一种新型宽带强吸收性能的FeCO/RGO微波吸收纳米复合材料。
A New Broadband and Strong Absorption Performance FeCO/RGO Microwave Absorption Nanocomposites.
作者信息
Huang Wei, Wei Shicheng, Wang Yujiang, Wang Bo, Liang Yi, Huang Yuwei, Xu Binshi
机构信息
National Key Laboratory for Remanufacturing, Academy of Army Armored Forces, Beijing 100072, China.
出版信息
Materials (Basel). 2019 Jul 9;12(13):2206. doi: 10.3390/ma12132206.
A novel composite of FeCO nanoparticles, which are wrapped with reduced graphene oxide (RGO), is fabricated using a facile one-spot solvothermal method. The composite consists of a substrate of RGO and FeCO nanoparticles that are embedded in the RGO layers. The experimental results for the FeCO/RGO composite reveal a minimum refection loss (-44.5 dB) at 11.9 GHz when the thickness reaches 2.4 mm. The effective bandwidth is 7.9 GHz between 10.1 and 18 GHz when the refection loss was below -10 dB. Compared to GO and RGO, this type of composite shows better microwave absorption thanks to improved impedance matching. Overall, this thin and lightweight FeCO/RGO composite is a promising candidate for absorbers that require both strong and broad absorption.
采用简便的一步溶剂热法制备了一种新型的由还原氧化石墨烯（RGO）包裹的FeCO纳米颗粒复合材料。该复合材料由RGO基底和嵌入RGO层中的FeCO纳米颗粒组成。FeCO/RGO复合材料的实验结果表明，当厚度达到2.4 mm时，在11.9 GHz处反射损耗最小（-44.5 dB）。当反射损耗低于-10 dB时，有效带宽在10.1至18 GHz之间为7.9 GHz。与氧化石墨烯（GO）和RGO相比，由于阻抗匹配得到改善，这种复合材料表现出更好的微波吸收性能。总体而言，这种薄且轻的FeCO/RGO复合材料是兼具强吸收和宽吸收特性的吸收体的有前途的候选材料。
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