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(虽然短短5页，这可是本主一个多月的工作结晶，往对大家有帮助，别忘了给赞)P1Greeting:Thanksforintroduction.Helloeveryone.Wellcometomytalk.Thanktheorganisersforgivingmethisopportunity.Self-introduction:Mynameis[yourname]aphdstudentatgroupofProf.[youradvisor]whoissittingthere.Wecomefrom[yourUniversity],China.Asyouknow,nanjingisacitywithalonghistorywhichlocatesinthesouth-eastofChina.Subject:Today,I’mgoingtotalkaboutourrecentworkabout[yourtitle].P2Outline:Mypresentationisdividedintofourparts:Background;Morphologycontrol;Catalysis&Drug-delivery;Summary.P3（Introductionofthebackground）Inthepast,numerousresearcheshavebeendonefocusingonmicro-andmacro-scale.But,thereisacentralissue,howtheunderstandingatthemicro-scalecanenablepredictionsoffunctionalbehavioratthemacro-scale.Then,anewawareness,alsoanopenconcept‘mesoscalescience’hasrecentlyemergedtolinkthemicro-tothemacroscale.Itisclearthatporousmaterialshavegreatpotentialduetotheirvariouscomposition,structureandmorphology.（Mytheme）Inthistalk,wefocusoncontrollablesynthesisofmorphologyanduseitasmesoscaletoobtainthequantificationandoptimizationoftherelevantprocesses.P4（CatalysisVSyourmaterials）Asforheterogeneouscatalysis,itiswidelyknownthatmacroscopicparameterssuchastheyield,selectivity,productsandrateofchemicalreactionsarerelatedtothenano-structureofcatalystincludingmorphology,size,poreandcomposition.Becausenano-structurecanproducevariouseffectsonchemicalprocesssuchas….P5（Drug-deliveryVSyourmaterials）Andwhenitcomestodrugdelivery,themorphologyandsizeofporousmaterialsaretwomainsubjects.(youcanrefertosomereferencestosupportyouridea)Prof.Moufoundthatrod-likeparticleshavemany优势（pointing）comparedtospheremorphology.Prof.Tangstudiedmesoporoussilicananoparticleswithaspectratiofrom1to5asdrug-carrier.ShefoundthattheARofMSNsaffectgreatlytheseaspects.vivobiodistribution,clearance,andbiocompatibilityandsoon.Inaddition,sheproposedthatparticleswithalargerARgenerallyaffectcellstoalargerdegreecomparedtoMSNswithasmallerAR.Therefore,giventhisresult,itisnecessarytoexpandtheshapeeffectstudiestoawiderange.P6Periodicmesoporousmaterialshavebeenwidelystudiedinmanyfields,suchascatalysis,sensor,drug-deliveryandseparation.BecausetheyhaveLargeSurfaceArea,AdjustablePoreSize,HighThermalStabilityandFlexibleFramework.Especially,theFlexibleFrameworkmakethecontrollablesynthesisofmorphologypossible.P7(emphasizetheimportanceofyourwork)Thus,weusemesoporoussilicaasGoodCarrierOrSupport.Next,wetrytoobtainthecontrollablesynthesisofmorphologyandsize.Afterthat,wecanintroduceavarietyoforganicorinorganicmodification.Finally,thefunctionedmesoporousmaterialswithcontrollablemorphologyandsizecanpalyasagoodmeso-scaletoexpectthequantificationandoptimizationoftherelevantprocessesbetweenmicro-scaleandmacro-scale.However,comparedtothesynthesisofmesoporoussilica,thetwopartsaremoredifficult,whichnotonlyneedaflexiblemethod,butalsoneedfinecontrolofsynthesisconditions.Therefore,itisstillachallengeforresearchers.P8(introductionofsynthesisprocess)Next,wearegoingtointroduceourworkaboutmorphologycontrol.Briefly,inthesynthesisprocess,weusetwosurfactants.weput…and…intoconcentrated….Untilthesolutionbecametransparent,…wereaddedintothesolution,weaddsiliconsourceandheteroatomsourceundercertainconditions.Aftherthefollowingtreatments:Hydrothermaltreatment,centrifugation,drynessandcalcination.Finally,wegettheproduct.Obviously,thisprocessissimple,andthetwo-surfactantsarecheapandeasy-obtained.So,ithasgreatpotentialforscale-upproduction.P9(myaimsofmywork)Inordertogetfullcontroloflength,diameter,andporesizeofnanotube,wetrytochangesynthesisconditions…andsoon.However,inthisdual-surfactantsystem,wefoundthemorphologywasaffectedgreatly….P10(introductionofmydetailedwork)Firstofall,wetesttheeffectsoftheamountof...onmorphology.Weincreasetheamountof...andkeep...constant.TheSEMimagesfromatogshowwiththeincreasingof...,themorphologystartsbylongparticles,then,changesintoshortones.Thecorrespondingsizesarelisted.Moreover,TEMimageofA2demonstratetwodimensionhexagonalstructureandthehighlyorderedhoneycomb-likestructure.P11Inaddition,weuseXRDandN2physisorptiontogetinformationofmesostructure.FromXRDandporesizedistributionpatterns.wecanseethatwiththeincreasingof...,therearetwosectionsinthepatterns.FromA0toA2,the100peaksshifttolowerangel,meanwhile,thecorrespondingporesizebecomebig.AndfromA3toA7,the100peaksmovetohighangel,however,theporesizearealmostthesamewithA0.And,althoughthepeaksofA6andA7becomebroadandweak,allsamplesgivesimilarnitrogensorptionamountandTEMpatternofA7showthechannelsremainintactwhichindicatesthatthemesoporesareremaineddespiteoftheincreasingamountof....And,thebroadpeaksofA6andA7mayattributetothedereasingsizeofparticles.P12Next,westudytheeffectsofamountof...onthemorphologyofmaterials.Wekeeptheamountof...constant,anddecreasetheamountof....Asshownhere,Wecanseethatthechangingtrendofmorphologyisthesamewiththeeffectofincerasingamountof....TEMpatternofB1synthesizedwithlowamountof...showscollapsedchannels.P13Inthisslide,Iwilltalkaboutthepossiblereason.Asshownhere,wecanalsofoundwiththedecreaseof...,th