磁性納米炭粉的制備及表征.pdf

1、大連理工大學(xué)碩士學(xué)位論文磁性納米炭粉的制備及表征姓名：王風(fēng)霞申請學(xué)位級別：碩士專業(yè)：化學(xué)工藝指導(dǎo)教師：王同華20080601磁性納米炭粉的制備及表征，11lePreparationandCharacterizationofMagneticNanoCarbOnPowdersAbstractMa印eticn觚omaterialisa鵬wmaterial印pearedinthe1980’sDuetothceffectofthenanomate

2、rialsnOtonlysmalls泣eeffect，quantums娩eef!fj瞅，surfaccef!fbct鋤dmacroscopicquantumtu如ele儂斌，butthcma印eticfunctionsuch弱ma印eticrecordin島magIletics印amtiOn，waveadS0rbingands0onTherefore，嬲anewmaterial，maglletic舶n0cafbonpowde璐occup

3、y觚import孤tpositioninthefieldofel耐ronic，iI怕冊ation，a鰣culture，aerospace，chemistry觚dbiomedicaletc，觚dhavebeen∞e0fthehotspotsiIlmecu玎cntresea塒lfieldonmaterialsAtpresent，therearcseVeralmethodst0prepa陀magneticpartid骼such弱prccipi

4、tationmethod，hydrothe珊almethod，micr0鋤ulsionandreVersemicr0emulsionmethod，solgelmethod，chemicalVapordepositionmethod卸deVaporationconden阻tionmethodandsoonIllallthesemethods，duetoitsadVantagesofmild陀actionconditio璐，nothighd

5、em觚doftheequipmenttechnology，gplodsystemchemicalhomogeneity，higllpurityofprcparedproduct，unifb冊distributionofparticlesizeandnanDws娩edistribution，sol—gelmethodhasbecaInetheprimar)rme鋤sinprep撕ngn觚oma印eticmatcrialathome觚dab

6、roadInthispaper，Themagneticnanocarbonpowde磚werepreparedbysol—gelmethod，inwhichthecoaltarpitchw硒firstoxid訖edint0aquamesophasepitch㈣P)bymixturesofconcentratedsulfuriCacid卸dnitricacid，鋤dthentheAMPw嬲dis∞lVedinaqueous∞lutiOn0

7、famm0Iliahydroxidetof0肌thec缸bonaceoushydrogel，inwhichVariousferricsaltsolutionw弱addedtof0冊compositeFlc／Cgclthen，theFc／Cgcld訛ctlyexChaIlgedwitheth觚oltemovewater觚ddriedatroomtemperatureAftercarbonizationatcenaintemperature

8、s，themagneticnanocan0np()wde瑙wercobtainedThercse眥hincludesthatusinghotpumpingfiltrationtoreplaccthepreVious∞ldmethodt0impr0VetheprocessconditionsinAMPpreparationMoreoVer，theinflueI舭ofstirringVelocityontheyieldsandpropert

9、iesofAMPwerestudiedTheVariouscompositeFe／Cgelswere90ttenbyadddif詫rentferroussaltusingthesolgelmethod，theFe／Cgelwasdriedat啪mtemperatureandcarbonizedatdifferenttempcraturest0gctthema印eticn觚ocafbonpowde璐TheAMP，theprimaryma即

10、eticn鋤oc打bonpowde鵂鋤dlheirheattrcatedproductSwithdifferentFccontentwerecharaCterizedbyFT瓜，1G，XRD，TEM，MH100psandwaveabsorbingpe喲rmancetestThercsultsshowthatthe陀actionssuch硒nitmtion，oxidation觚dsulfonationmainlyhappeneddurin