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  • 简介:Thepurposeofthisresearchistoinvestigatethepotentialofpre-treatmentwithphosphoricacid(PA)andmonobasiccalciumphosphate(MCP)forthestabilizationofheavymetalsinsludgeanditsbottomash.ThetannerysludgesampleswerecollectedinWenzhou,Chinaandheavilycontaminatedwithheavymetals,suchasPb,Crandsoon.Thesampleswerepre-treatedwithPAorMCP.ThenXRDandTCLPtestswereadoptedastheevaluatingmethodstocharacterizethePb,Cr,Cu,ZnandCdimmobilizationinthepre-treatedsludgeanditsbottomash.TheresultsshowedthatthistreatmenteffectivelyimmobilizedPbandCdinthesludge,lightlystabilizedthemetalCu,andadversely,enhancedtheleachabilityofZn.Afterincinerationat900℃,PbandCrinthebottomashofpre-treatedsludgeweresignificantlystabilizedduetotheformationoftheirhighlythermostablephosphatesandpyromorphite-likemineralsduringtheincinerationprocess.However,anincreaseofCuandZnsolubilitywasobservedwhichmightbeattributabletotheacidificationofsludgeduetotheadditionofPAorMCP.

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  • 简介:我们理论上调查通过置闰在转变金属dichalcogenidebilayers完成一个超导的国家的可能性,一个过程以前并且广泛地过去常在新奇超导体完成metallization和超导的国家。为设置Ca的bilayers瞬间2和WS2,,我们发现超导的国家被分别地联合比1.0大的常数和13.3和9.3K的超导的批评温度的电子声子描绘。这些结果比预言或试验性地观察了二维的常规超导体的其它优异并且建议调查材料可以是nanoscale超导体的好候选人。更有趣地,我们证明获得的热力学的性质超出吝啬地的Bardeen-Cooper-Schrieffer近似的预言并且在强壮联合的Eliashberg理论的框架以内进行的计算应该被当作产出量的结果的那些。

  • 标签: 超导性 金属 调查材料 超导体 状态