vanadyl ethylene glycolate | 577771-50-7

• 分子结构分类: 有机化合物 - 有机金属化合物
• 英文名称: vanadyl ethylene glycolate
• CAS: 577771-50-7
• 化学式: C₂H₄O₂*OV
• 分子量: 126.993
• InChiKey: BQFBGJIZPOENEC-UHFFFAOYSA-N

反应信息

• 作为反应物：
  描述：

  vanadyl ethylene glycolate 反应 15.0h， 生成 vanadium(IV) oxide
  参考文献：
  名称：

  通过氧化钒乙二醇酯分解合成和表征微/纳米级 VO2(M)

  摘要：

  得益于自制的动态真空系统，完全结晶的 VO 2 (M)在高温 (> 500 °C) 下乙烯乙醇酸氧钒 (VEG) 分解和 VO 2结晶的合并步骤中成功合成。在整个过程中，钒价（+4）保持良好，VEG微观结构对最终产品的尺寸和形状起着重要作用。最后，建议的路线似乎非常适合大规模生产 VO 2纳米颗粒。

  DOI：

  10.1021/acs.inorgchem.1c01786
• 作为产物：
  描述：

  ammonium vanadate 以 乙二醇 为溶剂， 生成 vanadyl ethylene glycolate
  参考文献：
  名称：

  Two-Step Synthesis of VO₂ (M) with Tuned Crystallinity

  摘要：

  Highly crystallized monoclinic vanadium dioxide, VO2 (M), is successfully synthesized by a two-step thermal treatment: thermolysis of vanadyl ethylene glycolate (VEG) and postannealing of the poorly crystallized VO2 powder. In the first thermolysis step, the decomposition of VEG at 300 degrees C is investigated by X-ray diffraction and scanning electron microscopy (SEM). A poorly crystallized VO2 powder is obtained at a strict time of 3 min, and it is found that the residual carbon content in the powder played a critical role in the post crystallization of VO2 (M). After postannealing at 500 and 700 degrees C in an oxygen-free atmosphere, VO2 particles of various morphologies, of which the crystallite size increases with increasing temperature, are observed by SEM and transmission electron microscopy. The weight percent of crystalline VO2, calculated using the Fullprof program, increases from 44% to 79% and 100% after postannealing. The improved crystallinity leads to an improvement in metal-insulator transition behaviors demonstrated by sharper and more intense differential scanning calorimetry peaks. Moreover, V2O3 and V2O5 with novel and particular microstructures are also successfully prepared with a similar two-step method using postannealing treatment under reductive or oxidizing atmospheres, respectively.

  DOI：

  10.1021/acs.inorgchem.8b00753

文献信息

• Carbon-reduction as an easy route for the synthesis of VO₂ (M1) and further Al, Ti doping
  作者：Shian Guan、Manuel Gaudon、Mélanie Souquet-Basiège、Oudomsack Viraphong、Nicolas Penin、Aline Rougier

  DOI：10.1039/c8dt04914a

  日期：——

  distribution and highly crystallized powders. High purity VO2 (M1) leads to strong physical properties illustrated by a high latent energy (∼55 J g−1) during the phase transition obtained from DSC as well as high resistivity changes. In addition, with this method, dopants such as Ti4+ or Al3+ can be successfully introduced into VO2 (M1) thanks to the preparation of Al or Ti-doped nano-V2O5 by co-precipitation

  提出了一种低成本，简便的合成高度结晶的VO 2（M1）颗粒的方法，该方法使用炭黑作为还原剂与V 2 O 5纳米粉混合，比较了两种用于热活化的真空系统。在密封的真空系统中，在还原的第一步中会生成CO气体，并继续还原新生的VO 2，直到将所有V（+4）还原为V（+3）为止，从而形成V 2 O 3。在1000°C下。与此相反，在动态真空系统，CO气体通过只要它产生泵送排出，导致形成纯的VO 2在高温下（M1）（即在范围700℃≤ Ť≤1000°C）。每个样品的碳含量（由CHNS确定）与合成条件（即温度和真空系统的类型）的演变关系证实，可以将V（+5）转换为V（+4）或V（+3）被控制。两种合成的VO 2（M1）在700°C和1000°C下的形貌和晶体结构表征表明，可以将微晶尺寸从1.8调整到大于5μm，具有均匀的尺寸分布和高度结晶的粉末。高纯度VO 2（M1）导致强大的物理性能，高潜能（〜55 J
• Synthesis, surface group modification of 3D MnV2O6 nanostructures and adsorption effect on Rhodamine B
  作者：Wanqun Zhang、Lei Shi、Kaibin Tang、Zhongping Liu

  DOI：10.1016/j.materresbull.2012.03.038

  日期：2012.7

  process of 3D architectures of MnV2O6 by self-assembly of nanobelts was followed by field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD). The consecutive processes of vanadyl ethylene glycolate and benzoyl peroxide assisted formation of layered structure Mn0.5V2O5·nH2O, growth of aligned MnV2O6 nanobelts, and oriented assembly were proposed for the growth mechanism. The band

  摘要 通过以乙二醇氧钒为前驱体的制备方法，成功地大量制备了高度均匀的氧官能团（COO）修饰的3D MnV2O6纳米结构。MnV2O6 纳米带和纳米棒的生长和自组装可以很容易地通过添加剂种类和数量进行调整，从而为最终产品带来不同的形态和尺寸。重点关注结构调节，通过场发射扫描电子显微镜（FE-SEM）和 X 射线衍射（XRD）跟踪纳米带自组装 MnV2O6 3D 结构的形成过程。乙二醇氧钒和过氧化苯甲酰的连续过程辅助层状结构Mn0.5V2O5·nH2O的形成，排列的MnV2O6纳米带的生长，和定向组装被提出用于生长机制。还研究了带隙与不同形态的关系。这些具有不同形态的 MnV2O6 的光学表征显示直接带隙能量为 1.8-1.95 eV。通过在水溶液中去除罗丹明B的实验研究了不同条件下合成的3D MnV2O6纳米结构的吸附性能，用30 g L-1过氧化苯甲酰合成的3D纳米结构对罗丹明B具有良好的吸附能力。
• A cost-effective method to fabricate VO2 (M) nanoparticles and films with excellent thermochromic properties
  作者：Hua Zhang、Xiudi Xiao、Xuanming Lu、Guanqi Chai、Yaoming Sun、Yongjun Zhan、Gang Xu

  DOI：10.1016/j.jallcom.2015.01.277

  日期：2015.7

  In this paper, high crystallinity and pure phase VO2 (M) powder is synthesized by a novel and facile method. Aiding by additional manual grinding and etching process, 22 nm high-quality VO2 (M) nanoparticles can be obtained. The structure and properties of the VO2 (M) particles were characterized by X-ray diffraction analysis, transmission electron microscopy, differential scanning calorimetry and UV-vis-NIR spectrophotometer. After mixing VO2 (M) nanoparticles with transparent polymer, thin films prepared by grinded VO2 nanoparticles show excellent thermochromic properties. The solar modulation ability is up to 12.4% with luminous transmittance of 62.7%. Moreover, The haze of films prepared by grinded VO2 (M) nanoparticles is down to 1.9%, which is far less than that of films prepared by original VO2 (Haze = 8.5%) and etched VO2 particles (Haze = 4.6%). Dramatical improvement of thermochromic property and definition indicate that it is a promising method to prepare large-scale VO2 nanoparticles and cost-effective smart window. (C) 2015 Elsevier B.V. All rights reserved.
• A Facile Fabrication of VO₂(A) Micro-nanostructures with Controlled Shape and Its Electrochemical Behavior in Lithium Ion Batteries
  作者：Wanqun Zhang、Lei Shi、Kaibin Tang、Yang Yu

  DOI：10.1246/cl.2012.104

  日期：2012.1.5

  VO2(A) micro-nanostructures have been synthesized via a facile hydrothermal method by hydrolysis of oxidovandium(2+) ethylene glycolate in malonic acid solution. The novel morphologies of VO2(A) could be readily tuned by altering the concentrations of malonic acid and reaction temperature. It is revealed that malonic acid played an important role as a structure directing agent helping the alternative formation of VO2(A). Furthermore, their electrochemical properties were investigated, which reveal that the as-prepared VO2(A) nanorods exhibit a relatively higher first discharge capacity than other VO2(A) morphologies.