Dual strategy of A-site ion substitution and self-assembled MoS_(2) wrapping to boost permittivity for reinforced microwave absorption performance
作者机构：Institute of Physics&Optoelectronics TechnologyBaoji University of Arts and SciencesBaoji 721016China School of Materials Science and EngineeringHubei University of Automotive TechnologyShiyan 442002China Institute of Materials for Energy and EnvironmentState Key Laboratory of Bio-Fibers and Eco-TextilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China College of Chemistry and Chemical EngineeringQingdao UniversityQingdao 266071China
出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)
年 卷 期：2024年第180卷第13期
页 面：1-11页
核心收录：
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
基 金：National Natural Science Foundation of China(No.52301192) Natural Science Foundation of Shandong Province(No.ZR2019YQ24) Taishan Scholars and Young Experts Program of Shandong Province(No.tsqn202103057) Qingchuang Talents Induction Program of Shandong Higher Education Institution(Research and Innovation Team of Structural Functional Polymer Composites) Special Financial of Shandong Province(Structural Design of High-efficiency Electromag-netic Wave-absorbing Composite Materials and Construction of Shandong Provincial Talent Teams)
主 题：Perovskite oxides A-site ion substitution Multi-band Electromagnetic wave absorbing coating
摘 要：With the rapid development of electronic technology,how to effectively eliminate electromagnetic pollu-tion has become a serious *** oxides have shown great potential in the field of electro-magnetic wave absorption due to their unique structure and excellent physicochemical ***,by rationally manipulating the A-site ion substitution strategy,the theoretically directed doping of Sr ions into La ionic sites was utilized and the layered MoS_(2) was loaded by the hydrothermal process to modify its ***,the introduced polarization phenomenon improved the dielectric performance of the perovskite oxides,achieving a collaborative dielectric/magnetic loss ***,the prepared La0.7Sr0.3FeO3(LSFO)/MoS_(2) as coating filler in the epoxy resin coating system can obtain the minimum reflection loss of-67.09 dB at 1.9 mm and the maximum effective absorption bandwidth of 7.28 GHz at 2.3 *** importantly,it also exhibits excellent absorption performance for multi-band electromagnetic waves,covering a wide range of specified frequency *** provides inspiration for ex-ploring novel perovskite oxide-based electromagnetic wave absorbing coatings and broadens the choice of ideal candidate materials for designing highly efficient,multi-band absorbers to cope with sophisticated electromagnetic environments.
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