cerium(III) 2-ethylhexanoate | 56797-01-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: cerium(III) 2-ethylhexanoate
• 英文别名: cerium 2-ethylhexanoate；Ce(III) 2-ethylhexanoate；cerium octoate；Cerium(3+) 2-ethylhexanoate；cerium(3+);2-ethylhexanoate
• CAS: 56797-01-4
• 化学式: 3C₈H₁₅O₂*Ce
• 分子量: 569.738
• InChiKey: CKGRDXHHMJLGQH-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  0.95
• 重原子数：
  11
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  40.1
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 危险品标志：
  Xn
• 安全说明：
  S26,S36
• 危险类别码：
  R20/21/22
• WGK Germany：
  3

反应信息

• 作为反应物：
  描述：

  cerium(III) 2-ethylhexanoate 在 氢气 作用下， 以 甲醇 、 溶剂黄146 为溶剂， 生成 cerium(IV) oxide
  参考文献：
  名称：

  YBCO超导体织构镍合金基体溶液沉积氧化铈薄膜的研究

  摘要：

  氧化铈 (CeO{sub 2}) 缓冲层对于使用滚压辅助双轴织构基底开发 YBa{sub 2}Cu{sub 3}O{sub 7-x} (YBCO) 基超导带发挥重要作用（ RABiTS) 方法。化学溶液沉积 (CSD) 方法已用于在具有各种起始氧化铈前体的纹理化 Ni-3 at.% W 合金基板上生长外延 CeO{sub 2} 薄膜。前体如乙酸铈、乙酰丙酮酸铈、2-乙基己酸铈、硝酸铈和三氟乙酸铈在合适的溶剂中制备。这些铈前体的最佳生长条件是 Ar-4% H{sub 2} 气体处理气氛、0.2-0.5 M 的溶液浓度水平、15 分钟的停留时间和 1050-1150 度的工艺温度范围。C. X 射线衍射、AFM、SEM、和光学显微镜被用来表征 CeO{sub 2} 薄膜。高度织构的 CeO{sub 2} 层是在 Ni-W 衬底上获得的，醋酸铈和乙酰丙酮酸铈作为起始前体。在具有溅射 YSZ 和 CeO{sub

  DOI：

  10.1016/j.materresbull.2005.11.015

文献信息

• Soft-Chemistry Synthesis, Characterization, and Stabilization of CGO/Al₂O₃/Pt Nanostructured Composite Powders
  作者：Caroline Levy、Christian Guizard、Anne Julbe

  DOI：10.1111/j.1551-2916.2007.01506.x

  日期：2007.3

  Soft‐chemistry routes were used to synthesize Ce0.9Gd0.1O1.95‐based powders with attractive and stable structural, morphological, and textural properties. In the intermediate temperature range between 500° and 700°C, the average Gd‐doped CeO2 (CGO) crystallite size is in the range 9–22 nm and the specific surface area varies from 43.4 to 8 m2/g. Above 700°C, a phase separation occurs between ceria and gadolinium oxide. Addition of alumina was found to be useful in stabilizing the CGO nanocrystallites at a high temperature and to avoid phase separation. A homogeneous dispersion of Pt nanoparticles (<10 nm at 1000°C) in the CGO materials was found to be possible by post‐impregnation, although direct insertion of the Pt precursors during the synthesis led to aggregated particles, with less potential for catalytic applications.

  软化学方法被用于合成具有吸引力且结构稳定的Ce_0.9Gd_0.1O_1.95基粉末，这些粉末具有稳定的结构、形貌和 textures。在500°C至700°C的中温范围内，平均掺杂Gd的CeO₂（CGO）晶粒尺寸在9至22纳米之间，比表面积在43.4至8 m²/g之间。超过700°C后，铈和钆的氧化物之间会发生相分离。添加氧化铝被发现有助于在高温下稳定CGO纳米晶粒，并避免相分离。通过后浸渍法，发现可以在CGO材料中均匀分散Pt纳米颗粒（1000°C时小于10 nm），尽管在合成过程中直接插入Pt前驱体会导致颗粒聚集，从而降低催化应用的潜力。
• ZINC OXIDE-CERIUM OXIDE COMPOSITE PARTICLES
  申请人：Kroell Michael

  公开号：US20070149395A1

  公开（公告）日：2007-06-28

  Composite particles useful for absorbing in the UV-A and UV-B regions contain a zinc oxide matrix and cerium oxide domains, wherein the domains are located in and on the matrix, wherein a fraction of zinc oxide is 80 to 98% by weight and a fraction of cerium oxide is 2 to 20% by weight, in each case based on the composite particles, and wherein a BET surface area of said composite particles is from 5 to 100 m 2 /g.

  在UV-A和UV-B区域吸收有用的复合颗粒包含氧化锌基体和氧化铈领域，其中领域位于和在基体上，其中氧化锌的比例为80至98%重量，氧化铈的比例为2至20%重量，每种情况都是基于复合颗粒，所述复合颗粒的BET比表面积为5至100 m2/g。
• Syntheses of monodispersed SnO₂and CeO₂nanoparticles through the self-capping role of 2-ethylhexanoate ligands
  作者：Yong Joo Kim、Young Seok Kim、Seung Yong Chai、Dong Hyun Cha、Young Sik Choi、Wan In Lee

  DOI：10.1039/b609577a

  日期：——

  Monodispersed 2.4 nm-sized SnO2 and 2.6 nm-sized CeO2 nanoparticles have been reproducibly formed through a non-hydrolytic solvothermal reaction with 2-ethylhexanoate complexes, without the addition of extra surfactants. During the synthesis, the dissociated 2-ethylhexanoates from the central metals work as a capping agent, and this induces size control of the nanoparticles and the suppression of interparticular aggregation. The as-prepared nanoparticles are soluble in a non-polar solvents, and by converting the capping group to a citrate, they also form transparent suspensions in an aqueous solution. The as-synthesized SnO2 nanoparticles are of the pure cassiterite structure, while those of the CeO2 are of the calcium fluoride structure. X-Ray photoelectron spectroscopy (XPS) analysis indicates that the oxidation state of the Sn and Ce are close to +4. The band gaps of SnO2 and CeO2 nanoparticles are 4.14 and 3.68 eV, respectively, which are relatively large values because of the quantum size effect.

  通过2-乙基己酸络合物非水解溶剂热反应，无需添加额外的表面活性剂，即可形成2.4 nm大小的SnO2和2.6 nm大小的CeO2单分散纳米粒子。在合成过程中，来自中心金属的离解2-乙基己酸盐充当封端剂，从而控制纳米粒子的尺寸并抑制粒子间的聚集。制备的纳米粒子可溶于非极性溶剂，通过将封端基转化为柠檬酸盐，它们在水溶液中也能形成透明的悬浮液。合成的SnO2纳米粒子具有纯锡石结构，而 纳米粒子具有氟化钙结构。X射线光电子能谱（XPS）分析表明，Sn和Ce的氧化态接近+4。由于量子尺寸效应，SnO2和 纳米粒子的带隙分别为4.14和3.68 eV，数值相对较大。
• Structural and vibrational properties of nanocrystals
  作者：I.O. Mazali、B.C. Viana、O.L. Alves、J. Mendes Filho、A.G. Souza Filho

  DOI：10.1016/j.jpcs.2007.02.001

  日期：2007.4

  In this paper, we report the synthesis and characterization of CeO2 nanocrystals dispersed into a porous Vycor glass. We analyzed the nanocrystal structural properties using X-ray diffraction, Raman spectroscopy and transmission electron microscopy (TEM). The size of the nanocrystals is controlled via the mass increment only and the matrix plays an important role in controlling the nanocrystal size because it prevents the coalescence process. Coalescence control is attributed to nanocrystal dispersion into the host and to the terminal bonds present in the pores that act as anchors, thus resulting in a low diffusion of the nanocrystals through the porous network. We have determined a Raman frequency dependence on the nanocrystal size which is quite useful for a quick check of the size of CeO, nanocrystals. (c) 2007 Elsevier Ltd. All rights reserved.