silver copper | 12249-45-5

• 分子结构分类: 无机化合物 - 均相金属化合物 - 均相过渡金属化合物
• 英文名称: silver copper
• 英文别名: copper-silver；Silver-copper；copper;silver
• CAS: 12249-45-5
• 化学式: AgCu
• 分子量: 171.414
• InChiKey: NEIHULKJZQTQKJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.01
• 重原子数：
  2
• 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：

  silver copper 以 neat (no solvent) 为溶剂， 生成 copper;silver
  参考文献：
  名称：

  Resonant two‐photon ionization spectroscopy of coinage metal trimers: Cu₂Ag, Cu₂Au, and CuAgAu

  摘要：

  The jet-cooled coinage metal triatomic molecules Cu2Ag, Cu2Au, and CuAgAu have been investigated using resonant two-photon ionization spectroscopy. One band system, labeled as the ÖX̃ system, has been observed for each species, with origin bands at 13 188, 17 217, and 17 470 cm−1, respectively. Vibrational progressions have been assigned and vibrational constants have been extracted using a linear least-squares fitting procedure. For Cu2Ag, 47 vibrational bands have been assigned within the ÖX̃ system. The upper states of these bands derive from combinations of two symmetric (a1) and one antisymmetric (b2) mode in the C2v point group. For the ÖX̃ system of Cu2Au, only seven vibrational bands have been observed, all occurring within a 500 cm−1 range. Lifetime measurements for the observed vibrational levels support the possibility that predissociation may be occurring in the à excited state of Cu2Au and this may be limiting the number of vibrational levels observed within this state. Finally, in the case of CuAgAu, 92 vibrational bands have been assigned, corresponding to excitations of three totally symmetric (a′) vibrational modes in the Cs point group. For this molecule, a complete set of vibrational frequencies (ωi) and anharmonicities (xij) have been obtained for the excited à state. In addition, the observation of weak hot bands in the spectrum permits the three vibrational modes of the X̃ ground state to be characterized by ν1=222.83±0.29, ν2=153.27±0.22, and ν3=103.90±0.28 cm−1 for 63Cu107Ag197Au (1σ error limits).

  DOI：

  10.1063/1.461212
• 作为产物：
  描述：

  silver nitrate 、 copper acetylacetonate 在 油胺 、 油酸 、 十八碳烯 作用下， 生成 silver copper
  参考文献：
  名称：

  Constructing Efficient CuAg Nanoalloys on Ce_0.90In_0.10O_δ for Methanol Deep Oxidation Catalysis at Low Temperature

  摘要：

  So far, it is still extremely challenging to develop an efficient catalyst for deep oxidation of methanol at low temperature. Herein, we report the construction of the highly dispersed CuAg alloy on the surface of Ce_0.90In_0.10O_δ nanorods support for catalyzing methanol deep oxidation. The composition, structure and properties of catalysts were characterized by X‐ray diffraction (XRD), transmission electron microscopy (TEM), ultraviolet‐visible (UV‐vis) spectroscopy and X‐ray photoelectron spectroscopy (XPS). The results show that the Cu_xAg_100‐x/Ce_0.90In_0.10O_δ alloy catalysts exhibit superior catalytic activity and stability compared to pure Ag/Ce_0.90I_n0.10O_δ, with the highest activity observed for Cu₄₀Ag₆₀/Ce_0.90In_0.10O_δ, accompanied by the light‐off temperature (T₅₀) and full conversion temperature (T₉₀) of 115 and 145 °C, respectively. This is attributed to the synergistic effect of CuAg alloy, which results in electron transfer, generating more Ag⁰, and enhanced interaction between CuAg alloy and the support, leading to increased Ce³⁺ content and higher oxygen vacancy concentration. This work successfully applies CuAg alloy catalysts in thermo‐catalytic reaction, offering promising prospects for CuAg alloy catalysts in the methanol deep oxidation.

  DOI：

  10.1002/cplu.202300740
• 作为试剂：
  描述：

  methane 在 silver copper 、 氨 、 氧气 作用下， 生成 乌洛托品
  参考文献：
  名称：

  DE357742

  摘要：

  公开号：

文献信息

• Synergistic effect in bimetallic copper–silver (Cu_xAg) nanoparticles enhances silicon conversion in Rochow reaction
  作者：Zailei Zhang、Yongjun Ji、Jing Li、Ziyi Zhong、Fabing Su

  DOI：10.1039/c5ra04575d

  日期：——

  The prepared bimetallic Cu_xAg nanoparticles exhibit a better silicon conversion for the Rochow reaction than monometallic Cu and Ag nanoparticles with the synergistic effect.

  经过处理的双金属Cu_xAg纳米颗粒在Rochow反应中表现出比单金属Cu和Ag纳米颗粒更好的硅转化率，具有协同效应。
• Implications of Surface Strain for Enhanced Carbon Dioxide Reduction on Copper-Silver Alloys
  作者：Amanuel Hailu、Scott K. Shaw

  DOI：10.1149/1945-7111/abaf74

  日期：——

  renewable energy is a promising route to a sustainable economy. In this work we present results from the electrochemical reduction of carbon dioxide on copper/silver alloy electrodes alongside pure copper and pure silver in acetonitrile-water electrolyte mixtures. EIS measurements show that the copper/silver alloys exhibit lower charge-transfer resistance when compared to the pure metal electrodes. Reduced

  使用可再生能源将大气中的二氧化碳电化学还原为增值化学品和燃料是实现可持续经济的有前途的途径。在这项工作中，我们提出了电化学还原铜/银合金电极上的二氧化碳以及乙腈-水电解质混合物中的纯铜和纯银的结果。EIS测量表明，与纯金属电极相比，铜/银合金具有较低的电荷转移电阻。简化的产品分析表明，一氧化碳（CO）是纯Ag，含10％Cu的合金和含10％Ag的合金的法拉第效率超过60％的主要产品。甲酸盐是主要的还原产品，接近50:50（Cu：Ag）的比例，法拉第效率超过30％。
• Click chemistry in carbon nanoreactors
  作者：Graham A. Rance、William A. Solomonsz、Andrei N. Khlobystov

  DOI：10.1039/c2cc38035h

  日期：——

  Copper-nanoparticle catalytic centres anchored at the graphitic step-edges within hollow carbon nanoreactors exhibit superior activity and stability in cycloaddition reactions as compared to catalytic centres outside the nanoreactors. Nanoscale confinement enables efficient recycling of the catalyst in preparative-scale synthesis without significant changes in activity.

  与纳米反应器外的催化中心相比，锚定在中空碳纳米反应器石墨阶梯边缘的铜纳米粒子催化中心在环化反应中表现出更高的活性和稳定性。纳米尺度的限制使催化剂在制备规模的合成中能够有效地循环使用，而不会明显改变活性。
• Effect of chemical corrosion and alloying on the catalytic activity of 18 carat gold for the electro-oxidation of HCOOH
  作者：Kechang Shen、Hongtu Sun、Kangqiang Li、Guihang Liang、Qingtao Gong、Zhicheng Yan、Kibuem Kim、Weimin Wang

  DOI：10.1016/j.jallcom.2020.158080

  日期：2021.5

  Abstract The catalytic activity of original and corroded Au54-0.7xCu28-0.3xAg18-2x(Ni2Zn)x (x = 0, 3, 6 and 9) alloys, together with their structure, hardness and morphology, are studied using various techniques. Alloying improves the hardness of the samples. There are some Ag/AgCl species on the surfaces of corroded samples. Chemical corrosion changes the surface orientation of the Au-rich solid solution

  摘要 使用各种技术研究了原始和腐蚀的 Au54-0.7xCu28-0.3xAg18-2x(Ni2Zn)x (x = 0、3、6 和 9) 合金的催化活性及其结构、硬度和形貌。合金化提高了样品的硬度。在腐蚀样品的表面上有一些 Ag/AgCl 物种。化学腐蚀改变了富金固溶体的表面取向，这与金原子的重新排列以适应表面缺陷有关。表面取向的变化和 Ag/AgCl 的存在增加了样品对 HCOOH 电氧化的催化活性。
• Decrypting the Controlled Product Selectivity over Ag−Cu Bimetallic Surface Alloys for Electrochemical CO ₂ Reduction
  作者：Daixing Wei、Yiqing Wang、Chung‐Li Dong、Zhengqi Zhang、Xinyu Wang、Yu‐Cheng Huang、Yuchuan Shi、Xiaoli Zhao、Jialin Wang、Ran Long、Yujie Xiong、Fan Dong、Mingtao Li、Shaohua Shen

  DOI：10.1002/anie.202217369

  日期：——

  Ag−Cu surface alloys, as electrocatalysts for CO2 reduction, demonstrated controllable product selectivity with their surface compositions and the applied potentials rationally tuned. The working mechanism of these catalysts was revealed by in situ spectral investigations and theoretical calculations. A predominant region map describing the thermodynamic predominance of *CO involved subsequent reactions

  Ag-Cu 表面合金作为 CO 2还原的电催化剂，通过其表面组成和合理调整的施加电位展示了可控的产物选择性。通过原位光谱研究和理论计算揭示了这些催化剂的工作机理。描述*CO 的热力学优势的主要区域图涉及后续反应，可作为设计催化剂 CO 2还原以实现增值产品的可靠指导。