iron aluminum

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 各种混合金属/非金属
• 英文名称: iron aluminum
• 英文别名: iron aluminide；aluminum iron；alumane;iron
• 化学式: AlFe
• 分子量: 82.8285
• InChiKey: KCZFLPPCFOHPNI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.19
• 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

• 作为反应物：
  描述：

  sodium hydroxide 、 iron aluminum 以 水 为溶剂， 反应 2.0h， 生成 iron(II,III) oxide
  参考文献：
  名称：

  Regular Fe3O4 octahedrons with excellent soft magnetic properties prepared by dealloying technique

  摘要：

  The dealloying processes of Al-15Fe (at.%) alloy ribbons consisting of two distinct phases of alpha-Al (Fe) and Al13Fe4 in NaOH solutions were investigated. The effects of NaOH solution concentration, dealloying temperature and time on the results were comparatively discussed. The as-dealloyed samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS). It was found that all of the three experimental conditions could affect the morphology of the as-dealloyed samples, and the influence of solution concentration was the crucial factor. The Al could be leached out from both the alpha-Al (Fe) and Al13Fe4 phases to obtain regular octahedral Fe3O4 under most of the experimental conditions except for that in the 0.5 mol L (1) NaOH solution at ambient temperature. In particular, the Fe3O4 from dealloying Al-15Fe ribbons in 5 mol L (1) NaOH solution for 48 h at ambient temperature shows a uniform octahedral structure (average edge length: 667 +/- 158 nm) and special magnetic properties (saturation magnetization: 83.3 emu g (1), residual magnetization: 10.4 emu g (1) and coercive force: 256.9 Oe), implying its potential applications in magnetic fluid, information storage, etc. (C) 2013 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jallcom.2013.10.017
• 作为产物：
  描述：

  铁粉 、 氢化铝 以 melt 为溶剂， 反应 168.0h， 生成 iron aluminum
  参考文献：
  名称：

  Fe-Al金属间化合物的热容量：B2-FeAl、FeAl 2 、Fe 2 Al 5 和Fe 4 Al 13

  摘要：

  摘要 三种富铁 bcc 基 Fe-Al 合金（35、40 和 45 at.% Al）和三种富铝金属间化合物 ζ (FeAl2)、η (Fe2Al5) 和 θ (Fe4Al13) 的热容分别为通过 DSC 在 120 K 和它们各自的熔点之间测量。对于富铁 bcc 基合金，热容是在 A2/B2 转变的温度范围内测量的，对于成分为 35 和 40 at 的样品，热容达到最大值 54.7 和 86.3 J / K ⋅ mol。 % Al 分别接近有序/无序转变温度 1456 和 1555 K。富铝金属间相 ζ ( Θ D = 455 K , S 298.15 = 24.45 J / K ⋅ mol ), η ( Θ D = 484 K , S 298.15 = 23.00 J / K ⋅ 的德拜温度和标准熵值mol ) 和 θ ( Θ D = 469 K , S 298.15 = 23.65 J

  DOI：

  10.1016/j.jallcom.2017.07.199
• 作为试剂：
  描述：

  氘代甲醇-d 在 iron aluminum 作用下， 以 neat (no solvent) 为溶剂， -153.1~626.9 ℃ 、0.0 Pa 条件下， 生成 alkaline earth salt of/the/ methylsulfuric acid 、 methane
  参考文献：
  名称：

  Adsorption and thermal decomposition of methanol on 3d transition metal (iron, nickel, titanium) aluminides: FeAl(110), NiAl, and TiAl

  摘要：

  The adsorption and thermal decomposition of methanol on FeAl(110), polycrystalline NiAl, and polycrystalline TiAl have been investigated. Temperature-programmed desorption (TPD) and ultraviolet and X-rav photoelectron spectroscopies (UPS and XPS) are used to investigate the electronic structure and thermal decomposition reactions on 3d transition metal aluminide surfaces. Methane and hydrogen are the two primary products that result from methanol decomposition on all the 3d transition metal aluminides. UPS of CH3OH/FeAl(110) and CH3OH/NiAl at 200 and 270 K, respectively, supports the existence of a methoxy intermediate (CH3O) on the Al component of FeAl(110) and NiAl. XPS results support a surface picture that has carbon chemisorbing on 'transition metal'' sites and the oxygen remaining on Al during the decomposition of the intermediate species. The peak temperatures of methane desorption from TiAl, FeAl(110), and NiAl are 450, 550, and 590 K, respectively.

  DOI：

  10.1021/j100141a041

文献信息

• Phase transformation behavior of alumina grown on FeAl alloys with reactive element dopants at 1273 K
  作者：Dongqing Li、Lixian Zhou、Yongping Xi、Long Liu、Zhen Liu、Jiajun Si、Kuanjun Zhu

  DOI：10.1016/j.jallcom.2016.09.092

  日期：2017.1

  different reactive elements (REs) at 1273 K was investigated. All the RE-doped alloys showed retarded phase transformation from θ-to α-AlO as compared to the RE-free alloy. The Y- and La-doping even led to much lower transformation rate than the Hf-, Zr- and Ce-doping. The effect mechanism associated with RE ion size and valence on the phase transformation of alumina was discussed. The additions of

  研究了掺杂不同活性元素 (RE) 的 B2 FeAl 合金在 1273 K 下的短期等温氧化行为。与不含 RE 的合金相比，所有掺 RE 合金都表现出从 θ-Al2O 到 α- 相变的延迟。 Y和La掺杂甚至导致比Hf、Zr和Ce掺杂低得多的转化率。讨论了稀土离子尺寸和价态对氧化铝相变的影响机制。预计大尺寸且与Al离子价态匹配的RE离子的添加​​可以更有效地抑制相变，并且RE掺杂产生的延迟θ-α相变、促进α相形核和抑制Al向外扩散的综合作用可能会发挥作用。使 FeAl 具有改善的氧化性能。
• Influence of heat of formation of B2/L12 intermetallic compounds on the milling energy for their formation during mechanical alloying
  作者：N.C. Abhik、R. Vivek、V. Udhayabanu、B.S. Murty

  DOI：10.1016/j.jallcom.2007.10.076

  日期：2008.10

  heat of formation of an intermetallic and the milling energy required for its formation during mechanical alloying. This has been demonstrated in case of B2 intermetallic compounds, namely, NiAl, FeAl, CoAl and MnAl. The milling energy corresponding to the start of formation of the compounds during mechanical alloying of the elemental blends is found to decrease linearly with the heat of formation of the

  摘要 本文试图得出金属间化合物的形成热与其在机械合金化过程中形成所需的铣削能量之间的关系。这已经在 B2 金属间化合物，即 NiAl、FeAl、CoAl 和 MnAl 的情况下得到证明。发现与元素混合物的机械合金化过程中化合物开始形成相对应的研磨能量随着金属间化合物的形成热而线性降低，使用 Miedema 模型计算。还合成了 Al 3 Zr、Ni 3 Al、Ni 3 Mn、CoFe、NiTi、Zr 3 Co，以尝试在更广泛的化合物范围内以及混合焓测试假设的强度。已尝试了解化合物形成的机制。
• Comparison of the background corrected valence band XPS spectra of Fe and Co aluminides and silicides with their electronic structures
  作者：Masaoki Oku、Toetsu Shishido、Hideyuki Matsuta、Kazuaki Wagatsuma

  DOI：10.1016/j.elspec.2006.06.006

  日期：2006.10

  satellite peaks in the Co 2p and Fe 2p regions. The experimentally background corrected valence band spectra were compared with the calculated spectra using the first-principle band calculation. There were large discrepancies between the spectra above the binding energy of 5 eV. These indicated that the experimental spectra could not be explained by the electronic structures of the ground states alone.

  摘要 研究了FeAl、FeSi、CoAl和CoSi的背景校正价带XPS光谱和电子结构。通过在 XPS 光谱仪中原位破碎样品，获得多晶样品的清洁表面。Fe 2p、Co 2p 和价带谱的能量损失部分通过使用Al 2s 或Si 2s 谱作为响应函数的去卷积方法去除。CoAl在Co 2p 区域显示出卫星峰，但其他化合物在Co 2p 和Fe 2p 区域没有明显的卫星峰。将实验背景校正的价带光谱与使用第一原理带计算的计算光谱进行比较。结合能高于 5 eV 的光谱之间存在很大差异。
• Microelectrode Evaluation of Transition Metal‐Aluminum Alloy Electrodepositions in Chloroaluminate Ionic Liquids
  作者：Richard T. Carlin、Hugh C. De Long、Joan Fuller、Paul C. Trulove

  DOI：10.1149/1.1838524

  日期：1998.5.1

  Chronoamperometric data collected at a 250 μm tungsten microelectrode were analyzed under near-steady-state conditions to determine the composition of MAl x alloys (M = Co, Ni, Fe, Cu, and Ag) electrodeposited from 1.5:1.0 AlCl 3 :1-ethyl-3-methylimidazolium chloride room temperature ionic liquids. The analysis method relied on the fact that these alloys are produced by an underpotential deposition mechanism

  在近稳态条件下分析在 250 μm 钨微电极上收集的计时电流数据，以确定从 1.5:1.0 AlCl 3 :1- 电沉积的 MAl x 合金（M = Co、Ni、Fe、Cu 和 Ag）的成分乙基-3-甲基咪唑氯化物室温离子液体。分析方法依赖于这样一个事实，即这些合金是通过欠电位沉积机制生产的。结果与之前的研究一致，表明 CoAl x 、FeAl x 和 CuAl x 系统倾向于生产 x 1 的合金。NiAl x 数据的分析因动力学现象而变得复杂，而 AgAl x 系统的数据分析被排除在电沉积的树枝状生长。所有合金系统都表现出复杂的阳极溶出伏安行为，以及氧化过程的性质（例如，金属阳极氧化、合金阳极氧化或选择性脱合金）对于在特定电位状态下产生的电沉积物是不同的。计时电流数据与适当的短时和长时间方程的非线性曲线拟合给出了约 3.9 x 10 -7 到 8.3 x 10 -7 cm 2 s -1
• Significant uptake and release of hydrogen in nonstoichiometric Fe-Al compounds
  作者：Kazuto Tokumitsu、Masao Matsuyama、Kazuki Morita

  DOI：10.1016/j.jallcom.2018.05.250

  日期：2018.10

  of hydrogen atoms in nonstoichiometric B2-type Fe–Al compounds by electrochemically charging hydrogen in an alkali water solution. For the Fe-poor nonstoichiometric alloys Fe46Al54 and Fe48Al52, the release of taken-up hydrogen began immediately after switching off the current and continued for 1 h, whereas no hydrogen was released from Fe50Al50 and Fe52Al48. The maximum amount of hydrogen released from

  摘要 基于氢亲和力研究了储氢和渗透合金。金属间化合物的氢吸收和释放行为对于理解俘获氢原子的机制和推进下一代氢能源材料具有重要意义。在这里，我们提出了由宪法空缺控制的站点模型。我们通过在碱性水溶液中电化学充电氢来研究非化学计量的 B2 型 Fe-Al 化合物中氢原子的吸收。对于贫铁非化学计量合金 Fe46Al54 和 Fe48Al52，在切断电流后立即开始释放吸收的氢并持续 1 小时，而 Fe50Al50 和 Fe52Al48 没有释放氢。Fe46Al54 在 10 V 充电时释放的最大氢气量约为 6。每克样品 30 cm3，对应于 H/M = 2.26 × 10−2 的原子比。这个氢浓度比纯α-铁中氢的溶解度高106倍。如此显着的氢吸收被认为是贫铁非化学计量组合物所特有的，其中包含结构空位。这是第一份充分解释贫铁 Fe-Al 金属间化合物的高吸收能力的报告。