Co-Ni Electromagnetic Coupling in Hollow Mo2C/NC Sphere for Enhancing Electromagnetic Wave Absorbing Performance†
Xiufang Yang
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China
Search for more papers by this authorWenming Gao
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China
Search for more papers by this authorJiamin Chen
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China
Search for more papers by this authorXing Lu
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China
Search for more papers by this authorDong Yang
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China
Search for more papers by this authorYifan Kang
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China
Search for more papers by this authorQi Liu
Northwest Institute of Mechanical and Electrical Engineering, Xianyang, Shaanxi, 712099 China
Search for more papers by this authorCorresponding Author
Yuchang Qing
State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072 China
E-mail: [email protected]; [email protected]Search for more papers by this authorCorresponding Author
Wenhuan Huang
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China
E-mail: [email protected]; [email protected]Search for more papers by this authorXiufang Yang
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China
Search for more papers by this authorWenming Gao
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China
Search for more papers by this authorJiamin Chen
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China
Search for more papers by this authorXing Lu
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China
Search for more papers by this authorDong Yang
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China
Search for more papers by this authorYifan Kang
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China
Search for more papers by this authorQi Liu
Northwest Institute of Mechanical and Electrical Engineering, Xianyang, Shaanxi, 712099 China
Search for more papers by this authorCorresponding Author
Yuchang Qing
State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072 China
E-mail: [email protected]; [email protected]Search for more papers by this authorCorresponding Author
Wenhuan Huang
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China
E-mail: [email protected]; [email protected]Search for more papers by this author†Dedicated to the Special Issue of Emerging Investigators in 2022.
Comprehensive Summary
For enhancing the electromagnetic wave (EW) attenuation and adsorption, rational constructing and homogeneously distributing bimetallic electromagnetic coupling units in hollow structure is an effective way, but hard to achieve. Herein, a CoNi-doped hybrid zeolite imidazole framework was synthesized as precursor, which was further converted into a hollow CoNi-bimetallic doped molybdenum carbide sphere (H-CoNi@MoC/NC) through a two-step etching and calcination strategy. At the loading amount of 15 wt%, a strong absorption of minimum reflection loss (RLmin) of –60.05 dB at 7.2 GHz with the thickness of 3.1 mm and a wide effective adsorption bandwidth (EAB) of 3.52 GHz at the thickness of 2.5 mm were achieved, which was far beyond the reported MoC-based metallic hybrids. The crucial synergistic Co-Ni electromagnetic coupling effect in the composite was characterized, not only enhancing the dipolar/interfacial polarization, but also promoting the impedance matching, displaying the optimized EW absorbing performance.
Supporting Information
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Appendix S1 Supporting Information |
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