简介：Thesorptionbehaviorandmechanismofanovelchelateresin,diglycolamidicacidresin(DAAR),forSm(lll)wereinvestigated.TheoptimalsorptionconditionofDAARforSm(lll)ispH=6.0inHAc-NaAcmedium.Thestaticallysaturatedsorptioncapacityis190mg/gresinat298K.TheSm(lll)adsorbedonDAARcanbeelutedreaching100%by0.5-2.0mol/LHCIusedaseluant.Theresincanberegeneratedandreusedwithoutapparentdecreaseofsorptioncapacity.Theapparentsorptionrateconstantisk298=1.96×10^-5s^-1.Theapparentactivationenergyis26kJ/mol.ThesorptionbehaviorofDAARforSm(lll)obeystheFreundlichisotherm.Thethermodynamicsorptionparameters,enthalpychangeΔHofDAARforSm(lll)is16.9Kl/mol.ThemolarcoordinationratioofthefunctionalgroupofDAARtoSin(111)is3.ThesorptionmechanismofDAARforSm(lll)wasexaminedbyusingchemicalmethodandIRspectrometry.ThecoordinationbondwasformedbetweenoxygenatomsinthefunctionalgroupofDAARandSin(Ill).

简介：Sm(Ⅲ）wasquantitativelyadsorbedbyaminomethylenephosphonicacidresin(APAR)inthemediumofpH=5.0,Thestaticallysaturatedsorptioncapacityis251mg/g.resin.Sm(Ⅲ）adsorbedonAPARcanbereductivelyelutedby2.0mol/LHCl.Thesorptionrateconstantisk298=1.35×10^-5s^-1.ThesorptionbehaviorofAPARforSm(Ⅲ）obeystheFreundlichisotherm.TheenthalpychangeΔH°ofsorptionis24.9kJ/mol.TheapparentactivationenergyisEa=11.7kJ/mol.ThesorptionmechanismshowsthatthenitrogenandoxygenatomsofthefunctionalgroupofAPARcoordinatedwithSm(Ⅲ）toformcoordinationbond.

简介：Thepresentpapercontainsthereactionmechanismoftherareearthcomplexwith2-(2-arsenophenylazo)-7-(2,6-dichloro-4-fluoro-phenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonicacid(DCF-arsenazo)studiedpreliminarilywithafullyautomatedstopped-flowanalyzer.AmethodwithahighsensitivityandselectivityisproposedforthesimultaneousdeterminationofsamariumandgadoliniumbasedonthedifferentialkineticreactionoftherareearthcomplexwithDCF-arsenazo.SmandGdintheirconcentratedoxidesweredeterminedwiththerelativeerrorslessthan6%.

简介：Themonophthalocyaninecomplexesofsamariumandterbiumcontainingaxial2-mercaptobenzothiazole(PcSm(MBT)(1)),2-(2-benzoxazol-2-yl)phenolate(PcTb(OON)(2))or2-(2-benzothiazol-2-yl)phenolate(PcTb(SON)(3))ligandsweresynthesizedandidentifiedbyelemental,LDI-TOFandX-ray(for1)analysis.Photoluminescence(PL)andelectroluminescence(EL)spectraofthecompoundscontainedonlyemissionbandsofphthalocyanineandaxialligandsbutdidnotcontainthebandsoff-ftransitions.Itwasfoundthatamongthecomplexes1,2,3thelatterhadhighestphotoconductivity(~10–7S/cm)andphotovoltaicproperties.Anorganicphotovoltaicdevice(OPV)ofconfigurationofITO/3/C60/Alq3/Alrevealedopen-circuitvoltage(VOC)of0.24Vandshortcurrentdensity(ISC)of0.3μA/cm2underilluminationbyaxenonlampat17mW/cm2.

简介：Theeffectsofsamarium(Sm)oncarbon-methanationandcatalyticactivityoftheBa-Ru-K/AC(activecarbon)catalystforammoniasynthesiswereinvestigated.Theadditionofsamariumimprovedsignificantlytheactivityandstabilityofthecatalyst.Theresultsoftemperature-programmeddesorption(H2-TPD)andin-situ-TPSRFTIRindicatedthatsamariumimpededtheadsorptionofhydrogenonthecatalystsurface,thusleadingtothehighcatalyticactivityandresistancetocarbon-methanation.XRDpatternsreve...

简介：ThesolventextractionofPr(Ⅲ)andSm(Ⅲ)withtrialkylphosphineoxide(Cyanex923)inchloroform,carbontetrachloride,n-octane,cyclohexane,1,2-dichloroethane,benzene,toluene,xyleneandnitrobenzenefromacidicnitratemediumwasinvestigated.Onthebasisofslopeanalysisdata,thecompositionoftheextractedspecieswasdeterminedas(M(NO3)3?2CY923),CY923referstoCyanex923.Thevaluesoftheequilibriumconstantsandtheseparationfactorswerecalculated.Theeffectofthediluentsonthemetalextracti...

简介：AninorganicnanomaterialscombinationofSm,Ag,andTiO2wassynthesizedusingsupercriticalfluiddrying(SCFD)combinedwithsol-geltechniques.Thestructure,photocatalysisandbacteriostaticactivityofthematerialswerecharacterizedbyX-raydiffraction(XRD),transmissionelectronmicroscopy(TEM),X-rayphotoelectronspectroscopy(XRPS),photocatalyticperformance,andantibacterialactivityexperiments.TheXRDresultsshowedthattheaverageparticlediameterofSm/Ag/TiO2was14.62nmandAgandSmionsweredispersedonthesurfaceofTiO2inahighlydispersed,amorphousform.TheTEMimageshowedthatthesizeoftheparticlewas12nmusingtheschererformula.TheXPSresultshowedthattheelementSmwasdopedandAgwasloadedinorganicnanomaterialssuccessfully.Sm/Ag/TiO2exhibitedoptimalphotocatalyticpropertiesat600oC,thephotocatalyticoptimalproportionofSm/Ag/TiO2was2:2:100.Whenthemolarratiowas2:2:100,thebacteriostaticcirclediameterwas16mmforStaphylococcusaureus,theminimumbacteriostaticconcentrationwas200μg/mLforwhitebeadscoccus,andtheminimumbactericidalconcentrationwas2×104μg/mLforwhitebeadscoccus.TheSEMresultsshowedthattheantibacterialmaterialattachedtothecandidaalbicanscellsurface,cellsappearedfolddeformation.ThereforetheinorganicnanomaterialsSm/Ag/TiO2hadhightemperatureresistance,goodphotocatalyticandantibacterialcharacteristicsinvisiblelight.

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简介：从有水杨酸酸和thioproline的钐氯化物hexahydrate的反应的产品，[Sm(C7H5O3)2灭牥瑡牵?慷?楦瑴摥戠?敬獡?煳慵敲?敭桴摯?慂敳?湯琠敨映瑩整?潰祬潮業污?桴?浳潯桴摥栠慥?慣慰楣楴獥愠摮琠敨浲摯湹浡捩映湵瑣潩獮漠?桴?潣灭畯摮爠汥瑡癩?潴琠敨猠慴摮牡?敲敦敲据?整灭牥瑡牵?????眠牥?慣'褯N瑡摥愠摮琠扡汵瑡摥愠?‵?湩整癲污?吠敨挠湯瑳湡?潶畬敭攠敮杲?景挠浯畢瑳潩?景琠敨挠浯潰湵?瑡吠企??‵?慷?敭獡牵摥戠??牰'酞洕?硯杹湥戭浯?潣扭獵楴湯挠污牯浩瑥牥愠?啣????7敢?敤楬敶敲?景？

简介：Amildandrapidmethodwasfoundforthereductivecleavageofthecarbon-sulfurbondinthealkylthiocyanatesbysamarium/Cp2TiC12systemtogivethecorrespondingdialkyldisulfidesinmoderatetogoodyields.

简介：La15Fe77B8hydrogenstoragealloyswerepreparedusingavacuuminduction-quenchingfurnace.TheresultsofX-raydiffraction(XRD)andscanningelectronmicroscopy(SEM)suggestedthatLa15–xSmxFe2Ni76Mn5B2(x=0,2,4,6)alloyshadmultiphasestructureincludingthemainLaNi5phase,La3Ni13B2phaseand(Fe,Ni)phase.WiththeincreasingsubstitutionofSmforLa,themainphasestructureofalloysdidnotchange,whiletheunitcellvolumesdecreased,thecyclestabilitywasimprovedandthemaximumdischargecapacitydecreased,butthelowtemperaturemaximumdischargecapacityofthesamesubstitutionalloywasgraduallyapproachingthemaximumdischargecapacityatroomtemperature,whichshowedthatLa15Fe77B8hydrogenstoragealloysofthepartialsubstitutionofSmforLahadbetterlow-temperaturedischargeability(LTD).Forthesamesubstitutionalloys,self-dischargecharacteristicsandcyclestabilityatlowtemperaturewerebetterthanthatatroomtemperature.Furthermore,thehigh-ratedischargeability(HRD)andtheexchangecurrentdensityI0firstincreasedandthendecreasedwiththeincreasingofSmcontent,whereasthehydrogendiffusioncoefficientDinalloybulkdecreasedgradually,whichindicatedthatappropriatesubstitutionofSmforLaimprovedtheelectrochemicalkineticspropertiesofthealloys.TheHRDwasmainlydominatedbythecharge-transferrateonthealloysurface.

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简介：在有ArSSAr的THF的SmI2的反应生产了二binuclear钐thiolate建筑群[(THF)3I2-Sm(-SAr)]2[Ar=Ph(1)，4-Me2NC6H4(2)]在高收益。2的结构被单个水晶X光检查晶体学描绘。2的水晶与空格组和a=0.95705(13)一起属于三斜晶系的系统nm，b=1.22287(14)nm，c=1.26450(14)nm，=64.194(11)??匭吗？？v？？