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iron(II) titanate

中文名称
——
中文别名
——
英文名称
iron(II) titanate
英文别名
Iron;titanium;tetrahydrate
iron(II) titanate化学式
CAS
——
化学式
Fe2O4Ti
mdl
——
分子量
223.572
InChiKey
GSEOHJOBNDFQGT-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    -3.31
  • 重原子数:
    7
  • 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:
    iron(II,III) oxideiron(II) titanate 以 neat (no solvent, solid phase) 为溶剂, 生成 Ti0.40Fe2.60O4
    参考文献:
    名称:
    xFe2TiO4-(1-x)Fe3O4(0≤x≤1)伪二元体系的结构、磁学和热学性质研究
    摘要:
    摘要 通过ulvospinel Fe 2 TiO 4 前驱体与商品Fe 3 O的固相反应合成了ulvospinel组分的x Fe 2 TiO 4 -(1− x )Fe 3 O 4 伪二元体系(0≤ x ≤1)。 4 种化学计量比的粉末。通过 X 射线粉末衍射 (XRD) 确定晶体结构,发现所获得的钛磁铁矿保持反尖晶石结构。合成的钛磁铁矿的晶格参数a随着ulvospinel组分的增加而线性增加。57 Fe 室温穆斯堡尔谱用于评估磁性和阳离子分布。观察到超精细磁场随着Fe 2 TiO 4 组分的增加而降低。随着Ti 4+ 含量的增加,Fe 2+ 在四面体和八面体位点的比例增加,由于 Fe 3+ 被 Ti 4+ 取代和还原,从而保持尖晶石结构中的电荷平衡。对于 x 在 0 ≤ x ≤ 0.4 的范围内,固溶体在室温下是亚铁磁性的。然而,它在 0.4 x ≤ 0.7 的范围内对 x 表现出弱亚铁磁和顺磁行为。当
    DOI:
    10.1016/j.jmmm.2011.12.012
  • 作为产物:
    描述:
    氢气 作用下, 反应 3.0h, 生成 iron(II) titanate
    参考文献:
    名称:
    Catalytic Activity of Titanomagnetite in Heterogeneous Fenton Reaction: Contribution from Structural Fe2+ and Fe3+
    摘要:
    In this study, the contribution of structural Fe2+ and Fe3+ on the Fenton reactivity of titanomagnetite (Fe3-x TixO4, 0 <= x <= 1) was compared. Ulvospinel (Fe2TiO4, x = 1) and its oxidized phase, titanomaghemite ((Fe2Ti)(0.8)O-4) were prepared and tested as catalysts for the oxidative degradation of methylene blue (MB) via heterogeneous Fenton reaction at neutral pH. The prepared catalysts were characterized by XRD, TG-DSC and N-2 adsorption/desorption. The obtained results showed that both catalysts were with spinel structures, and Ti was introduced into their structures. Fe2TiO4 and (Fe2Ti)(0.8)O-4 catalysts exhibited high adsorption properties and a strong catalytic activity for methylene blue removal. The adsorption processes were well fitted to the Langmuir adsorption model, and the maximum adsorption capacities for Fe2TiO4 and (Fe2Ti)(0.8)O-4 were 165 and 190 mg g(-1), respectively. The degradation processes were described by a zero-order equation. Based on the rate constants normalized by the specific surface area and adsorption capacity, both catalysts displayed a comparable catalytic activity, suggesting that the activity of Fe2+ and Fe3+ in titanomagnetite for heterogeneous Fenton reaction was comparative. This was different from the observation from the homogeneous reaction, which was also discussed in terms of the reaction mechanism. The above obtained insights are of high importance for the environmental application of titanomagnetite.
    DOI:
    10.1166/jnn.2017.14517
  • 作为试剂:
    描述:
    iron(II) titanate 作用下, 生成 氧气
    参考文献:
    名称:
    Bhaduri, Monmatha, Zeitschrift fur physikalische Chemie (Neue Folge), 1982, vol. 132, p. 105 - 116
    摘要:
    DOI:
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文献信息

  • Oxygen stoichiometry control of nanometric oxide compounds: The case of titanium ferrites
    作者:N. Millot、P. Perriat
    DOI:10.1016/j.jssc.2011.08.007
    日期:2011.10
    original device, based on H2/H2O equilibrium, controlling oxygen partial pressure: XRD, TGA and DC conductivity in order to characterize very reactive compounds such as nanometric powders. From XRD, both the structure and the oxygen stoichiometry (thanks to their lattice parameter) were investigated in situ. From TGA, it was the oxygen stoichiometry (thanks to mass gain or loss) which was determined. From
    三种技术已与基于H 2 / H 2 O平衡的原始设备相结合,用于控制氧分压:XRD,TGA和DC电导率,以表征反应性极强的化合物(例如纳米粉末)。根据XRD,对结构和氧化学计量(由于其晶格参数)进行了原位研究。从TGA,确定的是氧气化学计量(由于质量的增加或减少)。从DC电导率,既得到结构又得到氧化学计量(由于活化能)。优点是可以非常快速地确定并以少量粉末确定平衡条件(T,p O 2),以获得所需的相和化学计量。已对纳米氧体评估了这些方法。在还原过程中观察到了两种现象:菱面体相的沉淀和显着的晶粒长大联系在一起。
  • Synthesis of FeTi from mixed oxide precursors
    作者:Serdar Tan、Taylan Örs、M. Kadri Aydınol、Tayfur Öztürk、İshak Karakaya
    DOI:10.1016/j.jallcom.2008.07.018
    日期:2009.5
    Fe 2 TiO 5 and TiO 2 in the oxide pellet reacts with the molten salt even before the electrolysis forming CaTiO 3 , transforming the rest into a mixture of ilmenite (FeTiO 3 ) and a spinel phase (Fe 2 TiO 4 ). During electrolysis these complex oxides were converted into simpler ones. Fe is the first element to be produced followed by the intermetallic Fe 2 Ti. FeTi evolves quite late in the electrolysis
    摘要 对混合氧化物前驱体采用电脱氧法合成FeTi属间化合物进行了研究。Fe 2 O 3 和TiO 2 以1:2的摩尔比混合,在900°C至1300°C的温度范围内烧结。混合氧化物的烧结颗粒作为阴极连接,然后在 900 °C 的熔融 CaCl 2 中使用石墨阳极在 3.2 V 的电势下电解。只有当烧结温度为接近或高于 1100°C。使用间断实验跟踪脱氧过程。这表明氧化物颗粒中 Fe 2 TiO 5 和 TiO 2 的两相结构甚至在电解形成 CaTiO 3 之前就与熔盐反应,将其余部分转化为矿 (FeTiO 3 ) 和尖晶石相 (Fe 2 TiO 4 ) 的混合物。在电解过程中,这些复杂的氧化物被转化为更简单的氧化物。Fe 是第一个产生的元素,其次是属间化合物 Fe 2 Ti。FeTi 在电解过程中演化得相当晚,这似乎是随着 CaTiO 3 的还原而发生的。结果表明,中断实验和对部分还
  • Impact of irradiation-induced point defects on electronically and ionically induced magnetic relaxation mechanisms in titano-magnetites
    作者:F. Walz、V. A. M. Brabers、H. Kronmüller
    DOI:10.1002/pssa.200723441
    日期:2008.12
    with vacancy- (450 K) and interstitial-based (200 K) defect reorientations, including modified electron hopping (65 K). The present study was performed in order to check the previously developed relaxation model by low-temperature (80 K) electron (e–) irradiation of the prerecovered crystal and investigating if thereby the point-defect relaxations of the initial, as-grown, state could be reconstituted
    本报告分析了在含有 B 位空位 (D < 0.005)。在上述实验中,这些位于 450 K、200 K 和 65 K 附近的过程在系统退火到 Ta ≤ 1200 K 的过程中已完全恢复。对各自退火动力学的分析表明它们与空位相关联-(450 K) 和基于间隙的 (200 K) 缺陷重新定向,包括改进的电子跳跃 (65 K)。进行本研究是为了通过低温 (80 K) 电子 (e-) 辐照预回收晶体来检查先前开发的弛豫模型,并研究是否由此发现初始生长的点缺陷弛豫,可以重构状态。MAE 分析基于 80 K ≤ Ta ≤ 1200 K 温度范围内的系统样品退火,确实证明了辐射诱导的相关过程再现。各个工艺谱系的部分修改可以方便地分配给缺陷诱导的替代技术,即热平衡或不平衡的高温晶体生长,低温电子辐照。(© 2008 WILEY-VCH Verlag GmbH & Co. KGaA,魏因海姆)高温晶体在热平衡或失衡状态下生长,低温电子辐照。(©
  • Control of grain size and morphologies of nanograined ferrites by adaptation of the synthesis route: mechanosynthesis and soft chemistry
    作者:N. Guigue-Millot、S. Bégin-Colin、Y. Champion、M.J. Hÿtch、G. Le Caër、P. Perriat
    DOI:10.1016/s0022-4596(02)00012-9
    日期:2003.1
    of mechanosynthesis, the ball-milled powders consist of aggregates, those obtained by soft chemistry are very well dispersed. Moreover the chosen investigated nanopowders present a blocked/superparamagnetic transition depending on the grain size. The grain size morphologies obtained by the two techniques of synthesis can then be fully characterized by complementary experiments: in addition to high-resolution
    组成为Fe 2.5 Ti 0.5 O 4的纳米晶基尖晶石可以使用两种不同的途径合成:软化学和高能球磨。本文着重于以下事实:每种类型的合成过程均可产生微晶尺寸约为15 nm的粉末,但其晶粒尺寸分布和团聚状态存在显着差异。在机械合成的情况下,球磨粉由聚集体组成,而通过软化学法获得的那些则非常分散。而且,所选择的研究的纳米粉末根据晶粒尺寸呈现出受阻/超顺磁转变。然后,可以通过互补实验充分表征通过两种合成技术获得的晶粒尺寸形态:除高分辨率图像处理外,
  • Studies on Some Titanium-Substituted Fe2MoO4Spinel Oxides
    作者:A. Roy、J. Ghose
    DOI:10.1006/jssc.1998.7846
    日期:1998.10
    activation energy for carrier concentration generation (En), and mobility (μ) values have been calculated from resistivity and thermoelectric power data. The results show that conduction in titanium-substituted Fe2MoO4samples, i.e., Fe2Mo1−xTixO4, is carried out through the hopping of charge carriers, and the linear ln (ρ) vs 1/Tplots show a break at the magnetic phase transition temperature. Progressive
    电阻率(ρ)和热电功率(α)测量在惰性气氛中进行对Fe 2沫1- X的Ti X ø 4(0.0≤ X ≤1.0)尖晶石氧化物中的温度为100-600和300-600ķ , 分别。已经从电阻率和热电数据计算出了热活化能(E a),载流子浓度(n),用于产生载流子浓度的活化能(E n)和迁移率(μ)值。结果表明,在取代的Fe 2 MoO 4中的导电通过电荷载流子的跃迁进行了Fe 2 Mo 1- x Ti x O 4样品的测试,线性ln(ρ)与1 / T的关系图显示了在磁性相变温度处的断裂。Fe 2 MoO 4中逐渐取代表明,Fe 3+ / Fe 2+的比例降低,而在Fe 2 TiO 4中,该比例非常小。Fe 3+的含量随x的增加而减少,导致Fe 2 TiO的高电阻率和大晶格参数4。
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