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1、西北師范大學碩士學位論文金屬氧化物納米材料的制備、表征及應(yīng)用姓名：李生英申請學位級別：碩士專業(yè)：分析化學指導(dǎo)教師：高錦章;楊武2003.5.18—L—iS．h．en．g．yi．ng—：—P。re．p．a(chǎn)r．a(chǎn)，ti．on．,．C—ha—r—ac，te—r—iz—at—io—n—a—nd—A—p—p—lic—a—ti—on—o—f—M—e—ta—l—ox—M—e—n—a—no—m—ateriats．．．．——。．——?！狝bstractStone，broke，iron：civilizationhasalwaysbeendefinedbyMan’Srelation
2、shipwithmaterials．Nowadays，materialshavebecomeallintegralpartofoursociety,aswellasourdailylife．Muchofthetechnologicalprogressisdirectlyorindirectlydependentontheavailabilityofadvancedmaterials塒thimprovedfunctions．Nanomaterialsisanewclassofmaterialsthathasbeenmakingasilentrevolutioninth
3、elastdecade．Itisthefoundationofthenanoteehnology，andiscausingallextensiveconcelTlofallovertheworld。Thepropertiesofthenanomaterialsshowremarkableimprovementordeviationfromthepropertiesexhibitedbythecoarsergrainedmaterials．Theyexhibituniqueoptical，magnetic，electric，orcatal),ticproperties
4、．Thesepropertiesareattributedtothesignificantincreaseingrainboundaryareaduetothesmallgrainsize，andareneithercorrespondstOthoseofthefreeatomsormoleculesmakinguptheparticlenortOthoseofthebulksolidswithidenticalchemicalcomposition．Areasofapplicationthatcarlbeforeseentobenefitfromthesmalls
5、izeincludequantumelectronics．nonlinearoptics，photonics，chemoselectivesensing，andinformationstorageandprocessing，adsorbents，catalysis，solarcells，magneticrecordingdevices，superplasticceramics，superhardmetals，metastablealloysandSOon．Ingenera／，researchesinnanomaterialsfiremainlyconcernedwi
6、ththedevelopmentofnewsynthesismethods，newwaysofidentilyingandcharacterizingmaterials，andtheapplicationsofthem．Ofcourse，thefirststepisthesynthesisoftherequiredmaterial．Inthelastfewyears,thekeydirectionofnanomaterialslayinthesearchfornewsynthesismethodsofnanomaterialswithdesiredandcontro
7、llableproperties。Atthesametime，thecharacterizationofmaterialsisacriticalingredienttoprogress，becauseitprovidesguidanceforfilrtherresearchefforts．Thisthesisreportsonthestudyofthepreparation，characterization,andapplicationofmetaloxidenanomateriats。w堍邋繭qualityandlowcost，microwaveirradia
