MOFs衍生NPC/CoFe_(2)O_(4)二元复合材料的制备及其电磁波吸收性能的研究  

Preparation of MOFs-derived NPC/CoFe_(2)O_(4) and its electromagnetic wave absorption property

作　　者：江陈烨 罗驹华[2] 陈晓雯 孙彩红 Jiang Chenye;Luo Juhua;Chen Xiaowen;Sun Caihong(School of Materials Science and Engineering,Changzhou University,Changzhou 213100;School of Materials Science and Engineering,Yancheng Institute of Technology,Yancheng 224051;School of Materials Science and Engineering,Jiangsu University,Zhenjiang 212013)

机构地区：[1]常州大学材料科学与工程学院,常州213100 [2]盐城工学院材料科学与工程学院,盐城224051 [3]江苏大学材料学院,镇江212013

出　　处：《化工新型材料》2022年第5期80-86,共7页New Chemical Materials

基　　金：江苏省研究生科研实践创新项目(rant No.SJCX18-0886)。

摘　　要：采用两步法制备出氮掺杂多孔碳材料(NPC),通过水热法原位合成NPC/CoFe_(2)O_(4)复合材料。采用XRD、FT-IR、XPS和SEM等方法对样品结构及形貌进行表征,并采用VNA测试材料的电磁参数,计算出在2G~18GHz范围内样品对电磁波的吸收效果。结果表明,当CoFe_(2)O_(4)的添加量为15%时,样品具有最佳的吸波性能。当频率为10.24GHz时,最低反射损耗达到-19.09dB,此时样品的厚度为3.5mm,有效吸波带宽为4GHz。Nitrogen-doped porous carbon materials were firstly prepared by a two-step method,and then the nitrogen-doped porous carbon/cobalt ferrite composites were synthesized by the hydrothermal method.XRD,FT-IR,XPS,SEM were used to characterize the structure and morphology of the samples.The microwave electromagnetic parameters of the composites were measured by VNA and the frequency range from 2 GHz to 18 GHz,the absorbing properties were calculated by electromagnetic parameters.The results showed that when the cobalt ferrite content was 15%,the sample had the best absorption performance.The minimum reflection loss reached-19.09 dB at the frequency of 10.24 GHz with a matching thickness of 3.5 mm,and the effective absorbing bandwidth was 4 GHz.

关 键 词：金属有机框架结构 氮掺杂多孔碳 铁氧体 电磁性能 

分 类 号：TQ426.4[化学工程]