物理化学学报2026，Vol.42Issue(11)：96-110,15.DOI:10.1016/j.actphy.2026.100345
MoS2调控TiO2/C形成介电损耗主导的绣球花结构用于电磁波吸收
MoS2-modulated TiO2/C hydrangea structures for electromagnetic wave absorption via dielectric loss dominances
摘要
Abstract
For non-magnetic metal-organic framework(MOF)derivatives,the core challenge in current research is how to overcome impedance mismatch and enhance microwave absorption performance through precise control of the material's micro-morphology and dielectric properties without introducing magnetic components.The incorporation of MoS2,a two-dimensional material with semiconductor properties and a layered structure,can significantly enhance the absorptive performance of such materials.In this work,a novel Ti-MOF derivative absorber material(TiO2/C@MoS2)with hydrangea-like morphology is proposed by in situ growing MoS2 with varying loadings on Ti-MOFs to overcome the aforementioned challenges.Specifically,the TiO2/C@MoS2 composite material TM72 achieves a minimum reflection loss(RLmin)of-62.1 dB at a thickness of 2.05 mm,a maximum effective absorption bandwidth(EABmax)of 5.88 GHz(corresponding to a thickness of 2.18 mm),and a radar cross-section(RCS)reduction of 16.6 dB m2.For TM71,the RLmin is-52.82 dB at a matching thickness of 2.47 mm,with an EABmax of 6.93 GHz corresponding to a matching thickness of 2.28 mm,and it also achieves a radar cross-section(RCS)reduction of 17.95 dB m2.This enables TiO2/C@MoS2 to fulfill the critical demands of electromagnetic wave absorbing materials(EMWAMs):"strong,broad,thin,and lightweight".Furthermore,RCS simulations validate the actual applicability of this composite material.Consequently,this effort provides an innovative strategy for constructing next-generation EMWAMs featuring ultrathin structures,outstanding absorption performance,and broadband absorption capabilities.关键词
核壳结构/电磁波吸收/阻抗匹配/二硫化钼(MoS2)/MOFs衍生物Key words
Core-shell structure/Electromagnetic wave absorption/Impedance matching/Molybdenum disulfide(MoS2)/MOFs derivatives分类
化学化工引用本文复制引用
胡玉鹏,董赛佳,周腾,马东威,张道海,夏华森,司元靖,宋安敏,徐国敏..MoS2调控TiO2/C形成介电损耗主导的绣球花结构用于电磁波吸收[J].物理化学学报,2026,42(11):96-110,15.基金项目
本研究由国家自然科学基金项目(52163001) （52163001）
贵州省科技计划项目(黔科合平台人才-GCC[2022]010-2) （黔科合平台人才-GCC[2022]010-2）
中央引导地方科技发展专项资金(黔科合中引地[2024]042、黔科合中引地[2025]013、黔科合人才XKBF[2025]005) （黔科合中引地[2024]042、黔科合中引地[2025]013、黔科合人才XKBF[2025]005）
贵州民族大学博士启动基金项目(GZMUZK[2024]QD77) （GZMUZK[2024]QD77）
贵州省科学家工作站(黔科合平台KXJZ[2024]022) （黔科合平台KXJZ[2024]022）
贵州省教育厅"百校千企科技攻关揭榜挂帅"(黔教技[2025]007号) （黔教技[2025]007号）
大学生创新创业训练计划项目(202510672646)共同资助. （202510672646）
