水热还原法制备纳米Ni粉及吸波性能  

Preparation of Nano Nickel Powders by Hydrothermal Reduction and Its Wave Absorption Performance

作　　者：黄亚军 朱岩岩 靖辉隆 张娜 管家虎 Huang Yajun;Zhu Yanyan;Jing Huilong;Zhang Na;Guan Jiahu(School of Chemistry and Chemical Engineering,Suzhou University,Suzhou 234000,China)

机构地区：[1]宿州学院化学化工学院

出　　处：《山东化工》2020年第3期15-16,19,共3页Shandong Chemical Industry

基　　金：安徽省级大学生创新训练项目(201810379047)

摘　　要：以NiCl2·6H2O、NaOH为原料,N2H4·2HCl为还原剂,PVP为表面活性剂,通过水热还原法制得纳米镍粉。探究不同温度、还原剂浓度对制得的纳米Ni粉的影响。采用XRD、SEM和矢量网络分析仪对样品的物相组成,微观形貌和微波吸收性能进行表征。结果显示:水热还原法制备Ni粉都是纯相面心立方结构,球形颗粒。在涂层厚度为1.8 mm时,在12.2 GHz处,最强反射损耗值为-36.7 dB。UsingNiCl2·6H2O,NaOH as raw materials,N2H4·2HCl as reducing agent and PVP as surfactant,black nanometer nickel powders were prepared by hydrothermal reduction.To explore the influence of reaction temperature and reducing agent concentration on the preparation of nanometer Ni powder.The phase composition,microstructure and microwave absorption performance of the samples were detected by XRD,SEM and vector network analyzer respectively.The results show that the nickel powder prepared by hydrothermal reduction method were all spherical particles pure phase with centered cubic structure.When the coating thickness is 1.8mm,at 12.2 GHz,the maximum reflection loss reaches-36.7 dB.

关 键 词：纳米镍粉 水热还原 吸波性能 

分 类 号：TQ138.1[化学工程—无机化工] TB383[一般工业技术—材料科学与工程]