非硅基二氧化錫介孔材料及其復(fù)合體系的研究.pdf

1、上海大學(xué)碩士學(xué)位論文非硅基二氧化錫介孔材料及其復(fù)合體系的研究姓名：周小安申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：張建成20050301圭查查堂堡主堂竺堡蘭——AbstractIn1992，researchersatMobilCorporationusedliquidcrystaltemplatetosynthesizeanewfamilyofmesoporoussilicatesandaluminosilicatesknownasthe

2、M41SfamilyTheseorderedmesoporousmaterialswithatunedarrayporestructure，veryhighspecificsurfaceareaandexcellentthermalstabilityhaveattractedmuchattentionbecauseoftheirwidelypotentialapplicationinmanyfieldssuchasadsorption，

3、catalysis，optics，electronicsandmagneticetcSn02mesoporousmaterialwassynthesizedinacidicmediumthroughsol—gelmethodsbyusingdifferentsurfactantsuchascetytrimethylammoniumbromide(CTAB)andtriblockcopolymersurfactant(F127)asate

4、mplateThecharacteristicsofsampleswereinvestigatedbyusingsmallangleXraydiffraction(SAXRD)，Infrared，transmissionelectronmicroscopy(TEM)andN2adsortiontechnique，etcThethesishasdiscussedsomeaffectingfactorsincludingthetempera

5、tureofreaction，theamountofthetemplatesandhydrochloricacidonmaterialsstructureTheresultshaveindicatedthatthesolgelprocessingofprecursorandinteractionbetweenorganictemplateandprecursorareveryimportantfactorsonsynthesizingo

6、forderedmesoporousmaterialsThekineticfactorsforhydrolysis—condensationreactionsuchasacid，temperatureandkindoftemplatehadalsoimpactsontheformationmesophaseThestudyingresultsofmodificationoftheSn02mesoporousmaterialsshowed

7、thatthepropertyandstructurewouldbeimprovedbytheadditionoftheotherchemicalssuchastitaniumelementsAndX—raydiffractionpatternsindicatedthatthematerialshadaperiodicregularporestructureTheresultsofN2adsorptionanddesorptionsho

8、wedthatthecompositematerialshadveryhighspecificsurfaceareawithaporechannelsizeabout4011111Theexperimentalresultsrevealedthatitnotonlyintroducereactionactivesitesbutalsoimprovethethermalstabilityandrangeoforderporestmctur