贺军哲,孙新,疏金成,杨轩,曹茂盛.纺锤状ZnO/还原氧化石墨烯异质结构及其微波吸收性能[J].表面技术,2020,49(2):88-94.
HE Jun-zhe,SUN Xin,SHU Jin-cheng,YANG Xuan,CAO Mao-sheng.Microwave Absorption Performance of Spindle-Shaped ZnO/Reduced Graphene Oxide Heterostructure[J].Surface Technology,2020,49(2):88-94
纺锤状ZnO/还原氧化石墨烯异质结构及其微波吸收性能
Microwave Absorption Performance of Spindle-Shaped ZnO/Reduced Graphene Oxide Heterostructure
投稿时间:2019-10-13  修订日期:2020-02-20
DOI:10.16490/j.cnki.issn.1001-3660.2020.02.011
中文关键词:  纺锤状ZnO棒  还原氧化石墨烯  异质结构  电磁特性  微波吸收
英文关键词:spindle-shaped ZnO rod  reduced graphene oxide  heterostructure  electromagnetic characteristics  microwave absorption performance
基金项目:国家自然科学基金(11774027,11574261,11604237,51132002,51072024,51372282)
作者单位
贺军哲 1.北京环境特性研究所,北京 100854 
孙新 1.北京环境特性研究所,北京 100854 
疏金成 2.北京理工大学,北京 100081 
杨轩 1.北京环境特性研究所,北京 100854 
曹茂盛 2.北京理工大学,北京 100081 
AuthorInstitution
HE Jun-zhe 1.Beijing Institute of Environmental Characteristics, Beijing 100854, China 
SUN Xin 1.Beijing Institute of Environmental Characteristics, Beijing 100854, China 
SHU Jin-cheng 2.Beijing Institute of Technology, Beijing 100081, China 
YANG Xuan 1.Beijing Institute of Environmental Characteristics, Beijing 100854, China 
CAO Mao-sheng 2.Beijing Institute of Technology, Beijing 100081, China 
摘要点击次数:
全文下载次数:
中文摘要:
      目的 调节石墨烯的电磁匹配,以实现最优的微波吸收性能。方法 通过改进的Hummers法制备氧化石墨烯GO,以六水合硝酸锌、双六甲撑三胺、氧化石墨烯为原料,采用水热法在140 ℃获得了具有异质结构的包裹r-GO的纺锤状ZnO棒(S-ZnO/r-GO)。通过X射线衍射分析仪(XRD)、扫描电子显微镜(SEM)以及透射电子显微镜(TEM)测试,分别对S-ZnO/r-GO的组成成分、形貌特征以及微观结构进行了表征,同时采用同轴法,通过矢量网络分析仪测试分析了不同填充浓度下S-ZnO/r-GO复合材料在2~18 GHz范围内的电磁特性,并通过计算得到了材料的微波反射率损耗。结果 尺寸均匀且相互交织的纺锤状ZnO棒被大量褶皱的还原氧化石墨烯所包覆,构建了一种相互连接的三维交织结构。纺锤状ZnO的引入以及三维结构的建立,明显改善了S-ZnO/r-GO异质结构在2~18 GHz频率范围内的电磁特性和微波响应。在厚度为2.0 mm,频率为14.8 GHz处,最大反射率损耗值达到-40 dB,有效吸收带宽几乎覆盖整个Ku波段。结论 纺锤状ZnO/r-GO复合材料表现出优异的微波吸收性能和较宽的有效吸收频段,具有一定的应用前景。
英文摘要:
      This work aims to adjust the electromagnetic matching of graphene to achieve the best microwave absorption performance. Graphene oxide was prepared by improved Hummers method. The spindle-shaped ZnO rods wrapped by reduced graphene oxide (S-ZnO/r-GO) with heterostructure were synthesized by the hydrothermal method at 140 ℃ with Zinc nitrate hexahydrate, bis-hexamethylene triamine and graphene oxide as raw materials. The composition, morphology and microstructure of S-ZnO/r-GO were characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM) and transmission electron microscopy (TEM). The electromagnetic properties of S-ZnO/r-GO composite with different mass ratios were tested by vector network analyzer in the frequency range of 2~18 GHz through coaxial method, and the microwave reflection loss of the composite was calculated. The interlaced spindle-shaped ZnO rods with uniform shapes were wrapped with plenty crumpled r-GO sheets, thus constructing an interconnected 3D structure. Both the introduction of spindle-shaped ZnO and the construction of 3D structure significantly improved the electromagnetic characteristics and microwave response of S-ZnO/r-GO heterostructure in the frequency range of 2~18 GHz. A maximum reflection loss value of -40 dB was achieved at a thickness of 2.0 mm and a frequency of 14.8 GHz. The effective absorption bandwidth almost covered the whole Ku band. The composites of S-ZnO/r-GO exhibit prominent microwave absorption performance and wide effective absorption bandwidth and have certain application prospects.
查看全文  查看/发表评论  下载PDF阅读器
关闭

关于我们 | 联系我们 | 投诉建议 | 隐私保护 | 用户协议

您是第19512981位访问者    渝ICP备15012534号-3

版权所有:《表面技术》编辑部 2014 surface-techj.com, All Rights Reserved

邮编:400039 电话:023-68792193传真:023-68792396 Email: bmjs@surface-techj.com

渝公网安备 50010702501715号