新型炭材料（中英文）2023，Vol.38Issue(6)：1035-1049,15.DOI:10.1016/S1872-5805(23)60780-2
用于高效微波吸收的3D多孔异质界面型NiCo2(CO3)3/RGO气凝胶
3D porous NiCo2(CO3)3/reduced graphene oxide aerogel with hetero-geneous interfaces for high-efficiency microwave absorption
摘要
Abstract
Advanced electromagnetic absorbing materials(EAMs)with strong absorption and a wide effective absorption band-width(EAB),using innovative microstructural design and suitable multicomponents remain a persistent challenge.Here,we report the production of a material by the hydrothermal reduction of a mixture of graphene oxide(GO),Ni(NO3)2·6H2O,and Co(NO3)2·6H2O,resulting in reduced GO(RGO)with a self-assembled 3D mesh structure filled with NiCo2(CO3)3.The unique mi-crostructure of this assembly not only solves the problem of NiCo2(CO3)3 particles agglomerating but also changes the electromagnet-ic parameters,thereby improving the impedance matching and attenuation ability.High electromagnetic wave absorption(EMA)was achieved by combining the 3D interconnected mesh structure and the various interfaces between NiCo2(CO3)3 and RGO.The minim-al reflection loss(RLmin)was-58.5 dB at 2.3 mm,and the EAB was 6.5 GHz.The excellent EMA performance of the aerogel can be attributed to the multiple reflection,scattering,and relaxation process of the porous 3D structure as well as the strong polarization of the interfacial matrix.n of the interfacial matrix.关键词
NiCo2(CO3)3/RGO气凝胶/结构设计/界面极化/微波吸收Key words
NiCo2(CO3)3/RGO aerogel/Structural design/Interface polarization/Microwave absorption分类
通用工业技术引用本文复制引用
武丹丹,张含笑,王政炎,张妍兰,王永祯..用于高效微波吸收的3D多孔异质界面型NiCo2(CO3)3/RGO气凝胶[J].新型炭材料（中英文）,2023,38(6):1035-1049,15.基金项目
This work was supported by the Central Govern-ment Guides Local Science and Technology Develop-ment Special Fund Projects(YDZJSX2022B003) （YDZJSX2022B003）
Shanxi Province Science and Technology Major Projects(202101120401008) （202101120401008）
Key Research and De-velopment Project of Shanxi Province(202102030201006) （202102030201006）
Natural Science Foundation of Shanxi Province(202203021212205) （202203021212205）
Scientific and Technological Innovation Programs of Higher Educa-tion Institutions in Shanxi(2022L074). 中央引导地方科技发展资金项目(YDZJSX2022B003) （2022L074）
山西省科技重大专项计划项目(202101120401008) （202101120401008）
山西省重点研发计划项目(202102030201006) （202102030201006）
山西省自然科学基金项目(202203021212205) （202203021212205）
山西省高等学校科技创新项目(2022L074). （2022L074）
