镍取代云母蒙脱石的结构表征  

Structural Charactertization of Nickel-Substituted Mica Montmorillonite

作　　者：宋学敏 陆善祥[1] 徐止戈 李承烈[1] 刘馥英[1] 

机构地区：[1]Laval大学,华东理工大学联合化学反应工程研究所,华东理工大学化学系,华东理工大学石油加工研究所

出　　处：《华东理工大学学报（自然科学版）》1994年第4期528-534,共7页Journal of East China University of Science and Technology

摘　　要：对不同镍含量的镍取代云母蒙脱石（ＮｉＳＭＭ）样品，通过ＸＲＤ分析，阳离子交换容量和比表面积测定，证明随着镍含量的）增加，镍越来越多地进入到单元层结构中。ＮｉＳＭＭ具有与天然蒙脱石相同的层状结构，其层间填充着可被交换的阳离子。这些阳离子大多数是ＸＲＤ的ｄ＿（０６０）值和红外光谱的骨架振动吸收带进一步表明，镍是进入到单元层中八面体片的六配位中心离子的位置上。ＮｉＳＭＭ的结构稳定性高于天然蒙脱石。The structure of NiSM M(Nickel-Substituted Mica Montmorillonite) samplesprepared under different conditions were characterized by means of XRD analysis,CEC andsurface area measurements,and IR analysis. It was shown that mote nickel enters the layerstructure of NiSM M when more nickel is added to starting matcrials for the synthesis. NIS-MM has the same layer structure as that in natural smectite.There are exchangable cationsbetween the layers, most of which are The d_(060) value of XRD pattern and the skeletalvibration of IR spectra reveal that nickel ions are located at the centers of octahedra inthe unit layer of NiSMM.

关 键 词：镍 催化剂 蒙脱石 云母蒙脱石 XRD 

分 类 号：O643.36[理学—物理化学]