carbon doped titanium dioxide

• 分子结构分类: 有机化合物 - 有机盐 - 有机金属盐
• 英文名称: carbon doped titanium dioxide
• 英文别名: Methane;titanium;hydrate
• 化学式: COTi
• 分子量: 81.925
• InChiKey: CFVJTNQHRBOCGD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.19
• 重原子数：
  3
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  1
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  carbon doped titanium dioxide 以 neat (no solvent) 为溶剂， 生成 rutile
  参考文献：
  名称：

  Synthesis and properties of titanium glycolate Ti(OCH2CH2O)2

  摘要：

  A new efficient method for the synthesis of extended micro-and nano-sized crystals (whiskers, fibers) of titanium glycolate Ti(OCH2CH2O)(2) has been suggested. The method implies the reaction of hydrated titanium dioxide with ethylene glycol on heating in air. Thermolysis of Ti(OCH2CH2O)(2) in air gives titanium dioxide as anatase (400-500 degrees C) and rutile (T > 700 degrees C), the morphology of titanium glycolate crystals being inherited by the oxide. The pseudocrystals of the thermolysis product in an inert gas medium (T = 500-950 degrees C) represent aglomeration of nano-sized titanium dioxide particles and amorphous carbon. At temperatures up to 1300 degrees C, the formation of the TiO2-x C (x) phase with a rutile structure is probable. In a wet air environment, titanium glycolate is partially hydrolyzed to give TiOx(OCH2CH2O)(2-2x) (OH)(2x) center dot xH(2)O (0 <= x <= 1) and on keeping in water at room temperature, ethylene glycol is completely displaced from the crystals. This process is also not accompanied by changes in the particle morphology.

  DOI：

  10.1134/s0036023608070152
• 作为产物：
  描述：

  titanium(IV) glycolate 以 neat (no solvent) 为溶剂， 生成 carbon doped titanium dioxide
  参考文献：
  名称：

  Synthesis and photocatalytic activity of Ti[1 − x]V x O[2 − y]C y whiskers in hydroquinone oxidation in aqueous solutions

  摘要：

  Ti1-x V (x) O2-y C (y) (0 a parts per thousand currency sign x a parts per thousand currency sign 0.10 and x = 0.50) whiskers having the anatase structure were synthesized via thermolysis of vanadium-doped titanium glycolate of composition Ti1-x V (x) (OCH2CH2O)(2) (0 a parts per thousand currency sign x a parts per thousand currency sign 0.10 and x = 0.50). The starting reagents used to prepare Ti1-x V (x) (OCH2CH2O)(2) were mixtures of coprecipitated titanium and vanadyl hydroxides, which were heated in ethylene glycol at T a parts per thousand currency sign 200A degrees C: (1 - x)TiO(OH)(2) + xVO(OH)(2) + 2HOCH(2)CH(2)OH = Ti1-x V (x) (OCH2CH2O)(2) + 3H(2)Oa dagger. Thermolysis of vanadium-doped titanium glycolate in various gas media over a wide range of temperatures is useful to prepare titania samples doped with both vanadium and carbon to form a phase of the general composition Ti1 - x V (x) O2 - y C (y) whiskers prepared by thermolyzing Ti1 - x V (x) (OCH2CH2O)(2) in air at 450A degrees C were found to have a high photocatalytic activity in hydroquinone oxidation in aqueous solutions irradiated in the UV spectral range; the photocatalyst's activity increases with increasing vanadium concentration. When hydroquinone was irradiated in the blue, the maximal catalytic activity was discovered in a sample of composition Ti0.50V0.50O2-y C (y) . Quantum-chemical calculations support experimental data that the double doping of titania (Ti1-x V (x) O2-y C (y) ) enhances its photocatalytic activity compared to undoped anatase or anatase doped in one sublattice: Ti1-x V (x) O-2 and TiO2-y C (y) .

  DOI：

  10.1134/s003602361008005x

文献信息

• Development of novel anode material for intermediate temperature SOFC (IT-SOFC)
  作者：Amit Sinha、David N. Miller、John T. S. Irvine

  DOI：10.1039/c6ta03404g

  日期：——

  development of rare-earth free SOFC materials. The previous research works on electrode-supported intermediate temperature solid oxide fuel cells (IT-SOFCs) indicate that the anode supported concept provides better electro-chemical performance than the cathode supported one. Therefore, the total material cost of anode-supported SOFC is largely governed by the cost of the anode material. The objective of the

  固体氧化物燃料电池（SOFC）提供了一种清洁技术，可高效地从氢或碳氢化合物基燃料中电化学产生电能和热量。SOFC晶胞的所有活性成分均由稀土或低丰度元素组成。稀土成本的增加可能会损害基于SOFC的技术的商业化前景。因此，应将更多的科学努力集中在开发不含稀土的SOFC材料上。先前对电极支撑的中温固体氧化物燃料电池（IT-SOFC）的研究表明，阳极支撑的概念比阴极支撑的概念具有更好的电化学性能。因此，阳极支撑的SOFC的总材料成本主要由阳极材料的成本决定。因此，本研究的目的是开发用于IT-SOFC的无稀土阳极材料。本工作设想将碳氧化钛作为中温固体氧化物燃料电池可能的无稀土阳极材料的应用。碳氧化钛样品（TiO通过将TiO和TiC粉末在1500°C的真空下反应烧结5 h来制备x C 1- x，x= 0.2–0.8）。对TiO x C 1- x（x= 0.2-0.8）进行了有关氧化和还原环境下相纯度和
• Studies on the crystal structure, magnetic and conductivity properties of titanium oxycarbide solid solution (TiO_1−xC_x)
  作者：David N. Miller、Abdul K. Azad、Heloise Delpouve、Lucille Quazuguel、Jun Zhou、Amit Sinha、Philip Wormald、John T. S. Irvine

  DOI：10.1039/c6ta00042h

  日期：——

  sublattices, these two phases actually form a complete solid solution. In the present investigation, we carefully characterise this titanium oxycarbide solid solution, reporting on the crystal structure, magnetic and electronic conduction properties. Titanium oxycarbide powders (TiO1−xCx with x = 0 ≤ x ≤ 1) have been prepared by solid state reactions of TiO and TiC powder under controlled environments

  钛氧化物和碳化物因其高电导率和良好的稳定性而经常被认为是能量转换和存储设备中的电极材料。一氧化钛和碳化钛的结构都可以被描述为岩盐，分别具有相同的立方密堆积的钛亚晶格，其中氧和碳分别占据八面体间隙；然而，氧化物的特征是两个亚晶格上都存在大量缺陷，而碳化物是化学计量的，可能被认为是间隙金属。尽管预计氧化物和碳化物亚晶格的性质会非常不同，但这两个相实际上形成了完整的固溶体。在本研究中，我们仔细表征了该碳氧化钛固溶体的特征，并报告了其晶体结构，磁和电子传导特性。碳氧化钛粉（TiO1- X Ç X与X = 0≤ X≤1）是通过在受控环境中，高温下TiO和TiC粉末进行固态反应而制备的。X射线衍射和比重瓶的比重密度测量表明，随着碳氧化物晶格中碳含量的增加，碳氧化钛的晶体结构逐渐从含TiO的岩石盐结构的空位过渡到完全占据的TiC。已经发现，碳氧化物晶体的晶格参数随碳含量的变化是非线性的，这可以归因于金属
• The Effect of Surface Oxides During Hot Pressing of TiB₂
  作者：Morten Sundheim Jensen、Mari-Ann Einarsrud、Tor Grande

  DOI：10.1111/j.1551-2916.2009.02923.x

  日期：2009.3

  Hot pressing of TiB2 has been investigated with particular emphasis on the evolution of secondary phases originating from the initial surface oxide layer on the TiB2 powders. Carbothermal reduction of the surface oxides during sintering was also investigated by adding carbon to the TiB2 powder. TiO1−xCx was shown to be the main secondary phase in hot‐pressed TiB2, and carbon was shown to strongly influence on sintering process and the amount, composition and distribution of the secondary phase TiO1−xCx. The formation of TiO1−xCx is discussed in relation to volatile boron oxide, which reacts with the graphite die to produce CO gas, which further may cause transport of carbon into TiB2 during sintering before pore closure. Finally it was demonstrated that the density could be controlled by addition of carbon to the TiB2 powder.

  钛化硼（TiB₂）的热压工艺及其相关研究。该研究特别关注了TiB₂粉末初始表面氧化层所衍生的次生相的演变情况，并通过在TiB₂粉末中添加碳，探讨了烧结过程中表面氧化层的碳热还原过程。研究表明，TiO₁−ₓCₓ是热压TiB₂中的主要次生相，而碳的添加对烧结过程及次生相TiO₁−ₓCₓ的数量、组成和分布具有显著影响。关于TiO₁−ₓCₓ的形成，研究讨论了其与挥发性硼氧化物的关系。挥发性硼氧化物与石墨模具发生反应生成CO气体，而在烧结过程中，CO气体可能进一步携带碳迁移到未封闭孔隙的TiB₂粉末中。最后，研究还表明，通过在TiB₂粉末中添加碳，可以对材料的密度进行调控。
• Preparation of titanium carbide nanowires for application in electromagnetic wave absorption
  作者：Xiaoyan Yuan、Laifei Cheng、Luo Kong、Xiaowei Yin、Litong Zhang

  DOI：10.1016/j.jallcom.2014.01.022

  日期：2014.5

  TiC nanowires were synthesized by chloride-assisted carbothermal reaction, using sucrose, TiO2 and NaCl as precursors and Ni(NO3)(2)center dot 6H(2)O as a catalyst. The TiC nanowires have specific surface areas of 186.7 m(2) g (1) with a diameter of 200-400 nm and length of dozens micrometers. The hybrids of TiC nano-wires/paraffin exhibited distinct electromagnetic wave absorbing ability in X-band (8.2-12.4 GHz). The optimal reflection loss (RL) of -51 dB at 11.8 GHz and the bandwidth of 3.0 GHz (RL < -10 dB) was achieved when the thickness is 1.7 mm. The optimal reflection loss and matching thickness were determined by the impedance match and quarter-wavelength law. (C) 2014 Elsevier B. V. All rights reserved.
• Lyubimov, V. D.; Alyamovskii, S. I.; Shveikin, G. P., Russian Journal of Inorganic Chemistry, 1981, vol. 26, p. 1243 - 1247
  作者：Lyubimov, V. D.、Alyamovskii, S. I.、Shveikin, G. P.

  DOI：——

  日期：——