Kaixia Yang

Zhejiang Normal University

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Wenhua Wu

Zhejiang Normal University

Meiwan Ying

Zhejiang Normal University

Guoxiu Tong

Zhejiang Normal University

Xing Lu

Sichuan University

Baoxin Fan

Zhejiang Normal University

Dabo Chen

Hunan University

Ran Ji

Zhejiang Normal University

Xiaojuan Wang

Northeastern University

Lishan Wu

Zhejiang Normal University

Fanjie Zhou

Zhejiang Normal University

Cooperative Institutions

Zhejiang Normal University

Fudan University

Chinese Academy of Sciences

Huazhong University of Science and Technology

Materials Science & Engineering

Nankai University

Collaborative Innovation Center of Chemistry for Energy Materials

University of Hong Kong

State Council of the People's Republic of China

Dalian University of Technology

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Defect and interface co-steering ultra-wide microwave absorption and superior thermal conductance of TiO2/Fe/C nanocomposites

Applied Surface Science (2022)

Ran Ji Xing Lu Kaixia Yang Meiwan Ying Lishan Wu

Titanium Dioxide

10.1016/j.apsusc.2022.155207

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Citations (39)

Defect-steering the prominent thermal conduction, microwave absorption, and electrical insulation of porous g-C3N4 nanofibers

Carbon (2024)

Kaixia Yang Baoxin Fan Yang Yi-jun Shiyang Cai Meiwan Ying

Phonon scattering

10.1016/j.carbon.2024.118849

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Citations (21)

Synergistically enhanced heat conductivity-microwave absorption capabilities of g-C3N4@Fe@C hollow micro-polyhedra via interface and composition modulation

Chemical Engineering Journal (2022)

Baoxin Fan Xing Lu Kaixia Yang Fanjie Zhou Qianmei He

10.1016/j.cej.2022.138492

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Citations (68)

Defect and Interface Co-Steering Ultra-Wide Microwave Absorption and Superior Thermal Conductance of Tio 2 /Fe/C Nanocomposites

SSRN Electronic Journal (2022)

Ran Ji Xing Lu Kaixia Yang Meiwan Ying Lishan Wu

To solve the problems of electromagnetic interference and heat dissipation generated in miniaturized and highly integrated modern electronics, we pioneered the use of TiO2 /Fe/C nanocomposites as advanced heat conduction-microwave absorption integrated materials (HCMWAIMs). The TiO 2 /Fe/C nanocomposites were produced by a simple one-step pyrolyzation route using pentacarbonyle (Fe(CO) 5 ) as C and Fe sources and nanoscale titanium dioxide (P25) as a precursor. The phase structure, Ti/Fe atomic ratios, and defects of the TiO 2 /Fe/C nanocomposites were expediently adjusted by controlling the Fe(CO) 5 volume. In the case where the Fe(CO) 5 volume was increased, the electric conductivity increased linearly with the increasing Fe/Ti atomic ratio, while the heat conductivity changed in a reversed U shape. Results showed that the TiO 2 /Fe/C nanocomposites prepared by the combination of TiO2 with Fe and C possess higher heat conductivity (1.870 W/(m×K)), excellent electric insulation (0.593 S/m), larger ABW/d values 5.6 GHz/mm), higher absorption (−42.59 dB), and thinner films (1.2~2.1 mm) than other previously reported materials. The excellent comprehensive capabilities result from the combined action of interfaces and defects. The as-obtained TiO 2 /Fe/C nanocomposites are expected to be efficient HCMWAIMs used in electronic devices.

Interface (matter)

10.2139/ssrn.4164460

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Salt-templated graphene nanosheet foams filled in silicon rubber toward prominent EMI shielding effectiveness and high thermal conductivity

Carbon (2023)

Baoxin Fan Xing Lu Kaixia Yang Yijun Yang Fanjie Zhou

Nanosheet

Graphene foam

10.1016/j.carbon.2023.03.022

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Citations (60)

Synchronous achievement of ultra-wideband microwave absorption and high thermal conduction in spongy TiO₂-based magnetic composites via constructing magnetic/dielectric double loss and phonon/electron co-transmission

Journal of Materials Chemistry C (2024)

Qibin Yao Kang Fu Ran Ji Meiwan Ying Yijun Yang

The development of multifunctional materials with excellent electromagnetic wave (EMW) absorption and high thermal conduction is a continuing concern in answer to the critical EM interference and thermal dissipation problems. Herein, we construct spongy TiO2@Ni@C and TiO2@CoTiO3@Co@C composites with magnetic-dielectric double-loss and electron–phonon co-transmission via a facile hydrothermal-soaking–annealing route. The thermal/magnetic/electrical/EMW absorptive capabilities of the products were facilely tuned by controlling the Ni2+/Ti4+ and Co2+/Ti4+ molar ratios (φ) to adjust their Ni0/Co0 content, defects, and texture. The electroconductibility, thermal conductivity (TC), and EMW absorption performance (EMWAP) of the products vary directly as the φ increases. Moreover, the spongy TiO2@Ni@C composites produced at φ = 2.45 : 1 exhibit a high TC value (3.38 W m−1 K−1) and outstanding EMWAP (ABW/d = 5.14 GHz mm−1; RL = −55 dB; 30% load) in comparison with other reported materials. The synchronously boosted properties are due to the combination of TiO2@C with Ni and Co into spongy porous structures, which not simply improves the attenuation and matching capabilities of the products, but also constructs a 3D interlinked continuous path for phonon/electron co-transmission. The superior comprehensive capabilities demonstrate that the as-obtained TiO2@Ni@C and TiO2@CoTiO3@Co@C composites are promising candidates for application in electronic packaging as EMW absorbing and thermally conductive fillers.

Dielectric loss

10.1039/d3tc03886f

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Citations (9)

Improving the incompatibility between electromagnetic and thermal properties of CNF/Co composites via constructing 3D interconnected frameworks, double hot carriers, and multiple losses

Journal of Alloys and Compounds (2024)

Meiwan Ying Feifei You Yijun Yang Kaixia Yang Shiyang Cai

Dielectric loss

Reflection loss

10.1016/j.jallcom.2024.173776

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Citations (5)

Confining Magnetic Response by the Surface Reorganization of Buckling Permalloy Microspheres for Boosting Microwave Absorption

ACS Nano (2025)

Xiaofen Yang Zhengchen Wu Ke Pei Yuetong Qian Xiaowei Lv

Sharp corners and edges with high surface curvature provide low-dimensional nanosized materials with special static magnetic properties. However, the surface engineering of their high-frequency magnetic response remains challenging, and the underlying mechanism requires further clarification. In this study, we propose a template-aided surface reorganization strategy for integrating surfaces with different curvatures into one permalloy architecture. The high-curvature surface demonstrates a dramatic variation in localized magnetic moments and confines the coupling of magnetic flux lines owing to high anisotropy, which helps concentrate magnetic energy absorption and dissipation. In addition, the magnetic resonances of multiple surfaces were superimposed by the spin-wave interaction for enhancing magnetic loss capacity, which cooperates with amorphous/crystalline interfacial polarization to achieve a satisfactory dielectric–magnetic synergistic electromagnetic wave (EMW) absorption performance. The reflectance loss values increased from −13.4 dB for microspheres to −49.7 dB for surface-restructured ones. Remarkably, the effective absorption bandwidth can be extended to 7.68 GHz with a matching thickness of 2.0 mm. This advancement presents new possibilities for an elaborate design of magnetic EMW absorbers and establishes a basis for comprehending a complex magnetic response mechanism.

Permalloy

Boosting

10.1021/acsnano.4c18320

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