硫辅助合成高孔隙率大孔氮化硼材料.pdf

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1、第28卷第3期无机化学学报V0l_28No．32012年3月CHINESEJ0URNALOFINORGANICCHEMISTRY601—606硫辅助合成高孔隙率大孔氮化硼材料孙常慧徐立强马小健钱逸泰(山东大学胶体与界面化学教育部重点实验室，济南250100)摘要：采用硫粉辅助的方法合成了具有一定有序孔洞结构的三维大孔氮化硼材料，具有高比表面积(2301112"g)和高孔隙率(85．6％)，并呈现开孔结构。在未加入硫粉的情况下则只形成完全无序的三维大孔氮化硼，并且比表面积和孔隙率分别降至122m2·和73．7％。热重测试表明两种产品均

2、具有良好的抗氧化性能。本文还对这种大孔材料的形成过程和硫粉的作用进行了初步的探讨。关键词：氮化硼；大孔；孔隙率中图分类号：O613．61；O613．81；O613．51文献标识码：A文章编号：1001—4861(2012)03—0601—06Sulfur·AssistedSynthesisofHighlyPorousMacroporousBoronNitrideMaterialsSUNChang—HuiXULi—QiangMAXiao-JianQIANYi—Tai(KeyLaboratoryofColloidandIntegCace

3、Chemistry,ShandongUniyersity,MinistryofEducation，Jinan250100,China)Abstract：Three—dimensional(3D1macroporousboronnitridematerialswithacertainorderofporearrangementshavebeensynthesizedintheexistenceofsulfurpowders．Theas—obtainedmaterialsexhibitopenmacroporeswithhighspec

4、ificsurfaceareaof230m·g～andhighporosityof85．6％．Withoutadditionofsulfurdisordered3Dmacroporousboronnitridewasformedonlyanditsspecificsurfaceareaandporosityweredecreasedto122m2·g～and73．7％．respectively．Bothoftheproductsobtainedwithandwithoutadditionofsulfurshowgoodoxidati

5、onresistancebelow800℃．Theformationprocessandtheroleofsulfurpowderswerestudied．Keywords：boronnitride；macroporous；porosity0Introductionpolystyrene(PS)spheres)templatingmethods．Boronnitride(BN)isawidebandgap11I—VRecently，asanewporousmaterial，three—compoundwithremarkableph

6、ysicalandchemicaldimensionalorderedmacroporousf3DOM1materialsproperties，forexample，hightemperaturestability，(poresizerangingfrom50nmtoseveralmicrometres)highoxidationandcorosionresistance，highthermalhavebeendeveloped【．Theirpotentialapplicationsconductivity，andlowdielec

7、tricconstant．BNparticlesareenvisionedintherealmsofphotonicbandgapwithvariousmorphologies，suchastube，wire，(PBG)materials，batteryelectrodes，catalyticsupports，platelet，whisker，spherehavebeensynthesizedbyarcadsorbents，membranesforseparationprocesses，anddischarge，laserablat

8、ion，carbothermalreduction，chemicalsensors[~-91．Todate．almostallofthe3DOMtemplate—aidedsynthesis，chemicalvapordepositi