学科分类
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21 个结果
  • 简介:Theorganic/inorganicnanocompositespolymerelectrolytesweredesignedandsynthesized.Theorganic/inorganicnanocom-positesmembranematerialsandtheirlithiumsaltcomplexeshavebeenfoundthermallystablebelow200℃.Theconductivityoftheorganic/inorganicnanocompositespolymerelectrolytespreparedatroomtemperaturewasatmagnituderangeof10-6S/cm.

  • 标签: ORGANIC/INORGANIC NANOCOMPOSITES POLYMER ELECTROLYTE POLYMER LITHIUM
  • 简介:OrganicmodifierswereeffectivebothtoextendthemigrationtimewindowandtoimprovetheseparationofveryhydrophobiccompoundsinMEKC.Aniterationmethodwasusedtodeterminethemigrationtimeofmicelles.Thequantitativerelationshipbetweenthecapacityfactork’andtheconcentrationoforganicmodifierswasderived,whichwasinvestigatedexperimentally.Thelinearsolvationenergyrelationships(LSER)methodologywasappliedtoMEKC,andgoodlinearrelationshipsbetweenInk’andsolvatochromicparametersof15soluteswereobtainedinthepresenceoforganicmodifierindifferentconcentrations,whichindicatedanewaccessinMEKCtopredictk’fromthestructuralparametersofsolutes.TheeffectofcolumntemperatureTonk’wasalsoinvestigated.

  • 标签: MICELLAR ELECTROKINETIC CHROMATOGRAPHY organic MODIFIERS capacity
  • 简介:Theoreticalconsiderationwasproposedforthefrequencyresponseofaseriespiezoelectricsensortothepropertiesofliquidandverifiedexperimentally.Thiskindofsensorhassensitiveandselectivefrequencyresponsetothepermittivityandspecificconductivityofsolutionwithexcellentstability,andwasappliedtothedeterminationofmicro-contentofwaterinorganicsolvents.Thedetectionlimitis0.01g/Lindioxane.

  • 标签: PIEZOELECTRIC QUARTZ CRYSTAL chemical SENSOR micro-water-content
  • 简介:Thepaperdealswiththedegradationoftheorganiccompoundsinthecokeplantwastewaterbythecombinedprocessofultrasonicirradiationandactivatedsludge.Theinfluencefactorsoftheultrasonicdegradationeffectsuchasairatmosphere,initialconcentration,ultrasonicpowerdensityandthecategoryandconsumptionofcatalystwereinvestigated.Awaterqualitymodelwasusedtoexplainthedegradationofdifferentkindsoforganiccompoundsinthecokeplantwastewaterbyultrasonicirradiation.Afterthewastewaterwastreatedbythecombinedprocessofultrasonicirradiationandactivatedsludge,theCODdegradationefficiencywas95.74%,whichis63.49%higherthanthatbytheprocessofactivatedsludgealone.

  • 标签: 超声辐射 炼焦废水 有机物质 活性污泥 分解反应 综合过程
  • 简介:HEATS OF INTERACTION OF ORGANIC BASES WITH POLYMER PROTECTED CATALYST PVC-AlCl_3HEATSOFINTERACTIONOFORGANICBASESWITHPOLYMERPR...

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  • 简介:Opto-thermaltransientemissionradiometry(OTTER)isainfraredremotesensingtechnique,whichhasbeensuccessfullyusedininvivoskinmoisturecontentandskinmoisturedepthprofilingmeasurements.Inpresentpaper,weextendthismoisturecontentmeasurementcapabilitytoanalyzethemoisturecontentoffruit(tomato,grape,etc.)skins,andtostudytherelationshipbetweenfruitsripeningprocessandtheirsurfacemoistureandmoisturedepthprofiles.

  • 标签: 光热瞬时发射 水分含量 有机材料 湿度测量 激光 红外线
  • 简介:Theeffectsofvariousfactorsontheelectrocarboxylationoforganiccompoundswithcarbondioxidecatalyzedbymetalloporphyrinarestudied.Theoptimalpotentialofelectrocar-boxylationis-1.6V(vs.SCE).Aweakproticsolventmethanolcanenhancecatalyticactivity.Tetrabutylammoniumiodideisthebestoneoffiveelectrolytes.Theyieldsandcurrentefficienciesofelectrocarboxylationareincreasedslowlyastheconcentrationofcatalystincreases.

  • 标签: methanol IODIDE slowly catalyzed dioxide DALIAN
  • 简介:ThemolecularsieveVPI-5wassynthesizedbyusingvariousorganicamines(DEA,Di-PA,DBA,DPenA,TBA,DEOAandTEOA)asthestructure-directingagent.TheuseofDPAenlargedtherangeofthecrystallizationtemperaturefrom110℃to190℃inthesynthesisofVPI-5,whiletheuseofTEOAchangedthecompositionofthereactantsinabroadvariety.DiaminesarethetypicalaminesinthesynthesisofVPI-5.AmongthemDBAandDPAarethemostfavoritestructure-directingagentsforthesynthesisofVPI-5molecularsieve.

  • 标签: VPI-5 MOLECULAR SIEVE AMINES
  • 简介:Aseriesofnovelamphibiousorganic/inorganichybridprotonexchangemembraneswithH3PO4dopedwhichcouldbeusedunderbothwetanddryconditionswaspreparedthroughasol-gelprocessbasedonacrylatedtriethoxysilane(A-TES)andbenzyltetrazole-modifiedtriethoxysilane(BT-TES).Thedual-curingapproachincludingUV-curingandthermalcuringwasusedtoobtainthecrosslinkedmembranes.Polyethyleneglycol(400)diacrylate(PEGDA)wasusedasanoligomertoformthepolymericmatrix.Themolecularstructuresofprecursorswerecharacterizedby1H,13Cand29SiNMRspectra.Thethermogravimetricanalysis(TGA)resultsshowthatthemembranesexhibitacceptablethermalstabilityfortheirapplicationatabove200oC.Thedifferentialscanningcalorimeter(DSC)determinationindicatesthatthecrosslinkedmembraneswiththemassratiosofbelow1.6ofBT-TEStoA-TESandthesamemassofH3PO4dopedasthatofA-TESpossessthe-Tgs,andthelowestTg(-28.9℃)existsforthemembranewithdoublemassofH3PO4dopedaswell.Thehighprotonconductivityinarangeof9.4―17.3mS/cmwiththecorrespondingwateruptakeof19.1%―32.8%ofthemembraneswasdetectedat90oCunderwetconditions.Meanwhile,theprotonconductivityinadryenvironmentforthemembranewithamassratioof2.4ofBT-TEStoA-TESanddoubleH3PO4loadingincreasesfrom4.89×10-2mS/cmat30℃to25.7mS/cmat140℃.Theexcellentprotontransportabilityunderbothhydrousandanhydrousconditionsdemonstratesapotentialapplicationinthepolymerelectrolytemembranefuelcells.

  • 标签: 复合质子交换膜 有机/无机 导电行为 聚合物电解质膜燃料电池 制备 三乙氧基硅烷
  • 简介:Anewinorganic-organichybridtetravanadate[Co(2,2′-bpy)3]2V4O12·11H2O(1)hasbeenpreparedandcharacterized.X-Raydiffractionstudyrevealsthatcompound1containsclassicalclusteranions[V4O12]4–,coordinatedcations[Co(2,2′-bpy)3]2+andelevenwatermolecules,inwhichaninterestingdecamerwaterclusterisformed.Thehybridnanoparticleswerefirstlyusedasabulk-modifiertofabricateachemicallymodifiedpasteelectrode(1-CPE).Theelectrochemicalbehaviorandelectrocatalysisof1-CPEhavebeenstudiedindetail.Theresultsindicatethat1-CPEhasagoodelectrocatalyticactivitytowardthereductionofbromateina0.5mol/LH2SO4aqueoussolution.1-CPEshowsremarkablestabilitythatbeascribedtothehydrogenbondinginteractionsbetweenV4O12clusterandwatercluster,whichareveryimportantforpracticalapplicationinelectrodemodification.

  • 标签: 化学修饰电极 有机复合 无机 应用 化学修饰碳糊电极 制备
  • 简介:Theeffectsofpeptides,aminoacidsandorganicbasesasanaxialligandonreactionac-tivitiesintheelectrocarboxylationofbenzylchloridewithCO2catalyzedbyCoTPParereported.Theimidazoleorganicbase,peptidecontaining—SHandaminoacidcontainingimidazolylen-hancethecatalyticactivity.TheeffectofimidazoleamountsonthecatalyticactivityofCoTPPisstudied.

  • 标签: IMIDAZOLE BENZYL CATALYZED bases inorganic axial
  • 简介:三新混合器官/无机的聚合ligand交换chiral静止阶段被激进的链转移反应和表面grafting在硅石胶化上开发,并且成功地为dl氨基的酸和dl氢氧根酸的enantioseparations使用了。决定被使用包含2.0×的水完成10?是的CuAc2的4mol/L一个活动阶段,40°C的列温度,1.0mL/min和察觉在的流动率紫外254nm。在l异构体前的d异构体的elution顺序为除了dl职业人员,解决的所有dl氨基的酸被观察。

  • 标签: 手性固定相位 配位体 色谱分离法 羟基酸
  • 简介:在这个工作,二个chemometrics方法被申请建模和一些器官、无机的混合物的electrophoretic活动性的预言。连续设计算法,特征选择(矿泉)策略,被用作描述符选择和模型发展方法。然后,支持向量机器(SVM)和多重线性回归(MLR)当模特儿被利用构造非线性、线性的量的structureproperty关系模型。用SVM模型获得的结果与用MLR获得的那些相比表明SVM模型比MLR那个具有更好预兆的价值。分别地,当时,为训练集合的root-mean-square错误和为SVM模型的测试集合是0.1911和0.2569由MLR模型,他们分别地是0.4908和0.6494。结果证明SVM模型急速地在QSPR研究提高预言的能力并且比MLR模型优异。

  • 标签: 定量构效关系 无机化合物 迁移率 耦合方法 应用 电泳
  • 简介:Effectsofself-coilingoforganicmoleculesonintramolecularexciplexformationofcompoundI,inwhichthecarbazolechromophoreandterephthalicacidmethylesteracceptorgrouparelinkedbyone(CH2)10chain,andthedecreaseofthefluorescenceintensitiesofcompoundsⅡ,Ⅲ,andⅣ,inwhichthecarbazolechromophoreand3,5-dinitrobenzoateareconnectedbyonealiphaticchainof(CH2)10(Ⅱ),(CH2)12(Ⅲ),or(CH2)4(Ⅳ),havebeenstudiedinthedioxane(DX)-H2Obinarysystem.Theresultsshowthatself-coilingoforganicmoleculesinDX-H2OfacilitatesintramolecularexciplexformationofIandinducesthedecreaseoffluorescenceintensitiesofⅡ,bacauseoftheproximityeffectbroughtaboutbyselfcoilingoforganicmoleculesunderhydrophobic-lipophilicinteraction(HLI)betweentheexcitedcarbazolechromophoreandtheacceptor.SincethesimilareffectsareobservedevenwhentheconcentrationoftheprobesarelessthantheirCAgCs(criticalaggregateconcentrations)intheDX-H2Omixturewiththesameφvalues,formationoftheintermolecularexciplexhasbeenexcluded.Theeffectsarefoundtobestronglydependedonφvalues,indicationthattheyaremainlydrivenbyHLI.Thepropertiesoftheacceptorscanalsoaffecttheintramolecularexciplexformation.Withterephthalicacidmethylestermoietyastheacceptor,thecarbazolechromophoreexhibitsthefluorescencespectraoftheexciplex,whilewith3,5-dinitrobenzoatemoietyastheacceptor,onlythefluorescencespectraofexcitedcarbazolylchromophoreareobserved.

  • 标签: 有机分子 荧光性 自卷绕成卷 分子内激态复合物 憎水性-亲油性相互作用