Edited by Hongjing Wu Northwestern Polytechnical University, China Jun Luo Institute of Microelectronics, Chinese Academy of Sciences (IMECAS), China Meiyin Yang Institute of Microelectronics, Chinese Academy of Sciences (IMECAS), China Series Editors Arthur Willoughby University of Southampton, Southampton, UKPeter Capper formerly of Leonardo M. W. Ltd, Southampton, UKSafa Kasap University of Saskatchewan, Saskatoon, Canada

• List of Contributors xiOverview of the Work xiiiAcknowledgments xv1 Metal-Organic Framework-Based Electromagnetic Wave Absorption Materials 1Zijing Li1.1 Brief Introduction to Metal-Organic Frameworks 11.2 Preparation Method of MOF Materials 21.3 MOF-Derived EMW Absorption Materials 111.4 Summarize and Prospect 222 2D MXenes for Electromagnetic Wave Absorption 31Weibin Deng2.1 Introduction to MXenes 322.2 Preparation Method of MXenes 322.3 The Properties of MXenes 372.4 Electromagnetic Wave Absorption Performance of Pure MXenes 392.5 Classification of MXenes in EMW Absorbing Materials 442.6 The Application Prospects of MXenes in EMW-Absorbing Materials 583 High-Entropy Electromagnetic Wave Absorption Materials 67Shengchong Hui3.1 The Concept and Features of High-Entropy Materials 673.2 The Synthesis Approach and Advanced Characterization of HEM 713.3 High-Entropy Electromagnetic Wave Absorption Materials 773.4 The Challenge and Prospects of HEM 854 Novel Microscopic Electromagnetic Loss Mechanisms 91Hongsheng Liang4.1 Novel Dielectric Loss Mechanisms 914.2 Novel Microscopic Magnetic Loss Mechanisms 1034.3 Conclusion and Outlook 1125 Bridging Mechanisms Between Micro and Macro 117Geng Chen, Tao Zhang, and Yuntong Wang5.1 Introduction to Micro Factors 1185.2 Regulation of Microscopic Attributes 1305.3 The Current State and Future Potential of Bridge Mechanism Between Micro and Macro Levels 1376 New Dielectric Physical Models for Electromagnetic Wave Absorption 145Hongsheng Liang6.1 Dielectric Microphysical Model 1456.2 Physical Models Related to Structural Design 1566.3 Intelligent Off/On Switchable Model 1626.4 Conclusion and Outlook 1657 Integrated Foam-Type Electromagnetic Wave Absorption Materials 169Qing Chang7.1 Carbon-Based Foam for EMW Absorption 1697.2 Ferrite-Based Foam for EMW Absorption 1857.3 SiC-Based Foam for EMW Absorption 1887.4 Conductive Polymer Composites Foam for EMW Absorption 1918 Integral Gel Electromagnetic Wave Absorption Materials 199Jiaming Wen8.1 Dielectric Liquid Medium Gel Electromagnetic Wave Absorption Materials 2008.2 Dielectric Solid Medium Gel EMW Absorption Materials 2068.3 Prospect of Integral Gel EMW Absorption Materials 2159 Thin-Film Electromagnetic Wave Absorption Materials 221Bin Shi9.1 Introduction 2219.2 Film Electromagnetic Wave Absorption Materials 2219.3 The Conclusion and Prospect 238References 239Index 241

Edited by Hongjing Wu Northwestern Polytechnical University, China Jun Luo Institute of Microelectronics, Chinese Academy of Sciences (IMECAS), China Meiyin Yang Institute of Microelectronics, Chinese Academy of Sciences (IMECAS), China Series Editors Arthur Willoughby University of Southampton, Southampton, UKPeter Capper formerly of Leonardo M. W. Ltd, Southampton, UKSafa Kasap University of Saskatchewan, Saskatoon, Canada

• List of Contributors xiOverview of the Work xiiiAcknowledgments xv1 Metal-Organic Framework-Based Electromagnetic Wave Absorption Materials 1Zijing Li1.1 Brief Introduction to Metal-Organic Frameworks 11.2 Preparation Method of MOF Materials 21.3 MOF-Derived EMW Absorption Materials 111.4 Summarize and Prospect 222 2D MXenes for Electromagnetic Wave Absorption 31Weibin Deng2.1 Introduction to MXenes 322.2 Preparation Method of MXenes 322.3 The Properties of MXenes 372.4 Electromagnetic Wave Absorption Performance of Pure MXenes 392.5 Classification of MXenes in EMW Absorbing Materials 442.6 The Application Prospects of MXenes in EMW-Absorbing Materials 583 High-Entropy Electromagnetic Wave Absorption Materials 67Shengchong Hui3.1 The Concept and Features of High-Entropy Materials 673.2 The Synthesis Approach and Advanced Characterization of HEM 713.3 High-Entropy Electromagnetic Wave Absorption Materials 773.4 The Challenge and Prospects of HEM 854 Novel Microscopic Electromagnetic Loss Mechanisms 91Hongsheng Liang4.1 Novel Dielectric Loss Mechanisms 914.2 Novel Microscopic Magnetic Loss Mechanisms 1034.3 Conclusion and Outlook 1125 Bridging Mechanisms Between Micro and Macro 117Geng Chen, Tao Zhang, and Yuntong Wang5.1 Introduction to Micro Factors 1185.2 Regulation of Microscopic Attributes 1305.3 The Current State and Future Potential of Bridge Mechanism Between Micro and Macro Levels 1376 New Dielectric Physical Models for Electromagnetic Wave Absorption 145Hongsheng Liang6.1 Dielectric Microphysical Model 1456.2 Physical Models Related to Structural Design 1566.3 Intelligent Off/On Switchable Model 1626.4 Conclusion and Outlook 1657 Integrated Foam-Type Electromagnetic Wave Absorption Materials 169Qing Chang7.1 Carbon-Based Foam for EMW Absorption 1697.2 Ferrite-Based Foam for EMW Absorption 1857.3 SiC-Based Foam for EMW Absorption 1887.4 Conductive Polymer Composites Foam for EMW Absorption 1918 Integral Gel Electromagnetic Wave Absorption Materials 199Jiaming Wen8.1 Dielectric Liquid Medium Gel Electromagnetic Wave Absorption Materials 2008.2 Dielectric Solid Medium Gel EMW Absorption Materials 2068.3 Prospect of Integral Gel EMW Absorption Materials 2159 Thin-Film Electromagnetic Wave Absorption Materials 221Bin Shi9.1 Introduction 2219.2 Film Electromagnetic Wave Absorption Materials 2219.3 The Conclusion and Prospect 238References 239Index 241

Edited by Hongjing Wu Northwestern Polytechnical University, China Jun Luo Institute of Microelectronics, Chinese Academy of Sciences (IMECAS), China Meiyin Yang Institute of Microelectronics, Chinese Academy of Sciences (IMECAS), China Series Editors Arthur Willoughby University of Southampton, Southampton, UKPeter Capper formerly of Leonardo M. W. Ltd, Southampton, UKSafa Kasap University of Saskatchewan, Saskatoon, Canada

• List of Contributors xiOverview of the Work xiiiAcknowledgments xv1 Metal-Organic Framework-Based Electromagnetic Wave Absorption Materials 1Zijing Li1.1 Brief Introduction to Metal-Organic Frameworks 11.2 Preparation Method of MOF Materials 21.3 MOF-Derived EMW Absorption Materials 111.4 Summarize and Prospect 222 2D MXenes for Electromagnetic Wave Absorption 31Weibin Deng2.1 Introduction to MXenes 322.2 Preparation Method of MXenes 322.3 The Properties of MXenes 372.4 Electromagnetic Wave Absorption Performance of Pure MXenes 392.5 Classification of MXenes in EMW Absorbing Materials 442.6 The Application Prospects of MXenes in EMW-Absorbing Materials 583 High-Entropy Electromagnetic Wave Absorption Materials 67Shengchong Hui3.1 The Concept and Features of High-Entropy Materials 673.2 The Synthesis Approach and Advanced Characterization of HEM 713.3 High-Entropy Electromagnetic Wave Absorption Materials 773.4 The Challenge and Prospects of HEM 854 Novel Microscopic Electromagnetic Loss Mechanisms 91Hongsheng Liang4.1 Novel Dielectric Loss Mechanisms 914.2 Novel Microscopic Magnetic Loss Mechanisms 1034.3 Conclusion and Outlook 1125 Bridging Mechanisms Between Micro and Macro 117Geng Chen, Tao Zhang, and Yuntong Wang5.1 Introduction to Micro Factors 1185.2 Regulation of Microscopic Attributes 1305.3 The Current State and Future Potential of Bridge Mechanism Between Micro and Macro Levels 1376 New Dielectric Physical Models for Electromagnetic Wave Absorption 145Hongsheng Liang6.1 Dielectric Microphysical Model 1456.2 Physical Models Related to Structural Design 1566.3 Intelligent Off/On Switchable Model 1626.4 Conclusion and Outlook 1657 Integrated Foam-Type Electromagnetic Wave Absorption Materials 169Qing Chang7.1 Carbon-Based Foam for EMW Absorption 1697.2 Ferrite-Based Foam for EMW Absorption 1857.3 SiC-Based Foam for EMW Absorption 1887.4 Conductive Polymer Composites Foam for EMW Absorption 1918 Integral Gel Electromagnetic Wave Absorption Materials 199Jiaming Wen8.1 Dielectric Liquid Medium Gel Electromagnetic Wave Absorption Materials 2008.2 Dielectric Solid Medium Gel EMW Absorption Materials 2068.3 Prospect of Integral Gel EMW Absorption Materials 2159 Thin-Film Electromagnetic Wave Absorption Materials 221Bin Shi9.1 Introduction 2219.2 Film Electromagnetic Wave Absorption Materials 2219.3 The Conclusion and Prospect 238References 239Index 241