三氧化二铈 | 11129-18-3

• 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
• 中文名称: 三氧化二铈
• 英文名称: Cerous oxide
• 英文别名: cerium(3+);oxygen(2-)
• CAS: 11129-18-3
• 化学式: Ce2O3
• 分子量: 328.23
• InChiKey: DRVWBEJJZZTIGJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.36
• 重原子数：
  5
• 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：
  3
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  草酸铵 、 三氯化铈 、 三氧化二铈 在 三草酸二铈 作用下， 以to obtain a starting material powder with a mean particle diameter of about 1 μm的产率得到三草酸二铈
  参考文献：
  名称：

  Method for manufacturing highly-crystallized oxide powder

  摘要：

  一种制造高结晶氧化物粉末的方法，其中通过喷嘴将至少含有一种金属元素和/或半金属元素的起始物质粉末，与载气一起喷入反应容器中，制备氧化物粉末；并在起始物质粉末以不高于10 g/L浓度的气相分散状态下，以高于其分解温度或反应温度且不低于氧化物的熔点（Tm/2）°C的温度加热。在上述方法中，可以使用分散机将起始物质粉末在喷入反应容器之前与载气混合和分散。该方法使用低成本和简单的生产设备，生产出高结晶度、高分散性和均匀粒径的氧化物粉末，不会引入杂质。

  公开号：

  US20040028592A1
• 作为产物：
  描述：

  Chloro hypochlorite;zirconium 、 氢化铈 (CeH3) 、 三氢化镧 以to form a weight ratio of 25 g of zirconium oxide, 12.5 g of cerium oxide, and 9.5 g of lanthanum oxide的产率得到Zirconium oxide
  参考文献：
  名称：

  Exhaust gas purifying catalyst

  摘要：

  一种废气净化催化剂，具有抗高温的三维结构，并涂覆有至少一种贵金属、耐火无机氧化物和含有铈和镧的氧化锆的催化活性成分，其中，含有铈和镧的氧化锆的晶体结构为氧化锆的四方晶体结构。

  公开号：

  US20020015674A1

文献信息

• Quasi-crystalline boehmites containing additives
  申请人：Stamires Dennis

  公开号：US20060096891A1

  公开（公告）日：2006-05-11

  The present invention pertains to a quasi-crystalline boehmite containing additive in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group of alkaline earth metals, alkaline metals, rare earth metals, transition metals, actinides, silicon, gallium, boron, titanium, and phosphorus. Said QCBs according to the invention may be prepared in several ways. In general, a quasi-crystalline boehmite precursor and an additive are converted to a quasi-crystalline boehmite containing the additive in a homogeneously dispersed state.

  本发明涉及一种均匀分散状态下含有添加剂的准晶体博姆石。适当的添加剂是含有碱土金属、碱金属、稀土金属、过渡金属、锕系元素、硅、镓、硼、钛和磷元素的化合物。根据本发明，所述QCBs可以通过多种方式制备。通常，准晶体博姆石前体和添加剂被转化为含有添加剂的准晶体博姆石，并且添加剂均匀分散在其中。
• Process for producing oxygen partial pressure detecting part of resistance oxygen sensor
  申请人：Izu Noriya

  公开号：US20060057292A1

  公开（公告）日：2006-03-16

  The present invention provides a method of manufacturing a porous thick film of an oxide that has extremely few cracks and can be satisfactorily used as an oxygen partial pressure detecting part of an oxygen sensor. The present invention relates to a method of manufacturing such a porous thick film as an oxygen partial pressure detecting part of a resistive oxygen sensor comprising taking a fine particle powder of an oxide containing cerium oxide as a raw material powder, preparing a paste containing the oxide, printing the paste onto a substrate by screen printing, calcining and sintering, the method comprising a step of carrying out heat treatment to effect particle growth from the average particle diameter of the raw material powder to a particle diameter less than the average particle diameter of the ultimately obtained thick film, a step of mixing the particle growth-effected powder with a solvent, a step of dispersing agglomerated particles in the solvent, a step of removing a precipitate, a step of evaporating off the solvent, and a step of mixing the resulting oxide with an organic binder to obtain the paste.

  本发明提供了一种制造氧化物多孔厚膜的方法，该方法具有极少裂纹，并且可以满意地用作氧传感器的氧分压检测部分。本发明涉及一种制造这样的氧分压检测部分的多孔厚膜的方法，作为电阻式氧传感器的一部分，包括采用含氧化铈的氧化物的细粒粉末作为原料粉末，制备含氧化物的浆料，通过丝网印刷将浆料印刷到基板上，经过煅烧和烧结，该方法包括一步，即进行热处理，使粒子从原料粉末的平均粒径增长到小于最终获得的厚膜的平均粒径的粒径，一步是将粒子增长效应的粉末与溶剂混合，一步是将凝聚的颗粒分散在溶剂中，一步是去除沉淀，一步是蒸发溶剂，一步是将得到的氧化物与有机粘合剂混合以获得浆料。
• METHODS OF POLISHING AN OBJECT USING SLURRY COMPOSITIONS
  申请人：Kim Sang-Kyun

  公开号：US20100003897A1

  公开（公告）日：2010-01-07

  In a slurry composition for chemical mechanical polishing, a method of preparing the slurry composition and a method of polishing an object using the slurry composition, the slurry composition includes a cerium oxide abrasive particle having a rare earth element other than cerium as a dopant, and an aqueous medium for dispersing the cerium oxide abrasive particle. The cerium oxide abrasive particle doped with the rare earth element may have an enhanced fracture strength as being compared with a pure cerium oxide abrasive particle, and also may reduce an amount of large or agglomerated particles and generation of a scratch on a polished surface of an object.

  在化学机械抛光的浆料组成中，提供了一种制备浆料组成和使用浆料组成抛光物体的方法。该浆料组成包括掺杂有铈以外的稀土元素的氧化铈磨料颗粒和用于分散氧化铈磨料颗粒的水介质。掺杂稀土元素的氧化铈磨料颗粒与纯氧化铈磨料颗粒相比具有增强的断裂强度，并且可以减少大颗粒或聚集颗粒的数量以及减少在抛光物体的表面上产生划痕的程度。
• ONE-POT PRODUCTION OF CARBAMATES USING SOLID CATALYSTS
  申请人：CORMA CANOS Avelino

  公开号：US20120053359A1

  公开（公告）日：2012-03-01

  The invention relates to the production of carbamates in a single reactor (one-pot) using solid catalysts, involving the reaction between at least one nitro compound, an organic carbonate of formula (OR)(OR′)C═O, a gas selected from hydrogen gas and a mixture of gases containing hydrogen and hydrogen precursor compounds, and a catalyst that has at least one metallic oxide and can also contain an element of groups 8, 9, 10 and 11 of the periodical table. The carbonates obtained can be transformed into their corresponding isocyanates.

  该发明涉及使用固体催化剂在单个反应器（一锅法）中生产氨基甲酸酯，包括至少一种硝基化合物、式为（OR）（OR′）C═O的有机碳酸酯、从氢气和含有氢和氢前体化合物混合气体中选择的气体以及具有至少一个金属氧化物和可以含有周期表8、9、10和11组元素的催化剂之间的反应。所得到的碳酸酯可以转化为其相应的异氰酸酯。
• One-pot production of carbamates using solid catalysts
  申请人：Corma Canós Avelino

  公开号：US08765993B2

  公开（公告）日：2014-07-01

  The invention relates to the production of carbamates in a single reactor (one-pot) using solid catalysts, involving the reaction between at least one nitro compound, an organic carbonate of formula (OR)(OR′)C═O, a gas selected from hydrogen gas and a mixture of gases containing hydrogen and hydrogen precursor compounds, and a catalyst that has at least one metallic oxide and can also contain an element of groups 8, 9, 10 and 11 of the periodical table. The carbonates obtained can be transformed into their corresponding isocyanates.

  本发明涉及使用固体催化剂在单个反应器（一锅法）中生产氨基甲酸酯，包括至少一种硝基化合物、式为（OR）（OR'）C═O的有机碳酸酯、氢气和含有氢气和氢前体化合物的混合气体之间的反应，并且催化剂至少含有一种金属氧化物，还可以含有8、9、10和11族元素。所得的碳酸酯可以转化为相应的异氰酸酯。