Nickel;samarium | 12201-95-5

• 分子结构分类: 无机化合物 - 均相金属化合物 - 金属间过渡金属化合物
• 英文名称: Nickel;samarium
• 英文别名: nickel;samarium
• CAS: 12201-95-5
• 化学式: Ni₂Sm
• 分子量: 267.74
• InChiKey: KZBHFLGZSFHHGS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.01
• 重原子数：
  3
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  Nickel;samarium 在 LiCl 、 KCl 、 SmCl₃ 作用下， 以 melt 、 neat (no solvent, solid phase) 为溶剂， 生成 Nickel;samarium
  参考文献：
  名称：

  Electrochemical formation of Sm–Ni alloy films in a molten LiCl–KCl–SmCl3 system

  摘要：

  The electrochemical formation of Sm-Ni alloys was investigated in a molten LiCl-KCl-SmCl3 (0.5 mol%) system at 723 K. The cyclic voltammogram for a Mo electrode showed the reduction wave from Sm(III) to Sm(II) at 1.60 V (vs Li+/Li), but no reduction wave from Sm(II) to Sm metal. For a Ni electrode, small cathodic currents were observed at potentials more negative than 0.10 V, which indicated the formation of Sm-Ni alloy. The formation of an SmNi2 phase was confirmed by XRD analysis of a sample prepared at 0.10 V for 72 h. The thickness of the SmNi2 film was estimated to be approximately 100 nm. A much thicker SmNi2 film (similar to 20 mum) was obtained by cathodic galvanostatic electrolysis at 50 mA cm(-2) in a time period as short as 1 h. Since Li metal was codepositing during the electrolysis and the SmNi2 film was rapidly formed, this electrochemical formation method was termed the 'Li codeposition method'. The formed SmNi2 film was changed to other alloy phases by anodic potentiostatic electrolysis. The formation potentials of SmNi5, SmNi3 and SmNi2 were found to be 1.20, 0.65 and 0.29 V, respectively. (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0013-4686(01)00470-4
• 作为产物：
  描述：

  氯化钐 、 镍 以 melt 为溶剂， 生成 Nickel;samarium
  参考文献：
  名称：

  RBS analysis of Sm–Ni alloy films prepared by molten salt electrochemical process

  摘要：

  The Sm-Ni alloy films were prepared on an Ni electrode by two different electrochemical methods in a molten LiCl-KCI-SmCl3 (0.5 mol%) system at 723 K. The composition and the film thickness of the Sm-Ni alloy films were studied by Rutherford backscattering spectrometry (RBS). SmNi2 was rapidly and uniformly formed by Li codeposition method. In the initial period. the film growth is linear to time. where the supply of Sin seems to be the rate control process. Though the rate control process is thought to change to the diffusion of elements in the film during the film growth, formation of SmNi, progresses as the electrolysis time increases. On the other hand. it was indicated that the (SmNi2 + Ni) film was formed by electrolysis at 0.10 V. The growth rate is proportional to the square root of time in the initial period., however. the growth hardly progresses after 5 min. (C) 2004 Elsevier B.V. All rights reserved,

  DOI：

  10.1016/j.jallcom.2004.04.153

文献信息

• The isothermal section phase diagram of the Sm-Fe-Ni ternary system at 800 °C
  作者：K. Nouri、M. Jemmali、S. Walha、K. Zehani、L. Bessais、A. Ben Salah

  DOI：10.1016/j.jallcom.2015.11.116

  日期：2016.3

  Abstract Isothermal section at 800 °C of the ternary Sm-Fe-Ni system was established in the whole concentration range, by means of powder X-ray diffraction and scanning electron microscopyenergy dispersive X-ray spectroscopy (SEM/EDS). All measured compositions and unit-cell refinements were performed at room temperature from quenched samples annealed at 800 °C for one week. Ten binary compounds and

  摘要 利用粉末X射线衍射和扫描电子显微镜能量色散X射线光谱(SEM/EDS)建立了全浓度范围内Sm-Fe-Ni三元体系800 °C等温截面。所有测量的成分和晶胞精修均在室温下从在 800°C 下退火一周的淬火样品进行。已确认十种二元化合物和α(Fe1-x Nix)（Im-3m-W 型结构）。发现 SmNi5-xFex（P6/mmm-CaCu5 型结构）的溶解度范围为 0 至 50 at% Fe。Fe 在 Sm2Ni7-xFex（P63/mmc-Ce2Ni7 型结构）、SmNi3-xFex（R 3 ¯ m -PuNi3 型结构）和 SmNi2-xFex（Fd-3m-MgCu2 型结构）中在 800 °C 下的最大溶解度为分别约为 2.7 at% Fe、40 at% Fe 和 6.66 at% Fe。Sm2Fe17−xNix（R 3 ¯ m -Th2 Zn17 型结构）的同质域范围为 0 到 21
• Magnesium effect on hydrogen-induced amorphization of Sm 2−x Mg x Ni 4 compounds
  作者：Q.A. Zhang、D.Q. Yang

  DOI：10.1016/j.jallcom.2017.04.033

  日期：2017.7

  Abstract The magnesium effect on hydrogen-induced amorphization (HIA) of Sm 2− x Mg x Ni 4 compounds is investigated in this work. It is found that the HIA phenomenon occurs in the compounds with x = 0, 0.25 and 0.5. The amorphous hydrides do not desorb hydrogen at 298 K. However, the pseudo-binary Sm 1.25 Mg 0.75 Ni 4 compound can reversibly absorb and desorb hydrogen without the occurrence of HIA

  摘要 本工作研究了镁对Sm 2− x Mg x Ni 4 化合物氢致非晶化(HIA) 的影响。发现在 x = 0、0.25 和 0.5 的化合物中会发生 HIA 现象。无定形氢化物在 298 K 下不解吸氢。然而，伪二元 Sm 1.25 Mg 0.75 Ni 4 化合物在 298 K 吸氢和解吸循环过程中可以可逆地吸收和解吸氢而不会发生 HIA。因此，建议伪二元 AB 2 化合物的 HIA 的临界 RA / RB 比值应移至略高于二元 AB 2 化合物中发生 HIA 的经验值 1.37 的值。
• Shilov, A. L., Russian Journal of Inorganic Chemistry, 1991, vol. 36, p. 1256 - 1261
  作者：Shilov, A. L.

  DOI：——

  日期：——
• Kost, M. E.; Raevskaya, M. V.; Shilov, A. L., Russian Journal of Inorganic Chemistry, 1979, vol. 24, p. 1803 - 1805
  作者：Kost, M. E.、Raevskaya, M. V.、Shilov, A. L.、Yaropolova, E. I.、Mikheeva, V. I.

  DOI：——

  日期：——
• Thermodynamic investigation of samarium–nickel alloys
  作者：G. Borzone、N. Parodi、R. Raggio、R. Ferro

  DOI：10.1016/s0925-8388(00)01382-7

  日期：2001.4

  The enthalpies of formation of thr Sm-Ni solid alloys at 300 K were determined by direct calorimetry using two different calorimetric apparatus, The characterization of the samples was performed using metallographic and X-ray. diffraction analyses. The values of Delta H-f degrees (kJ/mol of atoms) for the following compounds were obtained for the formation in the solid state at 300 ii: Sm,Ni: -21.5 +/-2; SmNi: -33.0 +/-1; SmNi2: -36.0 +/-1. The results are discussed and compared with those of other similar rare earth-nickel compounds, (C) 2001 Elsevier Science B,V, All rights reserved.