学科分类
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3 个结果
  • 简介:TheintermetalliccompoundZr1-xTixCowaspreparedanditssuitabilityforhydrogenstoragewasinvestigated.ThealloysobtainedbymagneticlevitationmeltingwiththecompositionofZr1-xTixCo(x=0,0.1,0.2and0.3,at.%)showsinglecubicphasebyX-raydiffraction.Asingleslopingplateauwasobservedoneachisothermal,andpressure-composition-temperature(PCT)measurementresultsshowthattheequilibriumhydrogendesorptionpressureofZr1-xTixCoalloyincreaseswithincreasingTicontent.Thedesorptiontemperaturesforsupplying100kPahydrogenareabout665,642,621and614KforZrCo,Zr0.9Ti0.1Co,Zr0.8Ti0.2CoandZr0.7Ti0.3Coalloy,respectively.RepeatedhydrogenabsorptionanddesorptioncyclesdonotgenerateseparatedZrCo,TiCoandZrH2phases,indicatingthatalloyshavegoodthermalandhydrogenstabilization.

  • 标签: HYDROGEN storage alloy ZrCo INTERMETALLIC COMPOUND
  • 简介:Thestructure,CurietemperatureandmagnetostrictionofPr0.15Tb0.30Dy0.55Fe1.85Cx(x=0-0.1)compoundswereinvestigatedbyX-raydiffraction,avibratingsamplemagnetometerandastandardstraintechnique.AllthesamplesshowentirelyMgCu2-typeLavesphasestructure.ThelatticeparameterandCurietemperatureincreasewithCcontentincreasing.Themagnetostrictionathighmagneticfieldshowsmaximumvalueatx=0.05.

  • 标签: MAGNETOSTRICTION Pr0.15Tb0.3Dy0.55Fe1.85 Laves PHASE
  • 简介:基于镍的复合的层被阳极化在五分钱板上准备在一75?wt%H3PO4答案包含NH4F。这层然后被galvanostatic控告/解除(GCD)对待直到黑外部层被分开,留下象为supercapacitors的没有文件夹的电极材料的镍板上的一部电影。这部电影由Ni组成的微结构描述表演(哦)2和NiO,和没有氟化物在同样获得的电影被发现。电气化学的测试证明这个没有氟化物的电影电极展出954的一个高电容?F圆形的二色性(CD)系列和polyacrylamide胶化电气泳动(页)。当聚合物支架和金属建筑群作为催化活跃中心工作了,BSA服务了。当到BSA的转变金属离子建筑群的有约束力的比率是5:1时,结果证明BSA的结构仍然保持未改变。而且,清除superoxide一??

  • 标签: 超级电容器 电化学制备 复合膜 镍板 无氟 镍基