简介：NormalHamanSpectra(NRS)ofsolidPMT(1-phenyl-5-mercaptotetrazole)andMBT(2-mercaptobenzothiazole)andtheirsurfaceenhancedRamanspectra(SERS)adsorbedonthesurfaceofthesilversubcolloidalparticlesarereportedandcompared.ItissupposedthatPMTadsorbedonsilverwithbothNandSatomswhereasMBTmaybeadsorbedonsilverthroughSatom.

简介：Aclearlight-yellowsilversolwhichhasthevisiblespectralabsorptionat390nm,whenadsorbedphenylmercaptotetrazole(PMT)ormercaptobenzothiazole(MBT),hasanewabsorptionat510-550nm.ItwasfoundthattheadsorptionofhalideionscompeteswithPMTandMBT.However,halideionshaveacompletelydifferentinfluencefromPMTandMBTonthespectralabsorptionofthesilversol.Thedifferencesmayresultfromthechangeofthepropertiesofthesurfaceofthesilversubcolloidalparticlesandfromthebondformscombiningadsorbateswiththesubstrates.

简介：Thestructureanddynamicsofelectrode/liquidinterfacesplayanincreasinglyimportantroleinelectrochemistry.Ramanspectroscopyiscapableofprovidingdetailedstructuralinformationatmolecularlevelandnewinsightintotheinterfacialstructure,adsorption,reaction,electrocatalysisandcorro-sion.InthisaccountwewillsummarizesomeprogressesofsurfaceRamanspectroscopyinthestudyofelectrochemicalinterfaces,mainlybasedonourgroup’swork,layingemphasisonthedetectionsensitivity,spectralresolution,timeresolutionandspatialresolutionaswellasthehyphenatedtechnique.

简介：AseriesofCoMo/Al2O3catalystsforselectivehydrodesulfurization(HDS)ofgasolinewerestudiedwithRamanspectroscopy,apowerfulmethodthatcreatesspecifcsignalsforthestatesandthedistributionsofoxidicprecursorsandsulfdedactivephases.ThehighertheMoandCo,thelowerthetetrahedrallycoordinatedmolybdate,andthehigherthepolymolybdate.ButtheamountofpolymolybdatedecreasedwhenCoMoO4appeared.Cobalt-promotedpolymolybdatewastheprecursor,anditsrelativecontentcorrelatedwellwiththeHDSselectivity.Forsulfdedcatalysts,addingthecobalt-promoterledtolocaldistortion-disorderoftheMoS2structureandtheformationofaCoMoSphase.Thismethodcanprovideimportantinformationfordesigningnewindustrialselective-HDScatalysts.

简介：CASnanoparticleswereassembledonthesmoothsurfaceofapieceofsilverbyusing1,4-benzenedithiolascouplingmolecules.TheSEMandresonanceRamanspectroscopiccharacterizationsdemonstratethatthenanosizedstructureofCdSwasstillpreserveduponassembly,andatwo-dimensionalstructureofCdSnanoparticleswasformedonthesubstratesurface.TheFT-Ramanspectraindicatethat1,4-benzenedithiolwascoupledbetweenCASnanoparticlesandthesilversurfacewithatiltedorientation.TheRamanscatteringof1,4-benzenedithiolwassubstantiallyenhancedbytheassembledCdSnanoparticles,probablyduetothealterationofthepolarizabilityof1,4-benzenedithiolandtheelectromagneticinteractionbetweenthedipolesoftheCdSparticlewithitsimageinthemetalsubstrate.

简介：ThevibrationalRamanspectrahavebeenobtainedforpurifiedsolidfilmsC60.Threebandswereobservedoutofthetotalof10thatweretheoreticallypredicted.Somephenomenawhichmaybeduetophoton-inducedoxidationinthevibrationalRamanmeasuringwereobserved.

简介：利用无限维李代数方法处理了在BC分子能谱中含有二级与三级非简谐项的散射体系A＋BC的平-振能量传递问题，获得了散射过程的含有主要动力学参量的跃迁矩阵元和跃迁几率的解析表达式

简介：研究了Fe3＋-金橙G（OG）体系的共振光散射光谱,发现Fe3＋对OG的共振光散射有增强效应。进一步研究发现,其增强值（△I）与加入Fe3＋的质量浓度呈线性关系,对条件进行了优化,并建立了一种测定Fe3＋的新方法,方法的线性范围为0.028～1.00μg/mL,检出限为0.009μg/mL,用于水样中痕量Fe3＋的测定,结果满意。

简介：RemanspectroscopyisusedasatooltomonitorthereactionbetweenN,N’-di（pmethyl）monothioxamidesand1,3-diaminetrimethyleneandtodetectthereactionintermediate.Byobservingchangesof1024cm-1C=Sbandandappearanceofanewbendataround1720cm-1,thereactionmechanismisdiscussed.

简介：Aself-assembledmonolayerfilm(SAM)ofrutheniumphthalocyanine(RuPc)fabricatedonasilversubstratepremodifiedwithanSAMofterephthalonitrile(TPN)wasstudiedbymeansofsurface-enhancedRamanscattering(SERS)andultraviolet-visible(UV-Vis)spectroscopies.TPNwasusedasaligandtolinkRuPcsinceitcannotonlymodifythesilversubstratebutalsodeliverthenitrilegroupsprotrudingfromthesilversurface.Therefore,wecanexploretherelationshipbetweenthestructureandtheorientationofRuPcandtheTPN-modifiedsubstrate.TheUV-VisspectraindicateastronginteractionbetweenRuPcandTPNinthecompositefilm.TheresultisfurtherconfirmedbytheSERSspectraofRuPc-TPNSAM,inwhichthevibrationalbandsarisingfromboththeRuPcandTPNmoietiesappearclearly,indicatingthattheRuPcissuccessfullyassembledontheTPNfilm.

简介：通过对常用黏结剂中杂质元素含量的测定，选择硬脂酸作黏结剂，研磨压片制备样品，用X射线荧光光谱(XRF)法测定铝用炭素阳极材料中硫、钒、钠、钙、硅、铁、镍、钛、铝、镁、磷、铅、锌、铬、锰的含量。通过实验确定了最佳的样品和黏结剂比例为12g炭素试样加入2g硬脂酸，研磨时间为20s。测定铅元素时，选择一点法扣除背景，通过谱线强度数据确定使用PbLβ1作分析线。用铝用炭素阳极材料系列标准样品制作校准曲线，用铑靶康普顿散射内标校正铁、镍、铅、锌、铬、锰等元素，其余元素用经验系数法校正。精密度实验表明，样品中各元素测定结果的相对标准偏差(RSD，n=11)一般在8%以下，最高的钠元素和钛元素也在10%左右，未知样品的检测结果与标准结果没有显著性差异。