wave absorption DOI
Shijie Zhang, Di Lan, Jiajun Zheng

et al.

Carbon, Journal Year: 2024, Volume and Issue: 221, P. 118925 - 118925

Published: Feb. 10, 2024

Language: Английский

Citations

91
Mixed-Dimensional Assembly Strategy to Construct Reduced Graphene Oxide/Carbon Foams Heterostructures for Microwave Absorption, Anti-Corrosion and Thermal Insulation DOI Creative Commons

Beibei Zhan,

Yunpeng Qu, Xiaosi Qi

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: June 17, 2024

Abstract Considering the serious electromagnetic wave (EMW) pollution problems and complex application condition, there is a pressing need to amalgamate multiple functionalities within single substance. However, effective integration of diverse functions into designed EMW absorption materials still faces huge challenges. Herein, reduced graphene oxide/carbon foams (RGO/CFs) with two-dimensional/three-dimensional (2D/3D) van der Waals (vdWs) heterostructures were meticulously engineered synthesized utilizing an efficient methodology involving freeze-drying, immersing absorption, secondary followed by carbonization treatment. Thanks their excellent linkage effect amplified dielectric loss optimized impedance matching, 2D/3D RGO/CFs vdWs demonstrated commendable performances, achieving broad bandwidth 6.2 GHz reflection − 50.58 dB low matching thicknesses. Furthermore, obtained also displayed significant radar stealth properties, good corrosion resistance performances as well outstanding thermal insulation capabilities, displaying great potential in variable environments. Accordingly, this work not only straightforward method for fabricating heterostructures, but outlined powerful mixed-dimensional assembly strategy engineering multifunctional protection, aerospace other conditions.

Language: Английский

Citations

84
Dual strategy of A-site ion substitution and self-assembled MoS2 wrapping to boost permittivity for reinforced microwave absorption performance DOI
Ailing Feng, Di Lan, Jinkun Liu

et al.

Journal of Material Science and Technology, Journal Year: 2023, Volume and Issue: 180, P. 1 - 11

Published: Oct. 18, 2023

Language: Английский

Citations

80
Construction of three-dimensional conductive network and heterogeneous interfaces via different ratio for tunable microwave absorption DOI
Xiaolong Cao, Di Lan, Yan Zhang

et al.

Advanced Composites and Hybrid Materials, Journal Year: 2023, Volume and Issue: 6(6)

Published: Oct. 16, 2023

Language: Английский

Citations

77
State-of-the-art synthesis strategy for nitrogen-doped carbon-based electromagnetic wave absorbers: from the perspective of nitrogen source DOI
Xingliang Chen, Feng Zhang, Di Lan

et al.

Advanced Composites and Hybrid Materials, Journal Year: 2023, Volume and Issue: 6(6)

Published: Dec. 1, 2023

Language: Английский

Citations

71
Metal organic frameworks derived NixSey@NC hollow microspheres with modifiable composition and broadband microwave attenuation DOI
Nannan Wu, Beibei Zhao,

Yuanyuan Lian

et al.

Carbon, Journal Year: 2024, Volume and Issue: 226, P. 119215 - 119215

Published: May 4, 2024

Language: Английский

Citations

71
Modulation Engineering of Electromagnetic Wave Absorption Performance of Layered Double Hydroxides Derived Hollow Metal Carbides Integrating Corrosion Protection DOI Open Access

Zehua Zhou,

Xinfeng Zhou, Di Lan

et al.

Small, Journal Year: 2023, Volume and Issue: 20(8)

Published: Oct. 10, 2023

Abstract Layered double hydroxides (LDHs) with unique layered structure and atomic composition are limited in the field of electromagnetic wave absorption (EMA) due to their poor electrical conductivity lack dielectric properties. In this study, EMA performance anticorrosion hollow derived LDH composites improved by temperature control design using ZIF‐8 as a sacrifice template. Diverse regulation modes result different mechanisms for EMA. process, chemical reactions tune products construct refined optimize LDHs loss. Additionally, phase interfaces generated components impedance matching enhance interfacial polarization. The results show that prepared NCZ (Ni3ZnC0.7/Co3ZnC@C) has minimum reflection loss (RL min ) ‐58.92 dB thickness 2.4 mm maximum effective bandwidth (EAB max 7.36 GHz mm. Finally, its special composition, sample exhibits excellent This work offers essential knowledge designing engineering materials from metal organic framework (MOF) cutting‐edge nanostructures.

Language: Английский

Citations

69
Polydopamine-derived nitrogen-doped carbon coupled with MoSe2 nanosheets composites toward high-efficiency electromagnetic wave absorption DOI
Xiaopeng Li, Juhua Luo, Qibiao Wang

et al.

Carbon, Journal Year: 2024, Volume and Issue: 225, P. 119119 - 119119

Published: April 8, 2024

Language: Английский

Citations

65