张德庆,刘婷婷,张慧斌,程俊业,曹茂盛.Co3O4/Biomass-rGO异质结构纳米片的微波吸收性能[J].表面技术,2020,49(2):56-60.
ZHANG De-qing,LIU Ting-ting,ZHANG Hui-bin,CHENG Jun-ye,CAO Mao-sheng.Microwave Absorption Properties of Co3O4/Biomass-rGO Heterostructure Nanosheets[J].Surface Technology,2020,49(2):56-60
Co3O4/Biomass-rGO异质结构纳米片的微波吸收性能
Microwave Absorption Properties of Co3O4/Biomass-rGO Heterostructure Nanosheets
投稿时间:2019-08-16  修订日期:2020-02-20
DOI:10.16490/j.cnki.issn.1001-3660.2020.02.006
中文关键词:  Co3O4纳米粒子  生物质-rGO  异质结构  宽频带  微波吸收
英文关键词:Co3O4 nanoparticles  biomass-rGO  heterostructure  broadband  microwave absorption
基金项目:国家自然科学基金(51272110, 51772160);齐齐哈尔大学研究生创新基金(YJSCX2018-037X)
作者单位
张德庆 1.齐齐哈尔大学,黑龙江 齐齐哈尔 161006 
刘婷婷 1.齐齐哈尔大学,黑龙江 齐齐哈尔 161006 
张慧斌 1.齐齐哈尔大学,黑龙江 齐齐哈尔 161006 
程俊业 2.深圳大学,广东 深圳 518060 
曹茂盛 3.北京理工大学,北京 100081 
AuthorInstitution
ZHANG De-qing 1.Qiqihar University, Qiqihar 161006, China 
LIU Ting-ting 1.Qiqihar University, Qiqihar 161006, China 
ZHANG Hui-bin 1.Qiqihar University, Qiqihar 161006, China 
CHENG Jun-ye 2.Shenzhen University, Shenzhen 518060, China 
CAO Mao-sheng 3.Beijing Institute of Technology, Beijing 100081, China 
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中文摘要:
      目的 调节Co3O4纳米粒子的电磁匹配,以实现最佳的电磁波吸收性能,同时实现对轻质、强吸收、宽频带、小厚度电磁波吸收材料的追求。方法 通过玉米秸秆制备生物质-rGO,采用水热法将生物质-rGO引入到Co3O4纳米粒子中制备具有异质结构的Co3O4/biomass-rGO纳米片。通过X射线衍射分析仪、透射电子显微镜、高分辨透射电子显微镜测试,分别对Co3O4/biomass-rGO异质结构纳米片的组成、形貌以及结构进行表征,同时通过矢量网络分析仪测试分析生物质-rGO的引入对Co3O4/biomass-rGO异质结构纳米片吸波性能的影响。结果 生物质-rGO的引入明显提高了Co3O4/biomass-rGO异质结构纳米片在2~18 GHz频率范围的电磁波吸收性能,不仅降低了有效吸收体厚度,同时还拓展了有效吸收频带宽度。在厚度为1.5 mm、频率为15.8 GHz时,达到–36.1 dB的最大反射损耗值。有效吸收频带宽度为15 GHz,在S、C、X、Ku波段均存在有效吸收,实现了在1.0~5.5 mm宽厚度范围内的全部有效吸收。结论 通过引入生物质-rGO可以有效改善Co3O4的电磁匹配和介电损耗。
英文摘要:
      The paper aims to adjust the electromagnetic matching of Co3O4 nanoparticles to achieve the best electromagnetic wave absorption performance, and obtain electromagnetic wave absorbing materials of lightweight, strong absorption, broadband and small thickness. The biomass-rGO was prepared from corn stover, and then the biomass-rGO was introduced into the Co3O4 nanoparticles by the hydrothermal method to prepare a Co3O4/biomass-rGO nanosheet of heterostructure. The composition, morphology and structure of Co3O4/biomass-rGO heterostructure nanosheets were characterized by X-ray diffraction analyzer, transmission electron microscopy and high resolution transmission electron microscopy. At the same time, the influence of introducing biomass-rGO on the absorbing properties of Co3O4/biomass-rGO heterostructure nanosheets was analyzed by a vector network analyzer. The introduction of biomass-rGO significantly improved the electromagnetic wave absorption performance of Co3O4/biomass-rGO heterostructure nanosheets in the frequency range of 2~18 GHz, which not only reduced the effective absorber thickness, but also expanded the effective absorption frequency bandwidth. A maximum reflection loss value of –36.1 dB was achieved at a thickness of 1.5 mm and a frequency of 15.8 GHz. The effective absorption frequency bandwidth was 15 GHz, and there was effective absorption in the S, C, X, and Ku bands, and all effective absorption in a wide thickness range of 1.0 to 5.5 mm was achieved. It turns out that the introduction of biomass-rGO can effectively improve the electromagnetic matching and dielectric loss of Co3O4.
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