铁掺杂氧化锌复合材料的制备及吸波性能研究
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- 英文论文题名：Preparation of Fe-doped ZnO composites and microwave absorption properties
- 论文作者：疏瑞文 ; 杨莹莹 ; 唐夏宇
- 英文论文作者：Ruiwen Shu ; Yingying Yang ; Xiayu Tang ; School of Chemical Engineering ; Anhui University of Science and Technology
- 年：2016
- 作者机构：安徽理工大学化学工程学院;
- 论文关键词：氧化锌 ; 掺杂 ; 吸波性能
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第四十二分会：能源纳米材料物理化学
- 语种：中文
- 分类号：TB333
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第四十二分会 ; 能源纳米材料物理化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：225k
- 原文格式：D
- 会议级别：全国
摘要
本工作采用化学共沉淀法制备Fe掺杂ZnO复合粉末。通过X射线衍射(XRD)仪、X射线光电子能谱(XPS)仪、扫描电子显微镜(SEM)、振动样品磁强计(VSM)和矢量网络分析仪(VNA)对复合材料的结构、形貌、磁性能、电磁参数和吸波性能进行表征。结果表明:Fe离子成功进入ZnO晶格,且以+3价存在;复合粉末呈现典型的铁磁性;吸波层匹配厚度为2 mm,掺杂Fe的摩尔百分数为10 mol.%时,Fe掺杂ZnO/石蜡复合材料在2-18 GHz频率范围内最小反射损耗为-33.7 dB,反射损耗低于-10 dB的吸收带宽为5.0 GHz。通过调节掺杂Fe的摩尔分数或吸波层厚度可以获得具有优异吸波性能的材料,因此Fe掺杂ZnO是一种潜在的微波吸收材料。
In this work, Fe-doped ZnO powders have been prepared by a chemical co-precipitation method. The morphology, structure, magnetic properties, electromagnetic parameters and microwave absorbing properties were characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM), X-ray photoelectron spectroscopy(XPS), vibrating sample magnetometer(VSM) and vector network analyzer(VNA). The results showed that the Fe ions had been successfully incorporated into ZnO crystal and had a valence of 3+. Fe-doped ZnO powders exhibited typical ferromagnetic behavior. The minimum reflection loss reached-33.7 dB and the absorption bandwidth of reflection loss lower than-10 dB was 5.0 GHz with a thickness of only 2.0 mm for 10 mol.% Fe-doped ZnO/paraffin wax composite. Significantly, the excellent microwave absorption properties of the as-prepared composites could be achieved by adjusting the doped Fe concentration or matching layer thicknesses. Therefore, the Fe-doped ZnO composites could be used as potential microwave absorption materials.
In this work, Fe-doped ZnO powders have been prepared by a chemical co-precipitation method. The morphology, structure, magnetic properties, electromagnetic parameters and microwave absorbing properties were characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM), X-ray photoelectron spectroscopy(XPS), vibrating sample magnetometer(VSM) and vector network analyzer(VNA). The results showed that the Fe ions had been successfully incorporated into ZnO crystal and had a valence of 3+. Fe-doped ZnO powders exhibited typical ferromagnetic behavior. The minimum reflection loss reached-33.7 dB and the absorption bandwidth of reflection loss lower than-10 dB was 5.0 GHz with a thickness of only 2.0 mm for 10 mol.% Fe-doped ZnO/paraffin wax composite. Significantly, the excellent microwave absorption properties of the as-prepared composites could be achieved by adjusting the doped Fe concentration or matching layer thicknesses. Therefore, the Fe-doped ZnO composites could be used as potential microwave absorption materials.
引文
[1]Wu,F.;Xia,Y.;Wang,Y.;Wang,M.J.Mater.Chem.A 2014,2:20307.
[2]Lu,M.;Cao,W.;Shi,H.;Fang,X;Yang,J.;Hou,Z.;Jin,H.;Wang,W.;Yuan,J.;Cao,M.J.Mater.Chem.A2014,2:10540.
[3]Su,X.;Jia,Y.;Liu,X.;Wang,J.;Xu,J.;He,X.;Fu,C.;Liu,S.Ceram.Int.2014,40:5307.
[4]Duan,Y.;Liu,Z.;Jing,H.;Zhang,Y.;Li,S.J.Mater.Chem.2012,22:18291.
[2]Lu,M.;Cao,W.;Shi,H.;Fang,X;Yang,J.;Hou,Z.;Jin,H.;Wang,W.;Yuan,J.;Cao,M.J.Mater.Chem.A2014,2:10540.
[3]Su,X.;Jia,Y.;Liu,X.;Wang,J.;Xu,J.;He,X.;Fu,C.;Liu,S.Ceram.Int.2014,40:5307.
[4]Duan,Y.;Liu,Z.;Jing,H.;Zhang,Y.;Li,S.J.Mater.Chem.2012,22:18291.