水表面聚鉬酸鹽{Mo-,72-Fe-,30-}-DODMA有序結(jié)構(gòu)材料的制備.pdf

1、山東大學(xué)碩士學(xué)位論文水表面聚鉬酸鹽MoFeDODMA有序結(jié)構(gòu)材料的制備姓名：范大偉申請學(xué)位級別：碩士專業(yè)：物理化學(xué)指導(dǎo)教師：郝京誠20070420山東人學(xué)壩I學(xué)位論文ABSTRACTNanoscalepolyoxomolybdates(POMs)notonlyownwelldefinedgeometricalstructures，butalsohavemanypotentialapplicationsincatalysis，electr

2、ochemistrybiomedicine，sensorsandmagnetism，etcManyPOMsarequitesolubleinpolarsolventsincludingwaterethanolandacetoneItisknownthatinaqueoussolution，themainpartsofthePOMclustersexistasmacroanions，balancedbysmallcationssuchas

3、Na，NH：or一Accordingtoelectrostaticinteraction，polyoxomolybdatescanbemodifiedbycationicsurfactantsintosurfactantencapsulatedclusters(SECs)whicharenovelpolyoxomolybdate—basedorganicfinorganichybridmaterialsInthispaperwedcta

4、illystudiedtheformationoftheorderedselfassembledstructuresandphasebehaviorfromthreepointsasfollows：1Atfirst，wesynthesizedtwoKeplerate—typesphericalPolyoxomolybdatesMol32andM072Fe30)accordingtotheliteraturesAndtheexperime

5、ntaldataareconsistentwitllthereportedonesoftheliteraturesWetestedtheconductivityandpHvaluesofthetwoclustersinaqueoussolutionandexploretheirbasicprysiochemicalpropertiesTheresultsshowthatM0132andMonFe30lbotllarcweakelectr

6、olytes，andM072Fe30behaveslikeaweakacidinsolutionduetothepartialdeprotonationoftheH20ligandsattachedtotheFecenters2Weobtainedtheunprecedentedhighlyordered，uniform，reproduciblehoneycombarchitecturesattheair／waterinterfaceb

7、YevaporatingorganicsolventThesolventcastarchitecturesofM072Fe30／DODMAcomplexesinorganicmediumwerepreparedattheair／waterinterfacearestudiedbytransmissionelectronmicroscopy(TEM)andscarmingelectronmicroscopy(SEM)Westudiedth