具有结晶孔壁介孔镁锌氧复合物.pdf

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1、物理化学学报(WuliHuaxueXuebao)FebruaryActaPs．一Chim．Sin．，2010，26(2)：527-530527【Article】WWW．whxb．pku．edu．cn具有结晶孔壁介孔镁锌氧复合物耿旺昌赖小勇李晓天(西北工业大学理学院，西安710072；吉林大学材料科学与工程学院，长春130012)摘要：以介孔碳为硬模板经过二次填充制备了介孔镁锌氧复合物．采用x射线衍射(XRD)，透射电镜(TEM)，扫描电镜(SEM)，N。吸附脱附等手段对材料的结构及形貌进行了表征．结果表明，所制备的材料在具有高有序介孔结构的同时还具有结晶的孔壁．

2、孔径尺寸均为4．0nm，比表面积均为114．5m2·g．广角XRD结果初步表明，材料中氧化镁和氧化锌复合形成了固溶体．该材料作为一种半导体材料有望在光学器件领域获得新的应用价值．关键词：介孔；MgZnO；半导体；硬模板法；结晶孑L壁中图分类号：0649OrderedMesoporousMgZnOwithCrystallineWallsGENGWang—Chang。'LAIXiao—YongLIXiao-Tian。(SchoolofScience，NorthwesternPolytechnicalUniversity,Xian710072，P．R．China；Co

3、llegeofMaterialsScienceandEngineering,Jil&University,Changchun130012,P尼China)Abstract：OrderedmesoporousMgZnOwassynthesizedusingmesoporouscarbonCMK一3ashardtemplateandMg(NO3)2’61-120aswellasZn(NOzh"6H20asprecursorsforMgOandZnO．respectively．Themorphologyandmesoporousstructureoftheas-pre

4、paredMgZnOwerecharacterizedbyX—raydiffraction(XRD)，scanningelectronmicroscopy(SEM)，transmissionelec~onmicroscopy(TEM)，andN2adsorption—desorption．TheresultsdemonstratethatMgZnOhasahighlyorderedmesoporousstructureaswellascrystallineporewalls．Theaverageporesizeisabout4．0nmandtheBETsurfa

5、ceareaisabout114．5m·g～．Additionally．wideangleXRDresultsindicatethatasolidsolutionofMgOandZnOisformed．Asasemiconductormaterial，mesoporousMgZnOhaspotentialapplicationinopticaldevices．KeyWords：Mesoporous；MgZnO；Semiconductor；Hardtemplatemethod；CrystallineporewallInthepastdecade．mesoporou

6、smetaloxideshaveattractedporoussilicaSBA一15t”一，KIT一6[qormodified—SBA．15【is]asextensiveatentionduetotheirpotentialapplicationincatalysis．hardtemplate．However，mesoporoussilicatemplatecanonlybeManymesoporousmeta1oxidesandtheircompositeshavebeenusedt0preparemesoporousmeta1oxidesthatareno

7、tsolubleorreported，whichweresynthesizedusingsurfactant，polymerasaffectedbveitherdiluteHForNa0H．Forexample．mesoporoussofttemplateq，orusingmesoporoussilica，carbonashardtern-ZnO，whichissolubleinthesolutionofNaOHcannotbeob．plate[一．Comparedto出esurfactant．hardtemplatewasmorerainedusingmeso

8、poroussilica