文章摘要
黄勇,徐光亮,代竟雄,范俊龙.软模板水热法制备空心ZnFe2O4及吸波性能[J].精细化工,2020,37(6):0
软模板水热法制备空心ZnFe2O4及吸波性能
Soft Template Hydrothermal Preparation and Absorbing Property of Hollow ZnFe2O4
投稿时间:2019-12-09  修订日期:2020-02-17
DOI:
中文关键词: 空心ZnFe2O4  软模板  电磁参数  吸波性能  功能材料
英文关键词: hollow ZnFe2O4  soft template  electromagnetic parameter  absorbing properties  function materials
基金项目:四川省科技计划项目(2017TD0020); 西南科技大学重点科研项目(17zx910201);西南科技大学龙山学术人才科研支持计划(18LZX437,18LZXT09)
作者单位E-mail
黄勇 西南科技大学 645614817@qq.com 
徐光亮 西南科技大学 xuguangliang@swust.edu.cn 
代竟雄 西南科技大学  
范俊龙 西南科技大学  
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中文摘要:
      以六水合氯化铁和氯化锌为原料,聚乙二醇4000为表面活性剂,采用软模板水热法一步合成了具有空心结构的ZnFe2O4纳米颗粒。采用XRD、XPS、FE-SEM和TEM对样品的物相和形貌进行了表征,通过振动样品磁强计(VSM)和矢量网络分析仪测试了样品的静磁性能和电磁参数,并模拟计算了样品的反射损耗,考察了其吸波性能。结果表明:所制备的ZnFe2O4粒径约为100 nm,分散均匀,具有明显的空心结构。吸波性能优异。当样品的匹配厚度为2.7 mm时,在12.41GHz处获得最小的反射损耗(-42.18dB);而当匹配厚度为3.0mm时,样品的有效吸收带宽(反射损耗≤-10dB,即吸收率为90%)最宽,为2.60GHz(10.60~13.20GHz)。
英文摘要:
      Using ferric chloride hexahydrateand zinc chloride as raw materials,and utilizing the self-assembly of polyethylene glycol 4000 as a surfactant, ZnFe2O4 nanoparticles with a hollow structure were synthesized in one step by a soft template hydrothermal method. The phase and morphology of the samples were characterized by XRD, XPS, FE-SEM and TEM, and the magnetic properties of the samples were investi-gated by vibrating sample magnetometer (VSM). A vector network analyzer was used to test the electro-magnetic parameters of the sample, and the reflection loss of the samples was calculated by simulation to study the absorbing performance of the sample. The results show that the as-prepared hollow ZnFe2O4 has a particle size of about 100 nm, is uniformly dispersed, and has a clear hollow structure. The absorbing properties are excellent, when the matched thickness of the sample is 2.7 mm, the minimum reflection loss(RL) at 12.41 GHz is up to -42.18dB; And when the matched thickness is 3.0 mm, the effective ab-sorption bandwidth( RL≤-10 dB,90% absorption rate) is 2.60 GHz (10.60GHz~13.20GHz).
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