简介：采用简单的溶剂热法成功合成了CdS0.05Se0.05纳米球，采用x射线衍射（XRD）分析，X射线光电子能谱（XPS），X射线能谱（EDS），透射电子显微镜（TEM），扫描电子显微镜（SEM）等检测手段对样品进行纯度和性能的测试．结果表明，表面活性剂PVP对于纳米球的形成起到了很重要的作用．最后，利用时间的演变过程合理的提出了它的形成机制．

简介：ThephotodegradationreactionrateofCHCl3inTiO2particulatesuspensionwasimperovedsignificantlybyHCl-treatment.TheeffectofHCl-treatmentonthephotocatalyticactivityofTiO2wasstrdiedinaPECcellbyusingIntensity-ModulatedPhotocurrentSpectroscopy(IMPS).ThemagntudeofphotocurrentresponseandthecharacteristicfrequenciesoftheupperandlowersemicirclesinthecomplexplaneofIMPSresponsewereanalyzed,andtheccathodicandanodicreactionprocessesofphotogeneratedholesandelectronswerediscussed.Theincreasesinthecathodicandanodicphotocurrentresponseandinthetimeconstantsofbothcathodicandanodicreactionprocessesofphotogeneratedholesandelectronswerediscussed.TheincreasesinthecathodicandanodicphotocurrentresponseandinthetimeconstantsofbothcathodicandanodicreactionprocessesindicatethatHCl-treatmentleadstotheimprovementofthephotocatalyticactivityofTiO2andachangeofthephotocatalytickineticmechanism.

简介：Anewmethodisdescribedfortheelectrolessdepositionofcopperontoglass.Commerciallyavailableglassslidewasmodifiedwithγ-aminopropyltrimethoxysilanetoformself-assembledmonolayer(SAM)onit.ThenitwasdippeddirectlyintoPdCl2solutioninsteadoftheconventionalSnCl2sensitizationfollowedbyPdCl2activation.ExperimentalresultsshowedthatthePd^2+ionsfromPdCl2solutionwerecoordinatedtotheaminogroupsontheglasssurfaceresultingintheformationofN-Pdcomplex.Inanelectrolesscopperbathcontaininaformaldehydereducingagent,theN-PdcomplexeswerereducedtoPd^0atoms,whichthenactedascatalystsandinitiatedthedepositionofcoppermetal.AlthoughthecopperdepositionrateonSAM-modifiedglasswasslowatthebeginning,itreachedtothatofconventionalmethodinabout5min.

简介：Citricacidisanimportantadditiveinfoods,cosmetics,medicineandsoon,butitdischargesabout10tonoffactoryeffluentwhen1tonofcitricacidisproduced.TheCODofthefactoryeffluentisnear20000mg/L.Thetreatmentofcitricacidfactoryeffluentisaseriousprobleminenvironmentalchemistry.Itisfoundthatmolecularsievesupportmetalcomplexeshavehighcatalyticactivityinaerobicoxidationofalkene[1,2].Inthispaper,akindofmolecularsievecatalystwasprepared.Thecatalystwasusedforthetreatmentofcitricacidfactoryeffluentbymethodofcatalyticoxygenoxidation.

简介：“开火的复合真空”和熄灭的水技术在LiFePO4的合成被介绍阴极粉末。样品被加热在真空石英试管封上的预先分解的先锋混合物准备，走水路在sintering温度熄灭跟随。结果显示使用“快熄灭”的处理能成功控制最后的产品的谷物尺寸的增生并且改进它活跃材料的利用比率。样品由这种技术综合了有高可逆的分泌物特定的能力和好周期的电气化学的性能。

简介：PolycrystallinesBi0.5Ca0.5–xLaxFe0.3Mn0.7O3(x=0,0.05,0.10,0.15,0.20,0.25)werepreparedbymoltensaltmethodandshowedperovskiteorthorhombicstructurewithspacegroupPnma.Themagneticmeasurementsindicatethatthecompoundsexhibitantiferromagneticbehaviorinatemperaturerangeof4―300K.ThemeasurementsoftransportpropertiessuggestthatthesubstitutionofLaforCaenhancedtheconductivity,andakinkappearedonthecurveoftemperaturedependenceofresistivityat275K,whichisrelatedtothespin-reorientationinthesamples.