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ID:31949533
大小:3.11 MB
页数:71页
时间:2019-01-29
《rf气凝胶的制备、掺杂与分子结构理论.研究》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、四川大学硕扣学位论文2.PrimaryinvestigatedthepreparationmethodsofMetalDopedRFaerogel,usingnanometernickelpowder,TiCI4,andTi(OCdH9)4asadulterants.Theexperimentresultsindicatedthatchemistrymethodisbetterthanphysicmethodinaspectsofaerogelscharacteristic,theuniformityo
2、fadulteration,anddosageofadulterants.3.TestedthemicrostmctureandcharacteristicsofRFaerogels,CRFaerogelsandDopedRFaerogelswithmodemanalysisandmeasureartifices,suchasSEM,TEM,FTIR,XPS,XRD,andBEtTheresultsindicatedthatRFaerogels,CRFaerogelsandDopedRFaerogels
3、arenotcrystalloidinsubstanceandhavesimilarnanometernetworkstructure;Physicdopemethodachievednanometermetalclusterpowderwrappedbyorganicmaterial,buttheuniformityofadulterationisbaddish,anddosageofadulterantsislimited,fimhermoreitalsodifficulttOavoidtheoth
4、erelementsdopedinaerogelsbesidesC、H、o:Chemistrydopemethodisbetterintheuniformityofadulteration,anddosageofadulterantsismorethanphysicmethod,furthermoreitachieved’'uncontaminative”dopeofRFaerogels,andhasspecialimportantapplicationsignificancefortheprepara
5、tionandresearchofICFtargets.4.OptimizedtheequilibriumgeometrymoleculestructureandenergyofresorcinolandformaldehydealongwithmethyolresoreinolthefirsttimewithB3LYPmethodsand6—31lG++basissetsandanalyzedthesmallestenergystructureofsingle/multi—methyolresorci
6、nol;Theelectrondistributionofresoreinolandformaldehydeandsingle/multi—methyolresorcinolarecalculated,thenprimaryinvestigatedthedirectionoftransformfromsubstabilizationtostabilizationandtheprincipleofgelup,growth;Thepapercalculatedthemoleculardiameterandv
7、ibration仔equencyofsingle/multi-methyolresorcinol,thensimplydiscussedthemodesofvibrationfrequencies,andthecalculatedresultsareingoodagreementwiththeexperimentalresults.Atthesametime,theeffectofisotopesubstituteandtemperatureandpressureonvibration厅equencya
8、ndthermo·chemistryareprimarystudied,thengottheeffectOnvibrationfrequencyofdifferentpositionhaveisotopesubstituteandthecul-veofentropy(53changedwithtemperatureandpressure.IV四川大学硕士学位论文keywords:ICFresorcinol-formaldehydeaerog
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