rf气凝胶的制备、掺杂与分子结构理论.研究

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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