iron iron Cobalt | 39356-57-5

• 分子结构分类: 无机化合物 - 均相金属化合物 - 均相过渡金属化合物
• 英文名称: iron iron Cobalt
• 英文别名: Cobalt--iron (1/2)；cobalt;iron
• CAS: 39356-57-5
• 化学式: CoFe₂
• 分子量: 170.687
• InChiKey: CYXIENZYTDFIFC-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：

  iron iron Cobalt 在 乙醇 、 氢气 、 甲烷 作用下， 以 neat (no solvent) 为溶剂， 反应 1.5h， 生成 cobalt ferrite
  参考文献：
  名称：

  Enhanced rate capability and cycling stability of core/shell structured CoFe2O4/onion-like C nanocapsules for lithium-ion battery anodes

  摘要：

  In this work, core/shell structured CoFe2O4/onion-like C nanocapsules have been successfully fabricated by the arc discharge method and air-annealing process and confirmed by X-ray diffraction and high-resolution transmission electron microscopy. The core/shell structure effectively withstands the volume change of CoFe2O4 nanoparticles during the cycling process. Moreover, the onion-like C shells reduce the charge transfer resistance and facilitate electron and ion transport throughout the electrode. As a result, CoFe2O4/onion-like C nanocapsules exhibit excellent performance as a potential anode material for lithium ion batteries and deliver a reversible capacity of 914.2 mA h g(-1) at 0.1C, even after 500 cycles and recover its original capacity when the rate returns from 4C to the initial 0.1C after 120 cycles. (C) 2015 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jallcom.2015.04.097
• 作为产物：
  描述：

  cobalt ferrite 在 氢气 作用下， 生成 iron iron Cobalt
  参考文献：
  名称：

  通过蛋白质溶胶-凝胶合成制备的纳米球状 Co、Fe 基复合材料和合金的高磁矩：结构、磁性研究和 OER 活性

  摘要：

  这项工作研究了 CoFe 2 /CoFe 2 O 4复合材料和通过蛋白质溶胶-凝胶合成获得的 CoFe 2合金作为析氧反应 (OER) 电催化剂的磁性行为。两种样品均通过两步合成获得：(i) 首先，使用蛋白质溶胶-凝胶合成途径制备 CoFe 2 O 4纳米颗粒；(ii) 其次，钴铁氧体纳米颗粒在 300 °C 下的还原反应（ CoFe 2 /CoFe 2 O 4 ) 和 500 °C (CoFe 2 ) 使用 H 2气氛。通过扫描和透射电子显微镜（FESEM 和 TEM）、X 射线衍射（XRD）、穆斯堡尔光谱（MS）和磁力计研究了作为场和温度函数的形态、结构和磁性。FESEM 和 TEM 分析表明纳米粒子具有球状形态。通过 XRD 数据的 Rietveld 精修证明了样品的纳米结构特征。穆斯堡尔谱揭示了还原样品中 CoFe 2金属相的形成。在 5 K 下获得的磁化强度与场 (MH) 曲线 表明

  DOI：

  10.1016/j.jallcom.2023.168783

文献信息

• Porous amorphous FeCo alloys as pre-catalysts for promoting the oxygen evolution reaction
  作者：Wenjuan Zhu、Guoxing Zhu、Chengli Yao、Hu Chen、Jing Hu、Yi Zhu、Wenfu Liang

  DOI：10.1016/j.jallcom.2020.154465

  日期：2020.7

  composed of earth-abundant elements for oxygen evolution have gained significant attention. In this study, a FeCo alloy electrocatalyst with an amorphous and porous structure was designed and prepared. The electrochemical test results showed that the amorphous alloy product with a Co:Fe molar ratio of 2:1 showed an optimal intrinsic catalytic activity for oxygen evolution. At a current density of 10 mA cm−2

  摘要 由地球丰富元素组成的用于析氧的高效电催化剂的设计和开发受到了广泛关注。在这项研究中，设计并制备了一种具有非晶多孔结构的 FeCo 合金电催化剂。电化学测试结果表明，Co:Fe摩尔比为2:1的非晶合金产品表现出最佳的析氧固有催化活性。在 10 mA cm−2 的电流密度下，KOH 溶液 (1 mol L−1) 中仅需要 290 mV 的小过电位，远低于单金属催化剂的过电位（无定形钴为 428 mV，用于相同的电流密度）。该催化剂的双金属组成产生了强烈的协同效应。而且，它表现出无定形和多孔结构，具有大量暴露的活性位点以及高导电性。这些因素促成了该催化剂优异的催化性能。这项研究为高级析氧反应催化剂的设计提供了见解。
• Electrochemical deposition and characterization of CoFe₂O₄thin films
  作者：S. D. Sartale、C. D. Lokhande、V. Ganesan

  DOI：10.1002/pssa.200406898

  日期：2005.1

  An electrochemical deposition process, which is a combination of electrodeposition of CoFe2 alloy from an ethylene glycol bath followed by its anodization at ambient temperature, is used to deposit CoFe2O4 thin films on different conducting substrates. Various deposition conditions are studied and optimized. The films have spinel CoFe2O4 structure with crystallite size less than 50 nm. The films are

  电化学沉积工艺是在乙二醇浴中电沉积 CoFe2 合金，然后在环境温度下进行阳极氧化，用于在不同的导电基底上沉积 O4 薄膜。研究和优化了各种沉积条件。该薄膜具有尖晶石 O4结构，微晶尺寸小于50 nm。薄膜具有粘附性并很好地覆盖了基材。薄膜在空气中在 500 °C 下退火 1 小时，并报告了观察到的特性。退火后，薄膜具有光滑和致密的表面，并具有改进的磁性。(© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
• Improved magnetic performance at low and high temperatures in non-exchange-coupling CoFe2O4/CoFe2 nanocomposites
  作者：X. Sun、Y.Q. Ma、Y.F. Xu、S.T. Xu、B.Q. Geng、Z.X. Dai、G.H. Zheng

  DOI：10.1016/j.jallcom.2015.05.009

  日期：2015.10

  The dispersive and uniform CoFe2O4 nanoparticles were synthesized by thermal decomposition of metal organic salt in organic solvent with high boiling point, and subsequently reduced in H-2 ambient for 1.5, 4 and 8 h to obtain the CoFe2O4/CoFe2 composite. The M(H) loops of all composites were measured at 10, 50, 100, 150, 200, 250, 300 and 390 K, respectively. The jumps around the zero magnetic field in M(H) loops below 200 K signify that no exchange-coupling takes place between soft and hard species. At 10 K, the maximum H-c, and M-r/M-s ratio are 16 kOe and 0.81 for the sample reduced for 1.5 h, the much larger value than that previously observed. When the measuring temperature increases, the H-c value monotonously decreases to 1.8, 1.7, 1.2 kOe, and correspondingly the M-r/M-s ratio decreases to 0.55, 0.45 and 0.40 at T = 300 K for samples reduced for 1.5, 4 and 8 h, respectively; these higher values at room temperature has not been obtained previously in CoFe2O4/CoFe2 composites as far as we know. We suggest that it is important to keep high anisotropy and weak dipolar interaction for improving H-c and M-r/M-s and that the M-r/M-s will be further improved if the exchange coupling was really realized between soft and hard magnets. Further investigations are in process. (C) 2015 Elsevier B.V. All rights reserved.
• CoFe2O4 nanowire arrays prepared by template-electrodeposition method and further oxidization
  作者：Z.H. Hua、R.S. Chen、C.L. Li、S.G. Yang、M. Lu、B.X. Gu、Y.W. Du

  DOI：10.1016/j.jallcom.2006.02.048

  日期：2007.1

  By electrodeposition method and further oxidization, CoFe2O4 nanowire arrays within anodic aluminum oxide (AAO) templates were obtained. The XRD result proved that the phase structure of the nanowires is cubic spinel-type, and they exhibit no preferred crystallite orientation. The TEM images showed that, the CoFe2 nanowires electrodeposited within the templates are loose, while they transformed into compact CoFe2O4 nanowires by thermal annealing in open air. When the pore widening time is 40 min, the coercivity of the nanowire arrays reaches the maximum, 1.9 kOe, with the applied field parallel to the nanowires. With further increasing of the pore widening time, the coercivity decreases. When the applied field is vertical to the nanowires, the coercivity decreases with increasing the pore widening time, monotonously. The squareness ratio of the nanowire arrays with parallel applied field decreases from 0.48 to 0.42, monotonously, whereas the squareness ratio with vertical applied field increases from 0.48 to 0.52. (c) 2006 Elsevier B.V. All rights reserved.