摘要
采用共沉淀法,将稀土金属Nd^(3+)取代的镍铁氧体与纳米石墨微片(NanoG)进行复合,制备NiFe_2O_4-NanoG和NiNd_(0.06)Fe_(1.94)O_4-NanoG复合材料,分别以NiFe_2O_4、NiNd_(0.06)Fe_(1.94)O_4、NiFe_2O_4-NanoG和聚吡咯(PPy)-NiNd_(0.06)Fe_(1.94)O_4-NanoG为模板,采用原位聚合法,制备PPy-Ni Fe_2O_4、PPy-NiNd_(0.06)Fe_(1.94)O_4、PPy-NiFe_2O_4-NanoG和PPy-NiNd_(0.06)Fe_(1.94)O_4-NanoG复合材料,采用红外光谱、X射线衍射、扫描电子显微镜等技术手段表征其结构,并测试其耐热性、电、磁及微波吸收性能。结果表明,PPy-NiFe_2O_4、PPy-NiNd_(0.06)Fe_(1.94)O_4、PPy-NiFe_2O_4-NanoG、PPy-Ni Nd_(0.06)Fe_(1.94_O_4-NanoG在频率为11.92、11.92、9.29、9.33 GHz处的最小反射损耗分别为-13.50、-15.19、-20.03、-21.95 d B,PPy在频率为10.2 GHz处的最小反射损耗为-12.09 d B。
NiFe2 O4-graphite nanosheet （NanoG） and NiNd0.06 Fe1,94O4-NanoG composite materials were prepared by using the coprccipitation reaction of Nd3＋ substituted nickel ferrite with NanoG. The PPy-NiFe2 04, PPy-NiNd0.06 Fe1.94 04, PPy-NiFe2O4-NanoG, and PPy-NiNdo.06 Fe1.94 O4 -NanoG composite materials were synthesized taking NiFe204, NiNd0.06 Fe1.94O4, NiFe2O4-NanoG, and NiNd0.06 Fe1.94O4-NanoG as templets, and by using the in-situ polymerization process. The structure of the obtained samples was characterized by technical means of IR, XRD, and SEM. The properties such as thermal resistence, electrical, magnetic, and microwave absorbing were measured. The results show that the minimum loss values of PPy-NiFe2O4, PPy-NiNd0 .06 Fe1. 94O4, PPy-NiFe2O4-NanoG, and PPy-NiNd0. 06 Fe1. 94 O4-NanoG composite materials are -13.50, -15.19, -20.03, -21：95 dB at frequencies of 11.92, 11.92, 9.29, 9.33 GHz, while the minimum loss value of PPy is -12.09 dB at frequency of 10.2 GHz.
作者
杨永清
YANG Yongqing(College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021 , China)
出处
《济南大学学报（自然科学版）》
北大核心
2017年第4期364-370,共7页
Journal of University of Jinan(Science and Technology)
基金
宁夏自然科学基金项目(NZ14018)
关键词
镍铁氧体
原位聚合
纳米石墨微片
微波吸收性能
nickel ferrite
in-situ polymerization
graphite nanosheet
microwave absorbing property
