铂-铑合金 | 11107-71-4

• 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
• 中文名称: 铂-铑合金
• 中文别名: 网状铂铑合金
• 英文名称: platinum-rhodium
• 英文别名: Platinum rhodium；platinum;rhodium
• CAS: 11107-71-4
• 化学式: PtRh
• 分子量: 297.986
• InChiKey: PXXKQOPKNFECSZ-UHFFFAOYSA-N

物化性质

• 暴露限值：
  ACGIH: TWA 1 mg/m3OSHA: TWA 0.002 mg/m3NIOSH: TWA 1 mg/m3

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

安全信息

• WGK Germany：
  3

反应信息

• 作为反应物：
  描述：

  lithium 、 硼烷 、 铂-铑合金 以 neat (no solvent, solid phase) 为溶剂， 生成
  参考文献：
  名称：

  Synthesis, structure and properties of Li2Rh3B2

  摘要：

  Li2Rh3B2 has been synthesized Lit 1000 degrees C from a stoichiometric mix of rhodium and boron and an excess of lithium. Li2Rh3B2 crystallizes in the orthorhombic space group Pbam (no. 55, Z = 2) with room temperature lattice constants a = 5.7712(1) A, b = 9.4377(2) A, c = 2.8301(1) A and cell volume 154.149(6) A(3). The structure was solved from single crystal X-ray diffraction yielding the final R indices (all data) R1 = 2.8% and wR2 = 4.7%. The structure is a distortion of the CeCo3B2 structure type, containing a network of Rh6B trigonal prisms and short Li-Li contacts of 2.28(2) A. Li2Rh3B2 is a diamagnetic metal with a room temperature resistivity of 19 mu Omega cm, as determined by magnetic susceptibility and single crystal transport measurements. The measured diamagnetism and electronic structure calculations show that Li2Rh3B2 contains rhodium in a d(10) configuration. Published by Elsevier Inc.

  DOI：

  10.1016/j.jssc.2007.02.006
• 作为产物：
  描述：

  {Pta4}{RhaCl5} 在 H₂ 作用下， 以 neat (no solvent, solid phase) 为溶剂， 生成 铂-铑合金
  参考文献：
  名称：

  High-temperature X-ray diffraction study of thermolysis of the double complex salt [Rh(NH3)5Cl][PtCl4]

  摘要：

  通过 X 射线衍射和同步辐射原位研究了双络合盐 [Rh(NH3)5Cl][PtCl4] 在氢气或氦气和真空条件下热解形成纳米级 Pt0.50Rh0.50 平衡固溶体粉末的过程。起始络合物阳离子和阴离子金属的还原温度是固溶体形成机制的主要因素。

  DOI：

  10.1007/s11172-006-0385-x
• 作为试剂：
  描述：

  硫化氢 、 氨 、 氧气 在 air 、 铂-铑合金 作用下， 生成 硫酸 、 硝酸
  参考文献：
  名称：

  Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: S: MVol.A2, 3.2.4, page 452 - 458

  摘要：

  DOI：

文献信息

• Rh−Pt Bimetallic Catalysts: Synthesis, Characterization, and Catalysis of Core−Shell, Alloy, and Monometallic Nanoparticles
  作者：Selim Alayoglu、Bryan Eichhorn

  DOI：10.1021/ja8061425

  日期：2008.12.24

  core-shell, RhPt (1:1) alloy, and Rh + Pt monometallic nanoparticles (NPs) were prepared using standard polyol reduction chemistry in ethylene glycol (EG) with standard inorganic salts and polyvinylpyrrolidine (PVP(55000)) stabilizers. PVP-free colloids were also prepared but less stable than the PVP-protected NPs. Rh@Pt core-shell particles were prepared from 2.7, 3.3, and 3.9 nm Rh cores with varying shell

  Rh@Pt 核-壳、RhPt (1:1) 合金和 Rh + Pt 单金属纳米粒子 (NPs) 使用乙二醇 (EG) 中的标准多元醇还原化学与标准无机盐和聚乙烯吡咯烷 (PVP(55000)) 稳定剂制备. 也制备了不含 PVP 的胶体，但不如 PVP 保护的 NPs 稳定。Rh@Pt 核壳颗粒由 2.7、3.3 和 3.9 nm 的 Rh 核制备，具有不同的壳厚度（约 1 和约 2 ML）。通过 TEM、单粒子 EDS、EDS 线扫描、XRD 分析、德拜函数模拟、FT-IR 和微拉曼 CO 探针实验的组合对粒子进行表征。使用 Al(2)O(3) 载体中的 1.0 wt % Pt 负载对三种不同的架构进行了 CO 在氢气 (PROX) 中的优先氧化评估。对于含有 0.2% CO 和 0.
• Probing n-Propanol Electrochemical Oxidation on Bimetallic PtRh Codeposited Electrodes
  作者：I. A. Rodrigues、K. Bergamaski、F. C. Nart

  DOI：10.1149/1.1532327

  日期：——

  show higher activity for CO 2 and propanal production. The electrochemical reduction of the strongly adsorbed intermediates on pure platinum and on the two bimetallic electrodes gave products with 1, 2, and 3 carbons, while the pure rhodium electrode produced only methane. The degree of coverage by the irreversibly adsorbed species is about ten times higher on platinum than on the bimetallic electrodes

  使用原位傅里叶变换红外光谱和在线差分电化学质谱对不同成分的电沉积 Pt、Rh 和 PtRh 研究了正丙醇的吸附和反应。已经观察到双金属电极在低于 0.9 V 时比纯铂更活跃。纯铑电极实际上是不活跃的。产品收率的差异表明铂在丙酸形成方面比双金属电极更具活性，但双金属电极在 CO 2 和丙醛生产方面表现出更高的活性。纯铂和两个双金属电极上强吸附中间体的电化学还原产生具有 1、2 和 3 个碳的产物，而纯铑电极仅产生甲烷。
• Engineering Functions into Platinum and Platinum-Rhodium Nanoparticles in a One-Step Microwave Irradiation Synthesis
  作者：Maria Kalyva、David S. Wragg、Helmer Fjellvåg、Anja O. Sjåstad

  DOI：10.1002/open.201600163

  日期：2017.4

  Platinum (Pt) and platinum–rhodium (PtRh) nanoparticles (NPs) are active catalysts for a range of important industrial reactions, and their response has been shown to be affected by size, morphology, composition, and architectural configuration. We report herein the engineering of these functionalities into NPs by suitably modifying our single‐step fabrication process by using microwave irradiation

  铂（Pt）和铂-铑（PtRh）纳米颗粒（NPs）是许多重要工业反应的活性催化剂，并且它们的反应已显示出受尺寸，形态，组成和建筑构型的影响。我们在此报告通过使用微波辐射电介质加热适当修改我们的单步制造工艺，将这些功能工程化为NP。通过控制反应动力学和封端剂的浓度，同时保持反应时间恒定，可以得到具有不同形态的NP。获得了具有“近单分散”分布且平均尺寸在4至18 nm范围内的Pt @ Rh核@壳八足形立方，Pt截头立方以及立方和小球形NP。通过增加微波时间，可以调节Pt @ Rh的成分，100- X的Rh X（X ≤41原子％）芯被制造。最后，通过同时调节金属前驱体的相对摩尔比和微波照射时间，设计了具有可控成分的合金双金属PtRh NPs。
• Optimization of Pt–Ir on carbon fiber paper for the electro-oxidation of ammonia in alkaline media
  作者：Bryan K. Boggs、Gerardine G. Botte

  DOI：10.1016/j.electacta.2010.04.040

  日期：2010.7

  Plating bath concentrations of Pt(IV) and Ir(III) have been optimized as well as the total catalytic loading of bimetallic Pt-Ir alloy for the electro-oxidation of ammonia in alkaline media at standard conditions. This was accomplished using cyclic voltammetry, scanning electron microscopy (SEM). energy dispersive X-ray (EDX), and statistical optimization tools. Concentrations of Pt(IV) and Ir(III) of the plating bath strongly influence electrode surface atomic compositions of the Pt-Ir alloy directly affecting the electro-oxidation behavior of ammonia. Several anode materials were studied using cyclic voltammetry, which demonstrated that Pt-Ir was the most active catalyst for the electro-oxidation of ammonia. Criteria for optimization were minimizing the climatic oxidation overpotential for ammonia and maximizing the exchange current density. Optimized bath composition was found to be 8.844 +/- 0.001 g L-1 Pt(IV) and 4.112 +/- 0.001 g L-1 Ir(III) based on electrochemical techniques. Physical characterization of the electrodes by SEM indicates that the plating bath concentrations of Pt and Ir influence the growth and deposition behavior of the alloy. (C) 2010 Elsevier Ltd. All rights reserved.
• ——
  作者：Yu. V. Shubin、S. V. Korenev、K. V. Yusenko、T. M. Korda、A. B. Venediktov

  DOI：10.1023/a:1015045310216

  日期：——

  According to the results of powder X-ray diffraction study of the complex salts of composition [M(NH3)(5)Cl][M'Cl-4] (M = Ir, Rh, or Co and M' = Pt or Pd), the anhydrous salts crystallize in the orthorhombic system (space group Pnma) and are isostructural to the [Ir(NH3)(5)Cl][PtCl4] complex studied previously. The unit cell parameters of the resulting salts were refined. The metal powders, which were obtained by thermal decomposition of these salts under an atmosphere of hydrogen, were studied by powder X-ray analysis.