hydrated zirconium hydroxide | 59271-57-7

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 过渡金属氧阴离子化合物
• 英文名称: hydrated zirconium hydroxide
• 英文别名: zirconium hydroxide；hydrous zirconium hydroxide；Zirconium(4+);tetrahydroxide;hydrate；zirconium(4+);tetrahydroxide;hydrate
• CAS: 59271-57-7
• 化学式: (x)H₂O*H₄O₄Zr
• 分子量: 177.27
• InChiKey: WIWFPCBMLUXFOG-UHFFFAOYSA-J

计算性质

• 辛醇/水分配系数(LogP)：
  -1.53
• 重原子数：
  6
• 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：
  5
• 氢给体数：
  5
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  hydrated zirconium hydroxide 以 neat (no solvent) 为溶剂， 生成 氢氧化锆
  参考文献：
  名称：

  温度调制差示扫描量热法中板状样品温度变化规律及温度滞后、热流、内能和有效比热变化规律的推导

  摘要：

  摘要 本文通过严格的数学推导，得出了温度调制差示扫描量热法(TMDSC)中板状样品的温度变化规律。得到的分析结果揭示了板状样品从初始平衡状态到稳态的总变化规律。利用该温度变化规律，推导并研究了板状样品的可逆和不可逆热流、温度滞后、内能和有效比热的变化规律。如果样品的热导率大到可以忽略样品内的温度梯度，在这种情况下，从我们 TMDSC 温度分布的基本方程导出的温度变化规律与当前的 TMDSC 理论相同。

  DOI：

  10.1016/s0040-6031(99)00143-4
• 作为产物：
  描述：

  zirconyl chloride octahydrate 在 NH₃ 作用下， 以 水 为溶剂， 生成 hydrated zirconium hydroxide
  参考文献：
  名称：

  Influence of the coordination on the catalytic properties of supported W catalysts

  摘要：

  Zirconia supported W catalysts were prepared using anionic exchange from a peroxo-tungstate solution and zirconium hydroxides of high surface areas. These solids contain about 20 wt% W and retain a surface area of about 120 m(2)/g after calcinations in air at 873 K, temperature at which their acidity is maximum. Raman spectroscopy shows the presence of tetrahedral W at low temperature, sintered to polytungstates by calcination at 873 K and WO3 at 973 K. These catalysts are active for the oxidation of dibenzothiophene by hydrogen peroxide. The solids containing tetrahedral W cations show higher activity than clusters of WO3. The reaction can be performed with good oxygen selectivity with H2O2 in 2-butanol as solvent, or in decane with tert-butylhydroperoxide as oxidizing agent. The catalysts can be recycled without loss of performances. (C) 2004 Elsevier Inc. All rights reserved.

  DOI：

  10.1016/j.jcat.2004.05.006

文献信息

• Synthesis of solid superacid catalyst with acid strength of H₀⩽–16.04
  作者：Makoto Hino、Kazushi Arata

  DOI：10.1039/c39800000851

  日期：——

  A solid superacid catalyst with an acid strength of H0⩽–16·04, which was active for reactions of propane and butane, was obtained by exposing Zr(OH)4, prepared by the hydrolyses of ZrOCl2 and ZrO(NO3)2, to 1 N H2SO4 and then calcining in air at 575–650 °C.

  通过暴露由ZrOCl 2和ZrO（NO 3）水解制得的Zr（OH）4，获得具有对丙烷和丁烷反应有活性的酸强度为H 0 04-16·04的固体超强酸催化剂。2至1 N H 2 SO 4，然后在575–650°C的空气中煅烧。
• Rate enhancement by Cu in Ni_xCu_1−x/ZrO₂ bimetallic catalysts for hydrodeoxygenation of stearic acid
  作者：Christoph Denk、Sebastian Foraita、Libor Kovarik、Kelsey Stoerzinger、Yue Liu、Eszter Baráth、Johannes A. Lercher

  DOI：10.1039/c9cy00181f

  日期：——

  The combination of Cu and Ni in bimetallic catalysts on ZrO₂, leads to a more efficient HDO of stearic acid.

  在ZrO2上，Cu和Ni的双金属催化剂的组合导致了更有效的硬脂酸加氢脱氧反应。
• Nanocrystalline Hydrous Zirconia from Zirconium Tungstate
  作者：Luciana M. Somavilla、Janete E. Zorzi、Giovanna Machado、Gustavo R. Ramos、Cintia L. G. de Amorim、Cláudio A. Perottoni

  DOI：10.1111/j.1551-2916.2011.04394.x

  日期：2011.8

  10 � 5 mbar, hydrous zirconia dehydrates reversibly. Further heating to 8501 and 10001C resulted in the formation of tetragonal and monoclinic zircon- ia, respectively. Some of the nanocrystalline hydrous zirconia produced from zirconium tungstate coalesced into transparent, nearly pore-free aggregates. The formation of these almost fully densified aggregates of hydrous zirconia, and the observed de-

  通过将钨酸锆 (a-ZrW2O8) 在沸腾的 1M NaOH 溶液中浸泡 5 小时，获得体积加权平均畴尺寸为 1.5 nm 的结晶水合氧化锆 (ZrO2 . 2H2O)。水合氧化锆颗粒的选区电子衍射图可以根据具有 5 1.463(4) A 和 c 5 2.535(6) A ˚ 的四方晶格进行索引，在 10 5 毫巴的真空下加热至 601C，水合氧化锆可逆脱水。进一步加热到 8501 和 10001C 分别导致四方晶和单斜氧化锆的形成。一些由钨酸锆生产的纳米晶水合氧化锆凝聚成透明、几乎无孔的聚集体。这些几乎完全致密的水合氧化锆聚集体的形成，以及在非常温和的条件下观察到的脱水，
• 10.1021/jacs.4c04719
  作者：Chang, Alison Sy-Min、Kascoutas, Melanie A.、Valentine, Quinn P.、How, Kiera I.、Thomas, Rachel M.、Cook, Amanda K.

  DOI：10.1021/jacs.4c04719

  日期：——

  comparing the state-of-the-art Ni and Pd isomerization catalysts reveals that the highest activity and selectivity is seen with the Ni/SZO300 system. The reactivity of Ni/SZO300, is not limited to alkene isomerization; it is also a competent catalyst for hydroalkenylation, hydroboration, and hydrosilylation, demonstrating the broad application of this heterogeneous catalyst.

  过渡金属催化的烯烃异构化是一种用于将烯烃安装到其原始位置远端的使能技术。由于其结构明确，均相催化剂可以进行微调以优化反应活性、立体选择性和位置选择性，但它们通常存在不稳定和不可回收性的问题。非均相催化剂通常具有很高的鲁棒性，但仍然缺乏活性位点特异性，并且难以通过结构修饰来合理改进。已知的用于烯烃异构化的单中心多相催化剂利用贵金属和定制的、昂贵的且合成强度高的载体。此外，它们通常具有中等的反应性，这激励我们开发一种多相催化剂，其活性位点由地球上丰富的元素制成的容易获得的化合物制成。先前的工作表明，Ni[P(OEt) 3 ] 4被 H 2 SO 4质子化后形成非常活跃的均相催化剂，产生 [Ni–H] +活性位点。这种催化剂非常活跃，但也很容易分解，这严重限制了它的实用性。在此，我们表明，通过使用固体酸（硫酸化氧化锆，SZO 300 ），不仅可以防止这种分解，而且可以保持高活性，提高选择性，并且
• Differences between Zirconium Hydroxide (Zr(OH)4·nH2O) and Hydrous Zirconia (ZrO2·nH2O)
  作者：Chuanyong Huang、Zilong Tang、Zhongtai Zhang

  DOI：10.1111/j.1151-2916.2001.tb00889.x

  日期：——

  Based on cause and effect rather than experiment data, zirconium hydroxide (Zr(OH)4·nH2O) is always considered as hydrous zirconia (ZrO2·nH2O). With the aid of nitric acid, XPS, XRD, XPF, and TGA, some differences between them have been confirmed. It is found that in contrast to zirconium hydroxide (the binding energy of zirconium = 183.6 eV), hydrous zirconia does not dissolve in nitric acid. The chemical properties of zirconium (181.8 eV) in hydrous zirconia are similar to those in zirconia (182.2 eV for the binding energy of zirconium), and the weight loss of hydrous zirconia is 21.5%, different from 32.19%, the weight loss of zirconium hydroxide. According to the experimental data, a structure for hydrous zirconia is proposed and then the different phenomena are explained.