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calcium ferrite

中文名称
——
中文别名
——
英文名称
calcium ferrite
英文别名
calcium dihydride;iron;tetrahydrate
calcium ferrite化学式
CAS
——
化学式
CaFe2O4
mdl
——
分子量
215.77
InChiKey
RIPGVSZATKMZTR-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):
    -4.22
  • 重原子数:
    7.0
  • 可旋转键数:
    0.0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.0
  • 拓扑面积:
    126.0
  • 氢给体数:
    0.0
  • 氢受体数:
    0.0

反应信息

  • 作为反应物:
    描述:
    calcium ferrite 生成 dicalcium ferrite
    参考文献:
    名称:
    Sosman, R. B.; Merwin, H. E., Journal of the Washington Academy of Sciences, 1916, vol. 6, p. 536
    摘要:
    DOI:
  • 作为产物:
    描述:
    三氯化铁calcium hydroxide 作用下, 以 为溶剂, 生成 calcium ferrite
    参考文献:
    名称:
    List, K., Chemische Berichte, 1878, vol. 11, p. 1513
    摘要:
    DOI:
  • 作为试剂:
    描述:
    苯乙烯calcium ferrite双氧水 作用下, 以 乙醇 为溶剂, 反应 18.0h, 生成 苯基乙二醇苯乙醛苯甲醛苯甲酸
    参考文献:
    名称:
    Optimization of reaction conditions in selective oxidation of styrene over fine crystallite spinel-type CaFe2O4 complex oxide catalyst
    摘要:
    The CaFe2O4 spinel-type catalyst was synthesized by citrate gel method and well characterized by thermogravimetric analysis, atomic absorption spectroscopy, Fourier-transform infrared spectroscopy, X-ray diffraction and transmission electron microscopy. The crystallization temperature of the spinel particle prepared by citrate gel method was 600 degrees C which was lower than that of ferrite prepared by other methods. CaFe2O4 catalysts prepared by citrate gel method show better activity for styrene oxidation in the presence of dilute H2O2 (30%) as an oxidizing agent. In this reaction the oxidative cleavage of carbon-carbon double bond of styrene takes place selectively with 38 +/- 2 mol% conversion. The major product of the reaction is benzaldehyde up to 91 +/- 2 mol% and minor product phenyl acetaldehyde up to 9 +/- 2 mol%, respectively. The products obtained in the styrene oxidation reaction were analyzed by gas chromatography and mass spectroscopy. The influence of the catalyst, reaction time, temperature, amount of catalyst, styrene/H2O2 molar ratio and solvents on the conversion and product distribution were studied. (C) 2010 Elsevier Ltd. All rights reserved.
    DOI:
    10.1016/j.materresbull.2010.01.011
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文献信息

  • A rapid one-step mechanosynthesis and characterization of nanocrystalline CaFe2O4 with orthorhombic structure
    作者:L.J. Berchmans、M. Myndyk、K.L. Da Silva、A. Feldhoff、J. Šubrt、P. Heitjans、K.D. Becker、V. Šepelák
    DOI:10.1016/j.jallcom.2010.03.199
    日期:2010.6
    prolonged exposure (∼20 h) at considerably elevated temperatures (∼1400 K). It was revealed that mechanosynthesised CaFe 2 O 4 nanoparticles with an average size of about 15 nm possess the core–shell structure consisting of an ordered inner core surrounded by a disordered surface shell with the thickness of about 1.9 nm. The main structural features of the surface shell of nanoparticles are distorted oxygen
    摘要 CaFe 2 O 4 纳米粉末是通过两种不同的前体混合物的单步机械化学处理制备的:简单氧化物(CaO 和α-Fe 2 O 3 )和元素属和氧化物粉末(Ca 和α-Fe 2 O 3 )。CaO/α-Fe 2 O 3 和Ca/α-Fe 2 O 3 混合物的机械诱导演化随后是57 Fe Mossbauer 光谱、XRD 和HR-TEM。如果从属/氧化物系统开始,CaFe 2 O 4 的机械合成进行得非常快;在室温下仅进行 1 小时的机械化学处理后,复合氧化物的合成几乎完成。这与传统的 CaFe 2 O 4 固态合成形成强烈对比,后者需要在相当高的温度(~1400 K)下长时间暴露(~20 小时)。结果表明,机械合成的平均尺寸约为 15 nm 的 CaFe 2 O 4 纳米颗粒具有核壳结构,由有序的内核组成,并被厚度约为 1.9 nm 的无序表面壳包围。纳米粒子表面壳的主要结构特征是扭曲的氧八面体。
  • Preparation of ferrites from the thermal decomposition of magnesium and calcium tris(succinato)ferrates(III) precursors
    作者:B. S. Randhawa、K. Gandotra
    DOI:10.1007/s10973-007-8252-z
    日期:2007.12
    Thermal analysis of alkaline earth metal ferrisuccinate precursors, M3[Fe(C4H4O4)3]2· x H2O ( M =Mg, Ca) has been studied isothermally and non-isothermally employing simultaneous TG-DTG-DSC, XRD, IR and Mössbauer spectroscopy to characterize the intermediates/end products. After dehydration, the anhydrous complexes decompose to yield an iron(II) oxalate intermediate, Fe(II)C2O4 in the temperature range
    碱土属亚琥珀酸酯前体M 3 [Fe(C 4 H 4 O 4)3 ] 2 · x H 2 O( M = Mg,Ca)的热分析已通过同时TG-DTG-等温和非等温研究。 DSC,XRD,IR和Mössbauer光谱用于表征中间体/最终产品。脱后,无配合物分解,生成草酸亚铁中间体(Fe (II) C 2 O 4),温度范围为180-250°C。这个的分解(II)物种导致的形成的α-Fe 2 ö 3以及在250-300°C的温度范围内的碱土金属氧化物/碳酸盐。最后,将化学计量的氧体,MgFe 2 ö 4和Ca 2的Fe 2 ö 5形成为的α-Fe之间的固态反应的结果2 ö 3和MO / MCO 3。我们采用的前驱体方法的一个特殊特征是,氧体的形成发生在比常规陶瓷方法低得多的温度下。
  • Synthesis of a well-dispersed CaFe<sub>2</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub>/CNT composite towards the degradation of toxic water pollutants under visible light
    作者:Fei Liu、Shaocan Dong、Zhaoxiang Zhang、Xiaqing Li、Xiaodong Dai、Yanping Xin、Xuewu Wang、Kun Liu、Zhenhe Yuan、Zheng Zheng
    DOI:10.1039/c9ra05005a
    日期:——
    X-ray photoelectron spectroscopy (XPS). The recombination rate of the charge carriers and the band gap values of the as-synthesized catalysts were analyzed by photoluminescence spectroscopy (PL) and diffused reflectance spectroscopy (UV/Vis DRS) studies, respectively. Besides the degradation reactions, the high hydrogen production rate of 1050 μmol h−1 under visible light using the CaFe2O4/g-C3N4/CNT
    在此,我们通过简单的热路线制备了由CaFe 2 O 4、多壁碳纳米管(CNTs)和石墨碳氮化物(gC 3 N 4)组成的三元光催化剂。CaFe 2 O 4作为光敏剂介质,CNT作为助催化剂,显着提高了gC 3 N 4对六价(Cr(VI)) 和可见光照射下的抗生素四环素 (TC)。为了研究光催化剂的形态和拓扑特征,进行了场发射扫描电子显微镜(FE-SEM)和透射电子显微镜(TEM)分析。CaFe 2 O 4 /gC 3 N 4 /CNT复合材料的表面性质和氧化态通过X射线光电子能谱(XPS)测定。分别通过光致发光光谱 (PL) 和漫反射光谱 (UV/Vis DRS) 研究分析了载流子的复合率和合成催化剂的带隙值。除了降解反应,1050 μmol h -1的高产氢速率在可见光下,观察到使用负载有 5 wt% CNT 的 CaFe 2 O 4 /gC 3 N 4 /CNT 复合材料。CaFe
  • Synthesis and characterization of a CaFe<sub>2</sub>O<sub>4</sub> catalyst for oleic acid esterification
    作者:Huei Ruey Ong、Md Maksudur Rahman Khan、Abu Yousuf、Nor Amalina Hussain、Chin Kui Cheng
    DOI:10.1039/c5ra17857f
    日期:——

    Esterification of free fatty acid (oleic acid) with ethanol over a calcium ferrite catalyst was investigated in the present study.

    本研究探讨了在催化剂作用下,游离脂肪酸油酸)与乙醇的酯化反应。
  • Visible-light induced superhydrophilicity on a WO3/ITO/CaFe2O4 heterojunction thin film
    作者:Zhifu Liu、Masahiro Miyauchi
    DOI:10.1039/b819312f
    日期:——
    The WO3/ITO/CaFe2O4 film surface showed visible-light induced superhydrophilicity, which is ascribed to efficient charge separation, resulting from the recombination of photo-electrons from WO3 with photo-holes from CaFe2O4 in the ITO layer.
    WO3/ITO/CaFe2O4薄膜表面显示出可见光诱导的超亲性,这是由于WO3中的光电子与ITO层中 中的光空穴发生复合,从而实现了有效的电荷分离。
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