Cerium;nickel | 12185-86-3

• 分子结构分类: 无机化合物 - 均相金属化合物 - 金属间镧系化合物
• 英文名称: Cerium;nickel
• 英文别名: cerium;nickel
• CAS: 12185-86-3
• 化学式: CeNi₂
• 分子量: 257.5
• InChiKey: OQWJZXRMZKKSHZ-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：

  Cerium;nickel 、 氨 以 neat (no solvent) 为溶剂， 生成
  参考文献：
  名称：

  Shilkin, S. P.; Volkova, L. S., Russian Journal of Inorganic Chemistry, 1992, vol. 37, p. 1247 - 1250

  摘要：

  DOI：
• 作为产物：
  描述：

  铈,镍(1:5) 、 cerium dihydride 以 neat (no solvent, solid phase) 为溶剂， 生成 Cerium;nickel
  参考文献：
  名称：

  Kim, Yong-Gyoo; Lee, Sung-Man; Lee, Jai-Young, Journal of the Less-Common Metals, 1991, vol. 169, p. 245 - 256

  摘要：

  DOI：

文献信息

• Chemical methods of dispergation of metallic phases
  作者：B. P. Tarasov、E. E. Fokina、V. N. Fokin

  DOI：10.1007/s11172-011-0193-9

  日期：2011.7

  The results of a cycle of works on the chemical dispergation of intermetallic compounds and alloys were summarized and analyzed. The chemical dispergation occurs in a hydrogen or ammonia atmosphere in the temperature range from 20 to 500 °C and a pressure of 0.5–2.0 MPa. The phase transformations were studied. The conditions suitable for the production of polymetallic phase powders of various degrees of dispersity were determined.

  对一系列关于金属间化合物和合金化学分散处理的研究结果进行了总结和分析。化学分散过程在20至500摄氏度、0.5至2.0兆帕的压力下，在氢气或氨气氛围中进行。研究了相变过程，并确定了适合制备各种分散度多金属相粉末的条件。
• Valency compensation in the Laves system, Ce(Co1?x Ni x )2
  作者：J. M. Da C. Brochado Oliveira、I. R. Harris

  DOI：10.1007/bf00540737

  日期：1983.12

  the similar system Zr(Co1−xNix)2 in which zirconium is regarded as a stable tetravalent element. A limit in the stability of the Laves phase in the Zr(Co1−xNix)2 system has been found at x−0.76 (∼ 51at% Ni); this behaviour is interpreted in terms of the electron concentration reaching a maximum value for the stability of the cubic Laves phase structure in these alloys. The Laves phases in the Ce(Co1−xNix)2

  已经通过磁化率测量和室温 X 射线衍射研究了伪二元系统 Ce (Co1−xNix)2（以及作为比较的 Zr(Co1−xNix)2）, 0⩽x⩽1.0。实验数据表明，Ce(Co1-xNix)2 合金中铈的电子态随成分的变化而变化，并且在与类似系统 Zr(Co1-xNix)2 比较的基础上解释了该行为其中锆被认为是一种稳定的四价元素。已发现 Zr(Co1-xNix)2 系统中 Laves 相稳定性的极限值是 x-0.76（约 51at% Ni）；这种行为被解释为电子浓度达到这些合金中立方 Laves 相结构稳定性的最大值。Ce(Co1−xNix)2 合金体系中的 Laves 相形成完全固溶体；这种行为被解释为结构的稳定性在整个组成范围内通过随着钴原子被镍取代而改变铈原子的有效价态而保持，即“价态补偿”效应。通过与 Zr(Co1-xNix)2 合金的晶格参数的比较，可以确定 CeNi2 相中铈的有效价数的近似值为
• Vacancy induced anomalies in the Laves phase CeNi 2
  作者：T.C. Shields、J. Mayers、I.R. Harris

  DOI：10.1016/0304-8853(87)90674-3

  日期：1987.1

  Abstract For the cubic Laves phase CeNi 2 , pronounced anomalies have been observed in the lattice spacings and micro-hardness values with quenching from elevated temperatures and in the high temperature thermal expansion behaviour. All these effects have been attributed to the production of a high concentration of vacancies at high temperatures. A low vacancy formation energy is indicated by the temperature

  摘要 对于立方 Laves 相 CeNi 2 ，在高温淬火和高温热膨胀行为中观察到晶格间距和显微硬度值明显异常。所有这些影响都归因于在高温下产生高浓度的空位。空位浓度的温度依赖性表明低空位形成能。空位被认为与铈原子的可变价态以及立方拉夫斯相的临界电子浓度有关。
• Hydrogen absorption–desorption in CeNi2
  作者：M. Di Chio、S. Livraghi、M. Baricco

  DOI：10.1016/j.jallcom.2006.02.041

  日期：2006.12

  Abstract Hydrogen absorption and desorption properties of CeNi2 compound are presented. Hydrogen absorption leads to the formation of CeH3 and CeNi2Hx, with a variation of the cell parameter of the compound from a = 7.201 A to 7.093 A. The hydrogen content in the compound is around 0.5 H/M under a hydrogen pressure of 0.03 MPa at 475 K. The enthalpy of CeNi2 hydride formation was measured to be − 25

  摘要 介绍了CeNi2化合物的吸氢和解吸性能。吸氢导致形成 CeH3 和 Hx，化合物的电池参数从 a = 7.201 A 变化到 7.093 A。 在 0.03 MPa 的氢气压力下，化合物中的氢含量约为 0.5 H/M 475 K。通过热分析测得 氢化物形成的焓为- 25 kJ mol H - 1。根据热解吸分析，从 氢化物解吸氢的活化能估计为约 50 kJ/mol。通过 Miedema 模型对 结构中氢吸收的半经验描述确定了四面体位点中氢的位置。
• The Ce-Ni-Si system as a representative of the rare earth-Ni-Si family: Isothermal section and new rare-earth nickel silicides
  作者：A.V. Morozkin、A.V. Knotko、A.V. Garshev、V.O. Yapaskurt、R. Nirmala、S. Quezado、S.K. Malik

  DOI：10.1016/j.jssc.2016.09.001

  日期：2016.11

  The Ce-Ni-Si system has been investigated at 870/1070 K by X-ray and microprobe analyses. The existence of the known compounds, i.e.: Ce2Ni15.8Si1.2 (Th2Ni17-type), Ce2Ni15-14Si2-3 (Th2Zn17-type), CeNi(8.6)Si(2.)4 (BaCd11-type), CeNi8.8Si4.2 (LaCo9Si4-type), CeNi6Si6 (CeNi6Si6-type), CeNi5Si1-0.3 (TbCu7-type), CeNi4Si (YNi4Si-type), CeNi2Si2 (CeGa2Al2-type), Ce2Ni3Si5 (U2Co3Si5-type), Ce3Ni6Si2 (Ce3Ni6Si2-type), Ce3Ni4Si4 (U3Ni4Si4-type), CeNiSi2 (CeNiSi2-type), similar to CeNi1.3Si0.7 (unknown type structure), Ce6Ni7Si4 (Pr6Ni7Si4-type), CeNiSi (LaPtSi-type), CeNi0.8-0.3Si1.2-1.7 (AlB2-type), similar to Ce2Ni2Si (unknown type structure), similar to Ce4.5Ni3.5Si2 (unknown type structure), Ce15Ni7Si10 (Pr15Ni7Si10-type), Ce5Ni1.85Si3 (Ce5Ni1.85Si3-type), Ce6Ni1.4Si3.4 (Ce6Ni1.67Si3-type), Ce7Ni2Si5 (Ce7Ni2Si5-type) and Ce3NiSi3 (Y3NiSi3-type) has been confirmed in this section.Moreover, the type structure has been determined for similar to Ce2Ni2Si (Mo2NiB2-type Ce2Ni2.5Si0.5) and similar to Ce4.5Ni3.5Si2 (W3CoB3-type Ce3Ni3-2.7Si1-1.3) and new ternary phases Ce2Ni6.25Si0.75 (Gd2Co7-type), CeNi7-7.6Si6.54 (GdNi7Si6-type) and similar to Ce27Ni42Si31 (unknown type structure) have been identified in this system.Quasi-binary phases, solid solutions, were detected at 870/1070 K for CeNi5, CeNi3 and CeSi2; while no appreciable solubility was observed for the other binary compounds of the Ce-Ni-Si system.As a prolongation of Rare Earth-Ni-Si system's isostructural rows, LaNi7Si6 and YNi6.6Si6.1 (GdNi7Si6-type), ScNi6Si6 (YCo6Ge6-type), NdNi6Si6 (YNi6Si6-type), Tb, Ho}(2)Ni15Si2 (Th2Zn17-type), Nd2Ni2.3Si0.7 and Sm2Ni2.2Si0.8 (Mo2NiB2-type), Nd3Ni2.55Si1.45 (W3CoB3-type) and Tb, Dy}(7)Ni50Si19 (Y7Ni49Si20-type) compounds were synthesized and investigated.Magnetic properties of the CeNi6Si6, CeNi7Si6, CeNi3.5Si4.2, Ce6Ni7Si4, CeNi5Si, Ce2Ni2.5Si0.5, Nd2Ni2.3Si0.7 and Dy7Ni50Si19 compounds have also been investigated and are presented here. (C) 2016 Elsevier Inc. All rights reserved.