nickel ferrite

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 过渡金属有机体
• 英文名称: nickel ferrite
• 英文别名: iron;nickel;tetrahydrate
• 化学式: FeNiO₄
• 分子量: 178.535
• InChiKey: GPUUEMACTZSNRR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -3.3
• 重原子数：
  6
• 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：
  4
• 氢给体数：
  4
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  草酸 、 nickel ferrite 在 sodium hydroxide 、 sodium perchlorate 作用下， 以 水 为溶剂， 生成 ferric oxalate
  参考文献：
  名称：

  金属氧化物的反应性：M O和M Fe 2 O 4（M = Ni，Co，Zn）的热和光化学溶解

  摘要：

  在70°C下测量NiO，CoO，ZnO，α -Fe 2 O 3和相应的铁素体在pH值为3.5的0.1 mol dm -3草酸中的溶解速率。简单氧化物的溶解通过表面草酸金属配合物的形成而进行，然后转移表面配合物（确定速率的步骤）。在恒定的pH，草酸盐浓度和温度下，表面络合物转移的一级速率常数的趋势（k Me ; Me = Ni，Co，Zn，Fe）与溶解的金属离子中的水交换平行（ķ -w）。因此，确定金属氧化物的溶解速率的最重要的因素是ME-O键，其是在由金属离子和其电荷/半径比的电子结构限定转弯不稳定性。紫外线（384 nm）照射不会显着增加NiO，CoO和ZnO的溶解速率，而赤铁矿对紫外线高度敏感。为铁氧体，则反应顺序是的ZnFe 2 ö 4 >的CoFe 2 ö 4 ⪢NiFe 2 Ò 4。溶解是全等，与速率的那些组分氧化物的之间的中间，铁2 ö 3和中号O（中号= Co，Ni，Zn），

  DOI：

  10.1016/j.jssc.2008.05.032
• 作为产物：
  描述：

  Iron(III) nitrate nonahydrate 、 nickel(II) nitrate hexahydrate 在 citric acid monohydrate 、 ammonia 作用下， 以 水 为溶剂， 生成 nickel ferrite
  参考文献：
  名称：

  Synthesis and magnetic properties of NiFe2−xAlxO4 nanoparticles

  摘要：

  Nanocrystalline Al-doped nickel ferrite powders have been synthesized by sol-gel auto-ignition method and the effect of non-magnetic aluminum content on the structural and magnetic properties has been studied. The X-ray diffraction (XRD) revealed that the powders obtained are single phase with inverse spinel structure. The calculated grain sizes from XRD data have been verified using transmission electron microscopy (TEM). TEM photographs show that the powders consist of nanometer-sized grains. It was observed that the characteristic grain size decreases from 29 to 6 nm as the non-magnetic Al content increases, which was attributed to the influence of non-magnetic Al concentration on the grain size. Magnetic hysteresis loops were measured at room temperature with a maximum applied magnetic field of approximate to 1T. As aluminum content increases, the measured magnetic hysteresis curves become more and more narrow and the saturation magnetization and remanent magnetization both decreased. The reduction of magnetization compared to bulk is a consequence of spin non-collinearity. Further reduction of magnetization with increase of aluminum content is caused by non-magnetic Al3+ ions and weakened interaction between sublattices. This, as well as the decrease in hysteresis was understood in terms of the decrease in particle size. (c) 2007 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jmmm.2007.03.204

文献信息

• Nonstoichiometric Spinel Ferrites Obtained from α-NaFeO₂ via Molten Media Reactions
  作者：Emilio Morán、M Carmen Blesa、M.-Eloisa Medina、Jesús D. Tornero、Nieves Menéndez、Ulises Amador

  DOI：10.1021/ic011302k

  日期：2002.11.1

  Different solid/liquid "exchange" reactions involving divalent cations, protons, or ammonium ions have been performed at low/moderate temperatures (between 80 and 500 degrees C) on alpha-NaFeO2 dipped in molten salts (or acid) media. Several ferrites have been obtained which are nonstoichiometric with partially inverse spinel structures. When sodium is replaced by divalent cations (Mg2+, Co2+, Ni2+, and

  涉及二价阳离子，质子或铵离子的不同固/液“交换”反应已在浸入熔融盐（或酸）介质中的α-NaFeO2上的低温/中温（80至500摄氏度）下进行。已获得几种非化学计量的具有部分反尖晶石结构的铁氧体。当钠被二价阳离子（Mg2 +，Co2 +，Ni2 +和Zn2 +）代替时，获得的铁氧体是超化学计量的（阳离子/氧比高于3/4），而质子或铵反应导致化学计量不足的材料（阳离子/氧低于3） / 4）。所有这些铁素体都呈现出片状形态，并表现出亚铁磁性，软磁铁的行为。
• Magnetoelectric effect of (100−x)BaTiO3–(x)NiFe1.98O4 (x=20–80 wt %) particulate nanocomposites
  作者：G. Sreenivasulu、V. Hari Babu、G. Markandeyulu、B. S. Murty

  DOI：10.1063/1.3095600

  日期：2009.3.16

  The magnetoelectric (100−x)BaTiO3–(x)NiFe1.98O4 (x=20, 40, 60, and 80 wt %) particulate composites have been prepared and the effects of size and interface are studied through microscopy measurements. Large magnetoelectric voltage coefficient (αE) values accompanied by large piezoelastic coefficient, large magnetostrictive strain coefficient, and an adequate interface contact between the magnetic and

  已经制备了磁电 (100-x)BaTiO3-(x)NiFe1.98O4（x=20、40、60 和 80 wt%）颗粒复合材料，并通过显微镜测量研究了尺寸和界面的影响。在这些纳米复合材料中观察到大磁电电压系数 (αE) 值伴随着大压电弹性系数、大磁致伸缩应变系数以及磁相和电相之间足够的界面接触。x=40 的纳米复合材料的 αE 值为 252 mV cm-1 Oe-1，根据现有的公开文献，这是任何颗粒磁电复合材料的最大值。
• Crystal and Magnetic Structures of a Nickel-Rich Ferrite Obtained by Ionic Exchange from α-NaFeO2
  作者：M.C. Blesa、E. Morán、U. Amador、N.H. Andersen

  DOI：10.1006/jssc.1996.7249

  日期：1997.2

  The crystallographic structure of a hyperstoichiometric Ni1+xFe2−2x/3O4(x=0.30) spinel-like material, obtained by a soft chemistry synthetic route, has been refined by combining X-ray and neutron powder diffraction data. This compound shows a structure intermediate between the rocksalt and the spinel structure types. The results of the refinement of the magnetic structure are also presented and discussed

  通过化学合成方法获得的化学计量高的化学计量的Ni 1+ x Fe 2−2 x / 3 O 4（x = 0.30）尖晶石状材料的晶体结构已经通过结合X射线和中子粉末衍射数据得到了改进。该化合物显示出介于岩石盐和尖晶石结构类型之间的结构。还介绍并讨论了磁结构的优化结果。
• Effect of sintering temperature on structural, elastic, and hyperfine features of nickel ferrite nanoparticles
  作者：V. Bilovol、J. Żukrowski、M. Sikora、D. Errandonea、K. Berent、M. Gajewska

  DOI：10.1016/j.jmmm.2024.171744

  日期：2024.2

  Additionally, based on MS measurements in 78–292 K region, we estimated the Debye temperatures of the Fe ions in the tetra- and octahedral geometries and found that the recoiless f-factor depends on the sintering temperature of the nickel ferrite powders. The ratio fO/fT is about 0.98 and 0.95 at room temperature for the samples sintered at 1000 °C and 600 °C, respectively.

  温度是磁性纳米颗粒系统合成的关键参数之一，可以显着影响晶体结构中原子的排列。因此，磁性、弹性和结构特性受到强烈影响。在软磁NiFe 1.8 O 4尖晶石铁氧体中，两种可能的不同几何形状（四面体（T）和八面体（O））中Ni和Fe离子的相对数量极其重要。在这项工作中，研究了这种材料的共沉淀合成产物，然后进行温度依赖性烧结。我们在 Ni K和L 2边缘使用同步加速器辐射进行了57 Fe 穆斯堡尔光谱 (MS)、X 射线衍射 (XRD)、扫描和透射电子显微镜（SEM 和 TEM）、X 射线吸收光谱 (XAS) ，和振动样品磁力测量 (VSM) 测量。XAS 测量发现，当烧结温度升高时，Ni 原子更倾向于八面体配位。MS 表明，T 位点上的 Fe 离子比 O 位点更多，这一事实可以通过 O 位点中铁离子空位的存在来解释。然而，随着烧结温度的升高，我们发现Fe原子也向O位迁移。此外，根据 78-292
• Phase equilibria and crystal structures of phases in the La-Fe-Ni-O system at 1370 K in air
  作者：E. A. Kiselev、N. V. Proskurnina、V. I. Voronin、V. A. Cherepanov

  DOI：10.1134/s0020168507020148

  日期：2007.2

  The phase equilibria in the La-Fe-Ni-O system have been studied at 1370 K in air, and the La-Fe-Ni-O phase diagram at constant temperature and pressure has been constructed. Based on x-ray diffraction results for samples prepared by standard solid-state reactions and via citrate and nitrate routes, the following solid solutions have been shown to exist at 1370 K in air: LaFe1 - xNixO3 - delta (0 < x <= 0.4, sp. gr. Pbnm; 0.6 <= x <= 0.8, sp. gr. R<(3)over bar> c), La-4(Ni1 - yFey)(3)O10 - delta (0 < y <= 0.3), La-3(Ni1 - zFez)(2)O7 - delta (0 < z <= 0.05), La2Ni1 - vFevO4 + delta (0 < v <= 0.05), NikFe3 - kO4 (0.81 <= k <= 1.05), Ni1 - mFemO (0 < m <= 0.05), and Fe2 - p NipO3 (0 < p <= 0.04). The lattice constants and structural parameters of single-phase samples have been refined by the Rietveld profile analysis method.