Cobalt;scandium | 12017-41-3

• 分子结构分类: 有机化合物 - 有机盐 - 有机金属盐
• 英文名称: Cobalt;scandium
• 英文别名: cobalt;scandium
• CAS: 12017-41-3
• 化学式: Co₂Sc
• 分子量: 162.942
• InChiKey: VZJBQPISBGCLPR-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：

  Cobalt;scandium 、 氢气 以 neat (no solvent) 为溶剂， 生成
  参考文献：
  名称：

  Hydrogen absorbing properties of ScM2 Laves phase alloys (M = Fe, Co and Ni)

  摘要：

  Hydrogen absorbing properties of ScM(2) (M = Fe, Co and Ni) Laves phase alloys were studied by pressure-composition (PC) isotherm measurements at the temperature range from 293 K to 353 K. Crystal structural change of these alloys during hydrogenation was also studied by in situ X-ray powder diffraction measurements under hydrogen pressure up to 4 MPa. Clear plateaus were observed in all the absorption and desorption isotherms. The enthalpy of formation of ScM(2)H(x) (M = Fe, Co and Ni) was estimated from the equilibrium plateau pressure observed in the PC isotherm to be -28(1), -30(1) and -16(2), respectively, in units of kJ per mol H-2. In situ X-ray diffraction measurements revealed that the hydrogenation did not produce any change in metal substructure or any indication of amorphization in the ScM(2)-H-2 systems (M = Fe, Co and Ni). The cell volume, however, increased by 23.1% (Fe), 21.0% (Go) and 14.5% (Ni) upon hydrogenation.

  DOI：

  10.1016/0925-8388(95)01611-2
• 作为产物：
  描述：

  以 neat (no solvent) 为溶剂， 生成 Cobalt;scandium
  参考文献：
  名称：

  Burnasheva, V. V.; Ivanov, A. V.; Yartys', V. A., Inorganic MaterialsIzvestiya Akademii Nauk SSSR, Neorganicheskie Materialy, 1981, vol. 17, p. 704 - 707

  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。
• The transport properties of RCo₂compounds
  作者：E Gratz、R Resel、A T Burkov、E Bauer、A S Markosyan、A Galatanu

  DOI：10.1088/0953-8984/7/33/008

  日期：1995.8.14

  The transport properties of intermetallic compounds RCo2 (R=Pr, Nd, Sm, Gd-Lu, Sc and Y) in the temperature range from 4.2 up to 1000 K were studied and different contributions were determined. In the non-magnetic compounds the spin fluctuation contribution to the electrical resistivity, rho sf varies as (T/Tsf)2, and thermal resistivity, Wsf varies as (T/Tsf), were found to follow the theoretical

  研究了金属间化合物 RCo2（R = Pr、Nd、Sm、Gd-Lu、Sc 和 Y）在 4.2 至 1000 K 的温度范围内的传输特性，并确定了不同的贡献。在非磁性化合物中，自旋波动对电阻率的贡献，rho sf 随 (T / Tsf) 2 变化，而热阻率 Wsf 随 (T / Tsf) 变化，符合理论预测。推导了由传导电子在 4f 矩上散射引起的自旋无序贡献，并发现它与 de Gennes 因子成正比。结果表明，自旋涨落是温度相关热电势低温特性的原因，而高温行为主要由状态密度函数决定。在居里温度附近的顺磁区，
• Ferromagnetism of (ScCa)Co2 Laves phase compound synthesized under high pressure
  作者：M. Ohta、M. Okada、H. Kakuta、A. Fujita、K. Fukamichi、A. Kamegawa、H. Takamura、M. Okada

  DOI：10.1016/j.jallcom.2005.04.078

  日期：2006.2

  The appearance of ferromagnetism in (Sc 0.85 Ca 0.15 )Co 2 Laves phase synthesized under high pressure of 6 GPa was confirmed. A magnetically homogeneous state was achieved by applying pressure of 6 GPa in 1373 K for 48 h. This is the first study that confirmed a stable ferromagnetic state in exchange-enhanced Pauli paramagnet ScCo 2 -based compound system. The quantities of pressure P and magnetization

  摘要 证实了在6 GPa 高压下合成的(Sc 0.85 Ca 0.15 )Co 2 Laves 相中出现了铁磁性。通过在 1373 K 中施加 6 GPa 的压力 48 小时，实现了磁均匀状态。这是第一项在交换增强泡利顺磁 ScCo 2 基复合系统中证实稳定铁磁状态的研究。对于 (Sc 0.85 Ca 0.15 )Co，压力 P 和磁化强度 M 的量与居里温度 TC 的关系，dln TC /d P 和 (dln TC /d P )/(dln M /d P ) = dln TC /dln M 2 的磁矩小于Lu(Co 1 - x Al x ) 2 化合物的磁矩，因此(Sc 0.85 Ca 0.15 )Co 2 的磁矩对压力更硬。自旋波刚度常数 D s 与 TC 之比，D s / TC ，在 (Sc 0.85 Ca 0.15 )Co 2 中小于 Lu(Co 1 - x Al x ) 2 ，
• Dealloying-Induced Zeolite-like Metal Framework of AB₂ Laves Phase Intermetallic Electrocatalysts
  作者：Shen-Jing Ji、Li-Wen Cao、Peng Zhang、Guan-Bo Wang、Ying-Rui Lu、Nian-Tzu Suen、Sung-Fu Hung、Hao Ming Chen

  DOI：10.1021/jacs.3c05287

  日期：2023.8.16

  of alkaline water electrolysis (AWE). Herein, we design an open tunnel structure by dealloying a series of Laves phase intermetallics, i.e., MCo2 and MRu0.25Co1.75 (M = Sc and Zr). The dealloying process can induce a zeolite-like metal framework for ScCo2 and ScRu0.25Co1.75 by stripping Sc metal from the center of a tunnel structure. This structural engineering significantly lowers their overpotentials

  探索高 pH 值和高温下析氢反应 (HER) 的高效且稳定的电催化剂是碱性水电解 (AWE) 工业应用的关键。在此，我们通过脱合金一系列Laves相金属间化合物，即M Co 2和M Ru 0.25 Co 1.75 (M = Sc和Zr)来设计开放式隧道结构。脱合金过程可以通过从隧道结构中心剥离Sc金属来诱导ScCo 2和ScRu 0.25 Co 1.75的类沸石金属骨架。这种结构工程显着降低了电流密度为 500 mA/cm 2 (η 500 ) 时的过电势。1.0 M KOH 中为 80 mV。通过简单的工艺，ScRu 0.25 Co 1.75可以很容易地装饰在碳布基底上，并且只需要132 mV即可达到500 mA/cm 2。更重要的是，它可以在工业条件下（6.0 M KOH，333 K）保持活性超过1000小时，显示出其实际工业应用的潜力。
• Shilov, A. L., Russian Journal of Inorganic Chemistry, 1991, vol. 36, p. 1256 - 1261
  作者：Shilov, A. L.

  DOI：——

  日期：——