简介：第一原则的计算被执行学习有TiC的形态学的硼和它的关系的吸附。尽管所有低索引的TiC水晶飞机上的硼的吸附是热地有利的，它将更容易被吸附由，这被发现终止C{111}并且{011}飞机，当时不太可能被吸附由{001}。B-B簇的形成的学习显示硼adatoms在上的分发终止C(111)并且{011}飞机将是更一致的，并且adatom的散开进一步证实上述结果。根据几何学关系和不同水晶飞机的生长率，TiC上的硼的吸附将严重阻碍生长，这被推出{111}并且{011}飞机，它能让TiC长成六角形的血小板。

简介：Thegrainsizecontrolofthetungstenpowderisessentialforhighqualitytungstenproductsmaking.Basedonthestudiesonthehydrogenreductionprocessoftungstenoxide,amicrocomputersystemisintroducedtothereductionprocessparameterscon-trol.Themicrocomputerprocesscontrolsystem,whichisnowrunninginZhuzhouTungstenandMolybdenumMaterialsPlant,controlstheprocessparametersincludingthetemperatureofthereductionfurnaceandthepressureofhydrogen.Italsocontrolsamechanicalpusherwhichpushstheboatschargedwithbluetungstenoxideintothefurnacetubes.Someofthetechniqueprob-lemsappearedinthereductionprocessandtheprocesscontrolareanalysedinthispaper.Theresultoftheexperimentisalsogiven.

简介：Inthepresenceofmixedmicelleofacationicandanonionicsurfactants,thereactionofscandium（Ⅲ）withphenylfluoroneoritsderivativesresultsinaverysensitivecolouration:furthermorethischromophoricsystemtoleratestheexistenceofaconsiderableamountofmaskingagents,sothatmanyinterferingionscanbemaskedanditsselectivitywouldbefurtherimproved.Afterstudyingtheoptimumconditionsandmaincharac-tersofsomesimilarsystems,thesystemofSc（Ⅲ）—Orthonitrophenyuorone—CetyltrimethylammoniumBromide（CTMAB）—TritonX-200ischosenforthespectrophotometricdeterminationofmicroamountofscandium.Theproposedmethodshowsnotonlyhighsensitivity(withamolarabsorptivityof2.12×1sLmol-1·cm-1)andselectivity,butalsohightoleranceofchromophoricconditions.Beer’slawisobeyedoverarangeof0～6.0μgSc/25ml.Ifthedual-wavelengthmethodisapplied,amuchhighermolarabsorptivityo|"3.04×105L·mol-1·cm-1thanthoseofothersystemseverreportedintheliteraturescanbeattained:more-over.itslinearrangeisextendedto0～8.0μgSc/25mlanditsreproducibilityisalsoimproved.

简介：Thebinarycomplexesofeuropiumwithbenzoicacidanditsderivatives(phthalicacid,m-phthalicacid,o-aminobenzoicacid,salicylicacid,andsulfosalicylicacid)weresynthesizedandtheircompositionswereidentifiedbyelementalanalyses.UVandIRofthecomplexeshavebeeninvestigated.TheUVspectraindicatedthatthecomplexes'ultravioletabsorptionweremainlytheligands'absorption.TheIRspectrashowedthattheIRspectraofcomplexesaredifferentfromthoseoffreeligands.Thefluorescencepropertiesofthemwereinvestigatedbyusingluminescencespectroscopy,theresultsshowedthatonlythreecomplexesappearasbetterluminescence,theywereEu-benzoicacid,Eu-m-phthalicacidandEu-phthalicacid,whiletheothersexhibitedtheligands'widebandemission.

简介：Recoveryprocessesofsecondaryresourcesusuallyencounterproblemsbecauseofthediversecompositionsofwastes.Toenhancetheapplicabilityoftraditionalhydrometallurgicalprocesstowardsecondaryresources,theadjustmentofcomponentsisnecessary.Intraditionalhydrometallurgicalseparation,precipitationandcomplexationareextensivelyused.However,theircombinationasaspecificmetalseparationmethodhasnotyetbeenstudiedindetail.Thisapproachisverypromisingforsolvingproblemscausedbychangeablecomponentsduringrecyclingprocessesofsecondaryresources.Thispaperreviewstheeffectsofprecipitationandcomplexationinmetalseparationprocesses,andametalseparationmethodsystemof‘‘complexation–precipitation’’developedtoadjustthecomponentsofsecondaryresourcesisintroduced.

简介：AmorphousNi–PcoatingwasplatedonAZ31magnesiumalloyviatheelectrolessplatingtechnique,andtheplatedalloywassubsequentlyannealed.X-raydiffraction(XRD),scanningelectronmicroscopy(SEM),energydispersivespectroscopy(EDS),anddifferentialscanningcalorimetry(DSC)wereusedtocharacterizethecoating.Theresultsshowthatthehardnessofthecoatingismuchhigherthanthatofbaremagnesiumalloy,whichfurtherincreasesaftercrystallization.Theelectrochemicalpolarizationandsaltspraytestsshowthatthecoatingexhibitsamuchhighercorrosionresistancethanthatofthebaremagnesiumalloy.Moreover,thecrystallizedcoatingstillexhibitsamuchstrongercorrosionresistancethanthatofthebaremagnesiumalloy,althoughitscorrosionresistanceislowerthanthatoftheas-platedone.

简介：Ｘ－ｒａｙＤｏｕｂｌｅ－ｃｒｙｓｔａｌＤｉｆｆｒａｃｔｏｍｅｔｅｒｗｉｔｈＨｏｒｉｚｏｎｔａｌＳｌｉｔｓａｎｄＩｔｓＡｐｐｌｉｃａｔｉｏｎｓＸｕＪｉｎｇｙａｎｇａｎｄＺｈｕＮａｎｃｈａｎｇ徐景阳，朱南昌（ＳｈａｎｇｈａｉＩｎｓｔｉｔｕｌｅｏｆＭｅｔａ...

简介：为从海水的锂离子恢复过程的开发，一系列试验性的研究被执行。从把煤油用作溶剂的水的答案的锂离子的溶剂抽取被建议。锂离子被thenoyltrifluoroacetone-trioctylphosphine氧化物(TTA-TOPO)有效地在80以内在煤油提取?min。抽取效率被stoichiometric参数严重地影响。在stoichiometric参数之中，到抽取(E)答案的水的(A)的卷比率是最有影响的参数。在抽取以后，锂离子能被酸的答案容易从抽取答案剥去。有酸的溶液的pH的脱衣的效率减少，和酸的类型不影响脱衣的效率。抽取效率在超过93点维持?%甚至当抽取答案被再循环三次时。当镁离子被NH4在溶剂抽取以前的OH过程。在海水的另外的金属性的离子减少锂的抽取效率离子。

简介：Nb-bearingslagfromBaotouhotmetalwaschlorinatedinthesolidstatewithmoltenCaCl2undervacuum,96～98%MnOorFeObeingthusvolatilized.Byreducingthechloridizedresidueunderadditionofflux,ferroniobiumwithabout60%Nbwassuccessfullymade.KineticstudyofchlorinationofsyntheticMnO-Nb2O5-SiO2andFeO-Nb2O5-SiO2slagsystemswasconducted,andanon-reactingcoremodelforthedemanganificationwithfreeuseofactivitywasformulatedandtherate-controllingstepwasexplained.

简介：减小烤，钠硫酸盐由磁性的分离列在后面被调查与54.90的全部的铁等级利用钒跟踪?17.40的wt%和TiO2内容?wt%。结果在减小以后显示出那有2的钠硫酸盐剂量的烤磁性的分离?在烤1150的温度的wt%?祴戠瑥敷湥爠汯敬?湡?汥'虪箵礊碘船摀拥剖?潦汩s

简介：nano石墨表/氧化铝composites被一个灵巧的受精减小过程在situ准备。composites的微观结构被X光检查衍射(XRD)分析，并且在减小以后的最后的阶段作文是艾尔2O3,金属Fe和石墨水晶。扫描电子显微镜学(SEM)图象证明Fe的粒子尺寸是大约20?nm，和石墨的lamellae厚度是大约30?nm。然后，绝缘的性质和composites的传导性的机制在0.01-1.00的频率范围试验性地被调查?由阻抗分析器的GHz。composites的介电常数的真实部分与Fe3+集中增加的结果表演，由于在Fe和艾尔23和薄片状的石墨形成的三维的网络。因此，悦耳的microtopography和nano石墨表/氧化铝composites的电的参数能被改变Fe3+集中认识到。

简介：基于AB_5的氢存储薄电影(LaNi_(4.25)Al_(0.75))，由dc磁控管劈啪作响的扔的onCu底层在这研究被调查。X光检查衍射(XRD)表明层的微观结构在晶形。SEM和AFM分析证明这部电影看起来与近似在nmdiameter的15-40的众多的随机大小的毛孔相当不平。这部电影的结构的稳定性被DSC，XRD，andS他们，它显示这部电影在500K左右下面维持了它的结构的稳定性，和网络结构的联合分析检验在为30min在700K被加热以后在这部电影上被观察。这些电影的Electrochemicalhydrogen存储性质被模仿的电池测试调查。单人赛分层的LaNi_(4.25)Al_(0.75)大批拍摄类似于典型AB_5合金的展出电气化学的氢存储性质，这被发现，并且这部电影的最大的分泌物能力关于220mAh/g。在20个控告/解除周期以后，小塑造针的铝氧化物在电影表面的一些部分上被形成。

简介：Withtheassistanceofnonionicsurfactant(OP-10)andsurface-selectivesurfactant(CH3COOH),anataseTiO2waspreparedasananodematerialforlithiumionbatteries.Themorphology,thecrystalstructure,andtheelectrochemicalpropertiesofthepreparedanataseTiO2werecharacterizedbyscanningelectronmicroscopy(SEM),X-raydiffraction(XRD),electrochemicalimpedancespectroscopy(EIS),andgalvanostaticchargeanddischargetest.TheresultshowsthatthepreparedanataseTiO2hashighdischargecapacityandgoodcyclicstability.Themaximumdischargecapacityis313mAh·g-1,andthereisnosignificantcapacitydecayfromthesecondcycle.