valence stability 价态稳定(3) 价态稳定性(3)   价态稳定      A new phenomemon of energy transfer from Eu2 +to Tb3 +in KCa F3 was observed. Valence stability of Eu2 +in KCa F3 is considered by susceptibility method and spectral analysis. The results show that though valence of Eu2 +in KCa F3 is stable,Eu2 +ions easily change into Eu3 +in KCa F3 in the presence of minimal water.      本文报道 KCa F3 基质中 Eu2 +的光谱特征及浓度对 Eu2 +发光的影响并观察到 Eu2 +对 Tb3 +产生能量传递的新现象 ,详细讨论 Eu2 +在基质中的价态稳定及其转换。 短句来源      LUMINESCENCE PROPERTIES AND VALENCE STABILITY OF EUROPIUM(Ⅱ) IN KCa F_3      KCaF_3中Eu~(2+)的光谱性质和价态稳定 短句来源      Valence Stability and Change of Eu (Ⅱ)in Oxides      氧化物体系中Eu~(2+)的价态稳定和转换 短句来源   价态稳定性      SPECTRAL STRUCTURE AND VALENCE STABILITY OF EUROPIUM (Ⅱ) IN SYSTEMS ARF_4 (A=Na, K; R = La,Gd,Lu and Y)      ARF_4(A=Na,K;R=La,Gd,Y,Lu)中Eu~(2+)的光谱结构及其价态稳定性 短句来源      to industrial catalyst C207, was higher than that of C207 catalyst, and that the surface of functioning NC208 catalyst had higher Cu+/Cu0 ratio and valence stability than that of C207. These pecullarities have close a relation with more persistent activity and higher thermal stability than modified NC208 catalyst.      NC208催化剂能维持工作表面具有较大的Cu＋／Cu0比，即维持较高的Cu＋价态稳定性，这与该催化剂的活性和热稳定性明显优于C207有着密切联系． 短句来源      Spectrum and Valence Stability of Low-valent Rare-earth Rons in Fluoride Crystals      氟化物晶体中低价稀土离子光谱结构及其价态稳定性 短句来源   “valence stability”译为未确定词的双语例句      5) In fluorescent materials YOX(X=F,Cl,Br) doped with europium ions, the long afterglow phenomenon wasn't observed but the blue luminescence of Eu2+ and red luminescence of Eu3+ are simultaneously examined. This is a new result of the valence stability and change of Eu2+ in yttrium oxyhalide . We systematically studied the effects of the host, addition agents and reaction atmosphere on the valence change and fluorescence property of europium ions.      5)在YOX(X=F、Cl、Br)中同时观察到Eu~(2+)和Eu~(3+)的发射，系统研究了基质、添加剂及反应气氛对Eu价态和发光的影响。 短句来源 查询“valence stability”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   valence stability The results showed that LSGFO had much higher thermochemical stability than LSCFO due to the higher valence stability of Ga3+. 例句来源                A study was made on the spectral structure characterization and valence stability of Eu2+ ions in ARF4 (A = Na, K; R = La, Gd, Lu and Y) , one of complex fluorides useful as multifunctional materials.Alkali metal ions have the lowest ionizing potential and highest positive electricity and stronger ionic bond is formed easily in its compounds.The Eu2+ ion probably is given priority to occupy a alkali ionic lattice site in the complex fluorides synthesized by alkali and rare earth fluorides becaus...             Eu~(2+)在ARF_4(A=Na,K;R=La,Gd,Y,Lu)中的荧光光谱结构是由特征的d→f跃迁宽带发射和f→f跃迁尖峰发射组成,低温下线/带强度比明显增强;高纯氩气流中合成的样品,Eu~(2+)的价态是稳定的。 文摘来源          By means of TPD,TPO and TPR methods,a comparative study of a modi-fied copper- based cactalyst XNC2 08 with an industrial catalyst C207 for methanol synthesisshowed that the surface concentration of Cu￣+-site on functioning XNC2 08 catalyst was higherthan that of C207 catalyst,and that these Cu￣+-sites had higher valence stability, thus demon-strating better performance of resistance to both being oxidized and deeply reduced, and that,under reaction conditions of methanol synthesis,stationary co...             采用ＴＰＤ、ＴＰＯ和ＴＰＲ等方法对比研究了改进铜基甲醇合成催化剂ＸＮＣ２０８和工业催化剂Ｃ２０７．结果表明，改进的ＸＮＣ２０８催化剂工作表面Ｃｕ￣＋活性位的浓度比未经改进工业催化剂Ｃ２０７高；在甲醇合成实际操作温度下，催化剂工作表面可以维持较高的、对甲醇合成反应能作出贡献的吸附氢和吸附ＣＯ等表面反应物种的稳态浓度，从而有利于甲醇合成速率的提高；改进的ＸＮＣ２０８催化剂工作表面的Ｃｕ￣＋位具有较大的价态稳定性，显示出较强的抗深度还原和抗氧化的双重性能，这与该催化剂具有持久的低温活性和高的热稳定性有着密切的联系。 文摘来源          L uminescence propertiesof Eu2 +and effectofdoped concentration on luminescenceof Eu2 + are reported. A new phenomemon of energy transfer from Eu2 +to Tb3 +in KCa F3 was observed. Valence stability of Eu2 +in KCa F3 is considered by susceptibility method and spectral analysis. The results show that though valence of Eu2 +in KCa F3 is stable,Eu2 +ions easily change into Eu3 +in KCa F3 in the presence of minimal water.             本文报道 KCa F3 基质中 Eu2 +的光谱特征及浓度对 Eu2 +发光的影响并观察到 Eu2 +对 Tb3 +产生能量传递的新现象 ,详细讨论 Eu2 +在基质中的价态稳定及其转换。 文摘来源   << 更多相关文摘         相关查询: valence state stability valence ) stability (stability) stability ． stability [ stability ] (valence reservoir stability immunological valence derailment stability lacks stability  对查询结果不满意

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