简介：Usingorganicaquaregia,arecentlydiscoveredpowerfulorganicleachingagent,aneffectiveprocessofrecoveringPtdirectlyfromPt-Aubimetallicnanoparticleswasdemonstrated.ThepuritiesofthePtrecoveredfromamixtureofAuandPtnanoparticlesandfromPt-Aucore-shellnanoparticlecatalystareashighas(99.49±0.22)％,and(95.02±0.08)％,respectively.Thenovelrecoveryprocesspromisesapplicationsincatalysisindustry.

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简介：Theexchangecouplingattheferromagnetic/antiferromagnetic(FM/AFM)interfaceisinfluencedbyboththemagneticstructureandthecrystallinemicro-structure.Co/FeMn/Cothinfilmswith0.4nmPtspacerlayerinsertedintotheCo/FeMnandFeMn/Cointerfacerespectivelyweredepositedbymeansofmagnetronsputtering.ThetwointerfacesuponandbeneaththeFeMnlayershowdistinctbehaviorsbeforeandafterthePtspacerinserted.ThereisaremarkableshrinkoftheinterfacialuncompensatedspinswithintheFeMnbottominterfacialmonolayers,whereasarelaxationofthepinningstrengthoftheFeMninterfacialspinsalongtheout-of-planedirectionoccursatthetopinterface.XRDanalysisindicatesthePtlayerupontheFeMnlayerformsanfcc(002)texture,implyingthemagneticdiscrepancybetweenthetopandbottomFeMninterfaceshascrystallinestructuralorigins.

简介：Pt(Ⅱ)andPd(Ⅱ)complexeswith2',3',4',5,7-pentahydroxy-flavoneweresynthesizedandcharacterizedbyelementalanalysis,molarconductance,IR,1HNMR,TG-DTA,UV-Visspectroscopictechniques,andfluorescenceanalysis.Thescavengingeffectonthesuperoxideradical(O-2)andtheinhibitoryeffectonlipidperoxideswerealsoinvestigated.Boththeligandandthecomplexesexhibitscavengingeffectonsuperoxideradicals,andtheeffectofthecomplexesisgreaterthanthatoftheligand.ThePt(Ⅱ)complexexhibitsthestrongestscavengingefficiency.BothPt(Ⅱ)andPd(Ⅱ)complexeshavetheinhibitoryeffectonlipidperoxides,andtheeffectofthecomplexesisgreaterthanthatoftheligand,butthePt(Ⅱ)complexhasahigheffectofpromotinglipidperoxides.

简介：在现在的工作，一系列Ta/Ru/Co-23?at%Pt有改变的Ruunderlayer厚度的薄电影被磁控管劈啪作响制作。所有这些电影证明c轴比较喜欢对电影表面垂直的取向。c/a比率和有Ruunderlayer厚度的增加的埃及土人层的格子扩大的落下被X光检查衍射(XRD)揭示。Ta/Ru/Co-Pt薄电影的coercivity与Ruunderlayer厚度增加急速地增加，由于有效磁电机水晶的anisotropy常数的改进和磁性的nano谷物的交换去耦。有效磁电机水晶的anisotropy常数的改进被错配Ru层和埃及土人表面归功于到埃及土人层的格子变丑。而且，磁性的nano谷物的交换去耦被归因于磁性的nano谷物的进一步的隔离。