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简介：ThecurrentstatusofcatalyticreforminginChinaisreviewedandaforecastofthedevelopmentinacoupleofyearsoradecadeisgiven.Distinguishedfromthepastdecade,thefuturetrendwillbefocusedonrevamps,expansions,higherseverity,diversifiedfeeds,combinationwithotherprocessesforhigherproductquality,andnovelcatalystsandequipment

简介：催化nanomotors是带机载的催化剂并且在溶液把本地化学燃料变换成机械工作的nano-to-micrometer-sized致动器。这催化剂以及游泳行为展出了的结构指示的几何学的地点。nanomotors能在器官的分子自然地发生，联合自然、人工的部分到形式混血儿nanomotors或完全人工。制造技术由指导electroplating，平版印刷术，物理蒸汽免职，和其它预付生长方法的模板组成。各种各样的物理、化学的推进机制被建议了包括diffusiophoresis，水泡推进，界面的紧张坡度，和自我电气泳动向运动解释行为。通过热调整在外部域，催化合金，和运动控制之上基于的控制和操作也被讨论。催化nanomotors与是实际的结束目标代表令人激动的工艺的挑战能在nanoscale执行许多任务的功能的nanomachines。

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简介：1IntroductionThesupplyofconventionalpetroleumisdecreasingwhileheavyoilresourcesintheworldexceed600milliontons,soheavyoilwillbecomeanimportantenergysourceinthe21stcentury.

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简介：三角形的matrixing修改了松驰模型方程为合成被建立与催化蒸馏过程，和一种新加速的集中技术平淡被采用。合成上的模拟平淡证明计算数据与试验性的结果同意了很好。

简介：TherewasasignificantcatalyticeffectoftraceGd(III)ionsontheoxidativereactionofpotassiumpersulfatewithSaffronTintheaceticacid–sodiumacetatebuffersolution.Thus,acatalytickineticfluorimetrymethodforthedeterminationoftraceGd(III)ionswasestablished.Thefactorssuchasacidity,concentrationofreagents,reactiontime,andtemperatureaswellasinfluenceofcoexistingionswerediscussed.Theoptimumreactionconditionswereestablished.Theapparentrateconstantandapparentactivationenergyofthereactionweredetermined.Thelinearrangeis0.02–0.10lgáml-1,andthedetectionlimitis7.27910-4lgáml-1.ThismethodwasusedforthedeterminationofgadoliniuminthesamplesoflanthanumacetatewithRSDof0.9%–3.1%.

简介：Anewtypeofmixturefuel,sludge-oil-coalagglomerate(SOCA),wascatalyticallygasifiedwithsteaminathermobalancereactorunderatmosphericpressure.Allthefourcatalystsstudied(K2CO3,CaO,NiOandFe2O3)werefoundcapableofenhancingthesteamgasificationrateandsignificantlyincreasingtheconversionofcarbon.TherankingofcatalyticactivitywasfoundtobeK2CO3CaO>NiO>Fe2O3.Amodifiedvolumetric-reactionmodelintheliteraturewasusedtodescribetheconversionbehaviorofthesteamgasificationstudiedbyevaluatingthekineticparameters.ExpressionsoftheapparentgasificationratesforSOCAwerepresentedforthedesignofcatalyticgasificationprocesses.

简介：点火的分叉分析和催化燃烧在的扑灭一突然微隧道被执行，laminar模型作为流动模型合并了。横向的Thiele模量和滞留时间的平方被用作分叉参数。点火和扑灭行为上的不同参数的影响被调查。所有这些参数在点火和扑灭的分叉行为上有大效果在，这被显示出突然微隧道。燃烧的分叉行为上的流动模型的效果也被分析。结果证明与扁平的速度侧面模型比较，为laminar模型的案例，点火的温度和燃烧的扑灭更高，不稳定的多重答案区域更大。

简介：ＣａｔａｌｙｔｉｃＤｅｃｈｌｏｒｉｎａｔｉｏｎｏｆＰｏｌｙｃｙｃｌｉｃＣｈｌｏｒｏａｒｏｍａｔｉｃｓｗｉｔｈＤｉｃｙｃｌｏｐｅｎｔａｄｉｅｎｙｌＹｔｔｒｉｕｍＣｈｌｏｒｉｄｅⅡＣａｔａｌｙｔｉｃＤｅｃｈｌｏｒｉｎａｔｉｏｎｏｆＰｏｌｙｃｙｃｌｉｃＣｈ...

简介：是的乙炔为选择催化减小的一个减少的代理人(C2H2-SCR)不在一系列金属上被调查交换HY催化剂，在0.16%的反应系统没有，0.08%C2H2，和9.95%O2(卷百分比)在他。到有烃效率的N2的75%没有变换大约1.5在300附近在Ce-HY催化剂上被完成??慍楤摮汯湩獥？？

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简介：Thispaperdiscussestheconversionofnitricoxide(NO)withalow-temperatureplasmainducedbyacatalyticpacked-beddielectricbarrierdischarge(DBD)reactor.Aluminaoxide(Al_2O_3),glass(SiO_2)andzirconiumoxide(ZrO_2),threedifferentsphericalpackedmaterialsofthesamesize,wereeachpresentintheDBDreactor.TheNOconversionundervaryinginputvoltageandspecificenergydensity,andtheeffectsofcatalysts(titaniumdioxide(TiO_2)andmanganeseoxide(MnOx)coatedonAl_2O_3)onNOconversionwereinvestigated.TheexperimentalresultsshowedthatNOconversionwasgreatlyenhancedinthepresenceofpackedmaterialsinthereactor,andthecatalyticpackedbedofMnOx/Al_2O_3showedbetterperformancethanthatofTiO_2/Al_2O_3.Thesurfaceandcrystalstructuresofthematerialsandcatalystswerecharacterizedthroughscanningelectronmicroscopyanalysis.ThefinalproductswereclearlyobservedbyaFouriertransforminfraredspectrometerandprovidedabetterunderstandingofNOconversion.

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简介：Theneedformoreactiveandhydrothermallystablefluidcatalyticcracking(FCC)catalyststocombattheeffectofmetalcontaminantshasledtoanincreaseindemandforrareearthoxides.RareearthoxidesenhancecatalystactivityandpreventthelossofacidsitesduringtheFCCunitoperation,especiallywhenheavyresiduewithhighmetalcontentisusedasfeed.Inthispaper,areviewwascarriedouttoshowtheeffectsofrareearthelementsonthestructure,activity,andstabilityofFCCcatalysts.Also,theuseofrareearthelementsasvanadiumtrapswasanalyzedinconjunctionwiththemechanismofcatalystdeactivationbyvanadium.TheobjectivewastoelucidatetheinteractionofvanadiumspecieswiththezeolitecomponentoftheFCCcatalystsandtheroleofrareearthelementsincounteringthedeleteriouseffectsofvanadiumontheFCCcatalysts.

简介：AUltrafineamorphousNiBalloywaspreparedviachemicalreductionmethod;ItsstructuresduringthecrystallizatioinprecesswascharacterizedbysuchtechniquesasDifferentialthermalanalysis(DTA),X-rayabsorptionfinestructure(XAFS)andX-raydiffraction(XRD),andcorrelatedtothecatalyticpropertiesforbenzenehydrogenation.ItwasfoundthatthecrystallizationofamorphousNiBalloywascarriedoutintwosteps,asindicatedbytwoexothermicpeakscenteredat598and652Krespectively.Duringthefirststep.twometastablecrystallinephases,i.e.,Ni3BandanoaocrstallineNiphase(Ni-richNiBalloy),wereformed.Furtherannealingathighertemperatureof652KmayresultinthedecompositionofcrystallineNi3BandaggregationofnanocrystallineNi,thebenzenehydrogenationisoptimizedaroundtheannealingtemperatureof623K.ItmostprobablyresultsfromthemaximumamountofactivesiteonnanocrystallineNiformedbythermaltreatmentatappropriateannealingtemperature.

简介：Depositionoftwo-dimensional（2D）MoS2materialsonthetaperedfiberallowsvariousphotonicapplicationsincludingsaturableabsorbersandfour-wavemixing.Ethanolcatalyticdeposition（ECD）ofMoS2ontheopticaltaperedfiberwasproposedanddemonstratedinthiswork.Differentfromtheconventionalopticaldrivendepositionusingwaterororganicsolvent,theECDmethodutilizedthehighvolatilityoftheethanolsolvent,whichsignificantlyincreasedthemovementspeedoftheMoS2nanosheetsandthusboostedthedepositionrateandreducedtheminimumpowerthresholdtodrivethedeposition.WebelievetheECDmethodshouldbeabletobeappliedtoothersimilar2Dmaterialssuchasothertypesoftransitionmetalchalcogenides.

简介：IntroductionReductivedesulfurizationofthioamidestoaminesisoneofthemethodstoprepareaminesandisgenerallyachievedbya)Zninacid,b)sodiumoraluminumamal-gams,c)lithiumalumminiumhydride,d)RaneyNiande)electrolyticreduction.Thesemethodsarenotveryconvenienttobeoperatedandsomeneedmorecomplexinstrument.Hereisreportedthereductivedesulfurizationofthioamidestoaminesbycatalytichydrogentransferreaction(CHT).

简介：研究了一些锂基氧化物对异丁烷的催化氧化脱氢作用，其中Ｌｉ２ＳｎＯ３显示出优良的催化性质，Ｌｉ２ＭｎＯ３，ＬｉＦｅ５Ｏ８和ＬｉＡｌ５Ｏ８对异丁烯的选择性较差，而Ｌｉ２ＣｅＯ３，ＬｉＦｅＯ２和ＬｉＺｎＯ２在反应条件下不稳定。系列ＬｉＳｎＯ催化剂的ＣＯ２ＴＰＤ分析表明，当ＳｎＯ２转化为Ｌｉ２ＳｎＯ３时，在表面形成了碱中心，它有利于异丁烯从催化剂表面脱附。Ｏ２ＴＰＤ和Ｈ２ＴＰＤ结果表明，此时吸附的氧物种数量降低，异丁烯的深度氧化受到抑制。Ｌｉ２ＳｎＯ３中晶格氧物种的活性对异丁烷催化氧化脱氢可能是适宜的，但不利于深度氧化。