Cobalt--gadolinium (1/1) | 12016-75-0

• 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: Cobalt--gadolinium (1/1)
• 英文别名: cobalt;gadolinium
• CAS: 12016-75-0
• 化学式: Co₀Gd₀
• 分子量: 108.122
• InChiKey: VAUNMJNZQZLHJE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.0
• 重原子数：
  2
• 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

• 作为产物：
  描述：

  钴 、 氢化钆 以 neat (no solvent) 为溶剂， 反应 600.0h， 生成 Cobalt--gadolinium (1/1)
  参考文献：
  名称：

  GdNi1-x Cox 固溶体分解的晶体学和成分贡献

  摘要：

  摘要 GdNi GdCo 伪二元体系 GdNi 1− x Co x 已通过扫描电子显微镜 (SEM) 进行了研究。虽然 X 射线粉末衍射分析表明样品中存在高达 x = 0.50 的 GdNi 型相，但对 x = 0.50 样品的 SEM 研究揭示了由 GdNi (1:1) 相和新的 Gd 3 (Ni,Co) 2 (3:2) 相。x = 0.50 样品中 1:1 相的能量色散 X 射线光谱 (EDS) 表明 GdNi 0.60 Co 0.40 附近的组成，这被认为是固溶体的上限。在 x = 0.00 至 0.30 的样品中观察到约 5 vol% 的 Gd(Ni,Co) 2 型 (1:2) 第二相的持久性、穿透整个晶粒的精细特征和轻微的 Ni,Co 成分变化。这些 1 的 EDS 分析：2 区域表明 Co 随着 x 的增加急剧增加，而尽管背散射电子 (BSE) 成像表明存在变化，但基质仍保持标

  DOI：

  10.1016/j.jallcom.2016.11.312

文献信息

• Tunable thermal hysteresis in CoGd alloys
  作者：S. Demirtas、R. E. Camley、A. R. Koymen

  DOI：10.1063/1.2132530

  日期：2005.11.14

  We show that tunable magnetic thermal hysteresis can be realized for a simple ferrimagnetic CoGd alloy. The magnetization of a Co0.8Gd0.2 alloy shows a bow-tie curve as a function of temperature, which indicates supercooled and superheated phase transitions. The width of the magnetic thermal hysteresis can be tuned by an external magnetic field, with values of 190 K at fields near 100 Oe and values

  我们表明可以为简单的亚铁磁 CoGd 合金实现可调磁热滞。Co0.8Gd0.2 合金的磁化强度显示出作为温度函数的领结曲线，这表明过冷和过热相变。磁热滞的宽度可以通过外部磁场进行调整，在 100 Oe 附近的磁场值为 190 K，在 400 Oe 附近的值为 20 K。实验结果与理论计算相吻合。
• Electrodeposition of RE–TM (RE=La, Sm, Gd; TM=Fe, Co, Ni) films and magnetic properties in urea melt
  作者：Jiaxin Li、Heng Lai、Biqiang Fan、Bin Zhuang、Lunhui Guan、Zhigao Huang

  DOI：10.1016/j.jallcom.2008.10.157

  日期：2009.5

  Rare earth (RE)-3d transition metal (TM) films were codeposited in low temperature urea-acetamide-NaBr-KBr-RECl3-TMCl2. baths by potentiostatic electrolysis. Cyclic voltammetry is used to investigate the electrochemical behavior of RE(III) and TM(II) in baths on a Pt electrode. The reduction of TM(II) is an irreversible process. RE(III) cannot be reduced alone, but it can be inductively codeposited with TM(II). Some kinetic parameters are measured, e.g., the transfer coefficient alpha and the diffusion coefficient D-0 for TM(II). It is reasonably suggested that the RE-induced codeposition ability and efficiency is dominated by the electronegativity difference between RE and TM atoms. Moreover, it is found that the surface morphologies, the magnetic anisotropy and preferring orientation of the as-deposited RE-TM films depend strongly on the composition and potential. At last, it is observed that, there exists a clear anisotropy with easy magnetization along the plane of the RE-TM films. The magnetic anisotropy in amorphous RE-TM films should be due to the competing contributions from several factors, such as spin-orbit coupling, stress. etc. (C) 2008 Elsevier B.V. All rights reserved.
• Influence of Fe substitution on thermal stability and magnetocaloric effect of Gd60Co40-Fe amorphous alloy
  作者：H.Y. Zhang、J.T. Ouyang、D. Ding、H.L. Li、J.G. Wang、W.H. Li

  DOI：10.1016/j.jallcom.2018.07.332

  日期：2018.11

  A series of Gd60Co40-xFex (x = 0, 5, 10, 15, 20) amorphous ribbons were synthesized by melt-spinning method, and the addition of Fe is detrimental for thermal stability as well as glass forming ability of the alloys. With the increasement of Fe content, the magnetic transition temperature increases firstly and then decreases with the peak of 239 K obtained in Gd60Co30Fe10, while the magnetic entropy change vertical bar Delta S-M vertical bar reduces gradually. This phenomenon is possibly caused by variation of predominant exchange interaction from ferromagnetic to ferrimagnetic. Among these alloys, Gd60Co30Fe10, Gd60Co25Fe15 and Gd60Co20Fe20 represent table-like magnetocaloric effect of 4.4 +/- 0.1 Jkg(-1)K(-1), 4.0 +/- 0.1 Jkg(-1)K(-1) and 3.8 +/- 0.1 Jkg(-1)K(-1) in wide temperature ranges of 201-238 K, 178-228 K and 178-218 K under an applied field H of 5 T, which is probably ascribed to the local structural inhomogeneity in the amorphous matrix. This hypothesis could be confirmed by the deviation of exponent n (vertical bar Delta S-M vertical bar proportional to H-n) and the universal behavior of vertical bar Delta S-M vertical bar-T curves. The present study is expected to enhance the knowledge about the influence of additional elements on magnetocaloric effect and improve the performance of amorphous refrigerants in the Ericsson-cycle near room temperature. (c) 2018 Elsevier B.V. All rights reserved.
• Achieving a table-like magnetic entropy change across the ice point of water with tailorable temperature range in Gd-Co-based amorphous hybrids
  作者：L.Y. Ma、L.H. Gan、K.C. Chan、D. Ding、L. Xia

  DOI：10.1016/j.jallcom.2017.06.254

  日期：2017.11

  Alloys exhibiting table-like magnetic entropy change (-Delta S-m) profiles are regarded as ideal magnetic refrigerants for the Ericsson magnetic refrigeration cycle. In this work, we fabricated two Gd-Co-based amorphous hybrids using various combinations of Gd50Co50, Gd50Co48Fe2, Gd50Co48Mn2 and Gd50Co45Mn5 amorphous ribbons with Curie temperatures ranging from 245 K to 278 K, and obtained table-like -Delta S-m profiles across the ice point of water within different temperature ranges. The maximum -Delta S-m and refrigeration capacity of the amorphous hybrids were higher than those of other amorphous alloys or composites with flattened -Delta S-m values near room temperature, indicating that amorphous hybrids are good candidates for magnetic refrigerants in house-hold magnetic refrigerators. (C) 2017 Elsevier B.V. All rights reserved.