磁性催化剂材料——CoMgAl水滑石的合成及表征  

Synthesis and characterization of catalyst with magnetism of CoMgAl hydrotalcite

作　　者：孙炜岩[1] 仲崇娜 刘天孚 李占双[2] 

机构地区：[1]内蒙古工业大学化工学院,内蒙古呼和浩特010051 [2]哈尔滨工程大学材料科学与化学工程学院,黑龙江哈尔滨150001

出　　处：《化学工程师》2009年第9期7-8,22,共3页Chemical Engineer

基　　金：黑龙江省科技攻关资助项目(G202A423);哈尔滨市科学研究基金资助(2008RFQXG028)

摘　　要：将磁性基质与钴镁铝类水滑石组装制备磁性钴镁铝水滑石。研究了磁性基质含量、焙烧温度对水滑石磁学性能及结构的影响。并借助XRD,VSM等手段对其进行了表征。实验结果表明:磁性基质的引入赋予了钴镁铝水滑石以超顺磁性,XRD图谱显示磁性基质含量在一定范围内不会破坏水滑石的层状结构。In this paper, magnetic Co-Mg-Al hydrotalcite was synthesized with magnetic substrates and CoMg-Al hydrotalcite-like compounds.The influences of the amount of magnetic substrate, calcination temperatures on the structure were studied.The obtained samples were characterized in detail by XRD and VSM techniques.Results indicated that the introduction of magnetic substrates endowed Co-Mg-Al hydrotalcite with magnetism and saturation magnetization intensity of magnetic Co-Mg-Al hydrotalcite decreased with increasing calcined temperature.XRD patterns showed the characteristic diffraction peaks of magnetic hydrotalcite-like which revealed that the typical layered structure are still presented.

关 键 词：磁性 类水滑石 比表面积 

分 类 号：TQ423.93[化学工程]