sodium tetrasulfito-platinat(II)

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 碱金属含氧阴离子化合物
• 英文名称: sodium tetrasulfito-platinat(II)
• 英文别名: Sodium;platinum(2+);sulfite
• 化学式: 6Na*4O₃S*Pt
• 分子量: 653.275
• InChiKey: RYQRBMNMBUXRQI-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  -4.0
• 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：
  82.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  sodium tetrasulfito-platinat(II) 在 双氧水 、 甲烷 作用下， 以 水 为溶剂， 生成 铂
  参考文献：
  名称：

  Investigation of carbon-supported Pt and PtCo catalysts for oxygen reduction in direct methanol fuel cells

  摘要：

  Carbon-supported Pt and Pt3Co catalysts with a mean crystallite size of 2.5 nm were prepared by a colloidal procedure followed by a carbothermal reduction. The catalysts with same particle size were investigated for the oxygen reduction in a direct methanol fuel cell (DMFC) to ascertain the effect of composition. The electrochemical investigations were carried out in a temperature range from 40 to 80 degrees C and the methanol concentration feed was varied in the range 1-10 mol dm(-3) to evaluate the cathode performance in the presence of different conditions of methanol crossover. Despite the good performance of the Pt3Co catalyst for the oxygen reduction, it appeared less performing than the Pt catalyst of the same particle size for the cathodic process in the presence of significant methanol crossover. Cyclic voltammetry analysis indicated that the Pt3Co catalyst has a lower overpotential for methanol oxidation than the Pt catalyst, and thus a lower methanol tolerance. Electrochemical impedance spectroscopy (EIS) analysis showed that the charge transfer resistance for the oxygen reduction reaction dominated the overall DMFC response in the presence of high methanol concentrations fed to the anode. This effect was more significant for the Pt3Co/KB catalyst, confirming the lower methanol tolerance of this catalyst compared to Pt/KB. Such properties were interpreted as the result of the enhanced metallic character of Pt in the Pt3Co catalyst due to an intra-alloy electron transfer from Co to Pt, and to the adsorption of oxygen species on the more electropositive element (Co) that promotes methanol oxidation according to the bifunctional theory. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.electacta.2009.03.070
• 作为产物：
  描述：

  顺-二氯二(吡啶)铂(II) 、 sodium sulfite 以 not given 为溶剂， 生成 sodium tetrasulfito-platinat(II)
  参考文献：
  名称：

  Lebedinskii, V. V.; Novozhenyuk, Z. M., Izvestia Sektora platiny i drugih blagorodnyh metallov., 1952, vol. 27, p. 89 - 98

  摘要：

  DOI：

文献信息

• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Pt: MVol.D, 126, page 285 - 286
  作者：

  DOI：——

  日期：——
• Lebedinskii, V. V.; Novozhenyuk, Z. M., Izvestia Sektora platiny i drugih blagorodnyh metallov., 1952, vol. 27, p. 89 - 98
  作者：Lebedinskii, V. V.、Novozhenyuk, Z. M.

  DOI：——

  日期：——
• Photoprocess in AgBr microcrystals in the presence of Pt(II) and Pd(II) complex ions
  作者：B. A. Sechkarev、F. V. Titov、O. V. Salishcheva、D. V. Dyagilev、K. A. Bodak、A. A. Vladimirov、U. V. Sharaeva

  DOI：10.1134/s1070427208080041

  日期：2008.8

  Results of a systematic study of the chemical sensitization of cubic-faceted AgBr emulsion microcrystals with complex compounds K-2[XY4] and Na-6[XZ(4)] [X = Pd, Pt; Y = Br-, Cl-, SCN-; Z = (SO3)(2-)] were considered. The role of secondary dissociation of complex ions during the chemical sensitizing was established. Conditions were determined in which the compounds specified can be used as chemical sensitizers of AgBr. The effect of these complexes on the basic photographic characteristics was demonstrated.
• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Pt: MVol.D, 125, page 283 - 285
  作者：

  DOI：——

  日期：——
• Lebedinskii, V. V.; Novozenjyk, Z. M., Izvestia Sektora platiny i drugih blagorodnyh metallov., 1952, vol. 27, p. 89 - 98
  作者：Lebedinskii, V. V.、Novozenjyk, Z. M.

  DOI：——

  日期：——