辽宁石油化工大学学报2026，Vol.46Issue(2)：40-48,9.DOI:10.12422/j.issn.1672-6952.2026.02.005
椰子壳衍生碳基磁性金属镍掺杂复合吸波材料的简易合成与性能调控
Simple Synthesis and Performance Control of Carbon-Based Magnetic Nickel Doped Composite Absorbing Materials Derived from Coconut Shell
摘要
Abstract
Electromagnetic wave absorbing materials can dissipate energy by converting electromagnetic energy into thermal energy.Therefore,they are widely used in communication and military fields.Due to the environmental pollution and high costs associated with chemically synthetic composite materials,biomass-derived carbon materials have emerged as a prominent research focus.Given the intrinsic adsorption capacity of carbon,coconut shell biomass was selected as a precursor.A carbon/nickel composite absorbing material,designated as CE/Ni-x(where x denotes the immersion time in hours),was successfully synthesized via an in-situ growth and high-temperature reduction method with varying mass fractions of nickel oxide.The composite absorbing material was characterized and tested using an X-ray diffractometer,scanning electron microscope,and vector network analyzer.The results show that CE/Ni-7 exhibits absorption characteristics in both high-and low-frequency bands,with a minimum reflection loss(RLmin)value of-30.05 dB.Furthermore,by adjusting the immersion time,effective absorption can be achieved in the 2.7-18.0 GHz frequency band(reflection loss lower than-10 dB).This research demonstrates a viable route for the low-cost,controllable synthesis of dual-band(low frequency/high frequency)electromagnetic wave absorbing materials.关键词
生物质吸波材料/镍/带宽调控/阻抗匹配调控Key words
Biomass-derived absorbing material/Nickel/Bandwidth control/Impedance matching regulation分类
通用工业技术引用本文复制引用
陈家鹏,田春华,全军,成思敏,江瑞涛,陈诗林..椰子壳衍生碳基磁性金属镍掺杂复合吸波材料的简易合成与性能调控[J].辽宁石油化工大学学报,2026,46(2):40-48,9.基金项目
广东省基础与应用基础研究基金项目(2023A1515011796,2024A1515011908) （2023A1515011796,2024A1515011908）
岭南师范学院高层次人才项目(ZL2021020) （ZL2021020）
岭南师范学院特色创新项目(TL2414). （TL2414）
