Nickel--thorium (2/1) | 12423-53-9

• 分子结构分类: 无机化合物 - 均相金属化合物 - 金属间过渡金属化合物
• 英文名称: Nickel--thorium (2/1)
• 英文别名: nickel;thorium
• CAS: 12423-53-9
• 化学式: Ni₂Th
• 分子量: 349.418
• InChiKey: JASLYMONTKOVAZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.01
• 重原子数：
  3
• 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：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  Nickel--thorium (2/1) 在 air 作用下， 生成
  参考文献：
  名称：

  Partial oxidation of methane over bimetallic copper- and nickel-actinide oxides (Th, U)

  摘要：

  The study of partial oxidation of methane (POM) over bimetallic nickel- or copper-actinide oxides was undertaken. Binary intermetallic compounds of the type AnNi(2) (An = Th, U) and ThCu2 were used as precursors and the products (2NiO UO3, 2NiO ThO2 and 2CuO ThO2) characterized by means of Xray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy and temperature-programmed reduction. The catalysts were active and selective for the conversion of methane to H-2 and CO and stable for a period of time of approximate to 18 h on stream. The nickel catalysts were more active and selective than the copper catalyst and, under the same conditions, show a catalytic behaviour comparable to that of a platinum commercial catalyst, 5 wt% Pt/Al2O3 The catalytic activity increases when uranium replaces thorium and the selectivity of this type of materials is clearly different from that of single metal oxides and/or mechanical mixtures. The good catalytic behaviour of the bimetallic copper- and nickel-actinide oxides was attributed to an unusual interaction between copper or nickel oxide and the actinide oxide phase as showed by H-2-TPR, XPS and Raman analysis of the catalysts before and after reaction. (C) 2010 Elsevier B V. All rights reserved.

  DOI：

  10.1016/j.jallcom.2010.03.021
• 作为产物：
  描述：

  镍 、 钍 生成 Nickel--thorium (2/1)
  参考文献：
  名称：

  or-镍金属间催化剂的表面表征

  摘要：

  用于化学分析的电子光谱（ESCA），俄歇电子能谱（AES）和离子散射光谱（ISS）已用于研究一系列or镍合金（Th 7 Ni 3，ThNi，ThNi 2，ThNi 5），两者未经处理并用不同的气体（O 2，空气，COH2）处理。ESCA结果表明，未经处理的合金表面相对于整体而言镍贫乏。用合成气（COH2），O 2处理这些合金或空气会导致金属间化合物分解为NiThO2或NiOThO2。在所有情况下，观察到Ni在反应后偏析到表面。Ni表面偏析的程度不受不同气体处理的影响，但随不同合金的不同而不同。通过具有不同采样深度的ESCA，AES和ISS检查并比较了相对Ni信号强度和大量Ni含量之间的关系。具有高表面浓度的Ni的催化剂通常显示出对于甲烷化反应的高活性。Ni表面浓度与Th 7 Ni 3和ThNi 5催化活性的比较表明它们在数学上不相关。这种不相容性可以通过存在不同的活性位点，海绵状模型或同时存在两者来解释。

  DOI：

  10.1016/0021-9517(84)90046-0

文献信息

• Surface characterization of thorium-nickel intermetallic catalysts
  作者：T DANG

  DOI：10.1016/0021-9517(84)90046-0

  日期：1984.7

  ESCA results indicate that the surfaces of untreated alloys are Ni-poor with respect to the bulk. Treatment of these alloys with synthesis gas (COH2), O2, or air results in decomposition of the intermetallic into NiThO2 or NiOThO2. In all cases Ni was observed to segregate to the surface after reaction. The degree of Ni surface segregation is not affected by different gas treatments but varies for different

  用于化学分析的电子光谱（ESCA），俄歇电子能谱（AES）和离子散射光谱（ISS）已用于研究一系列or镍合金（Th 7 Ni 3，ThNi，ThNi 2，ThNi 5），两者未经处理并用不同的气体（O 2，空气，COH2）处理。ESCA结果表明，未经处理的合金表面相对于整体而言镍贫乏。用合成气（COH2），O 2处理这些合金或空气会导致金属间化合物分解为NiThO2或NiOThO2。在所有情况下，观察到Ni在反应后偏析到表面。Ni表面偏析的程度不受不同气体处理的影响，但随不同合金的不同而不同。通过具有不同采样深度的ESCA，AES和ISS检查并比较了相对Ni信号强度和大量Ni含量之间的关系。具有高表面浓度的Ni的催化剂通常显示出对于甲烷化反应的高活性。Ni表面浓度与Th 7 Ni 3和ThNi 5催化活性的比较表明它们在数学上不相关。这种不相容性可以通过存在不同的活性位点，海绵状模型或同时存在两者来解释。
• Actinide heterobimetallic oxides (Th, U): reduction studies
  作者：Joaquim Branco、Catarina de Jesus Dias、António Pereira Gonçalves、Teresa Almeida Gasche、António Pires de Matos

  DOI：10.1016/j.tca.2003.11.060

  日期：2004.10
• Formation and crystal structure of ThNi2Dx
  作者：A.F. Andresen、H. Fjellvåg、A.J. Maeland

  DOI：10.1016/0022-5088(84)90354-0

  日期：1984.11
• Partial oxidation of methane over bimetallic copper- and nickel-actinide oxides (Th, U)
  作者：Ana C. Ferreira、A.P. Gonçalves、T. Almeida Gasche、A.M. Ferraria、A.M. Botelho do Rego、M.R. Correia、A. Margarida Bola、J.B. Branco

  DOI：10.1016/j.jallcom.2010.03.021

  日期：2010.5

  The study of partial oxidation of methane (POM) over bimetallic nickel- or copper-actinide oxides was undertaken. Binary intermetallic compounds of the type AnNi(2) (An = Th, U) and ThCu2 were used as precursors and the products (2NiO UO3, 2NiO ThO2 and 2CuO ThO2) characterized by means of Xray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy and temperature-programmed reduction. The catalysts were active and selective for the conversion of methane to H-2 and CO and stable for a period of time of approximate to 18 h on stream. The nickel catalysts were more active and selective than the copper catalyst and, under the same conditions, show a catalytic behaviour comparable to that of a platinum commercial catalyst, 5 wt% Pt/Al2O3 The catalytic activity increases when uranium replaces thorium and the selectivity of this type of materials is clearly different from that of single metal oxides and/or mechanical mixtures. The good catalytic behaviour of the bimetallic copper- and nickel-actinide oxides was attributed to an unusual interaction between copper or nickel oxide and the actinide oxide phase as showed by H-2-TPR, XPS and Raman analysis of the catalysts before and after reaction. (C) 2010 Elsevier B V. All rights reserved.