Thermal Interaction in the System [Pt(NH3)4]Cl2-(NH4)10[H2W12O42]

被引：3

作者：

Fesik, E. V. ^{[1
]}

Buslaeva, T. M. ^{[1
]}

Tarasova, L. S. ^{[2
]}

Sirotinkin, V. P. ^{[3
]}

机构：

[1] MIREA Russian Technol Univ, Lomonosov Inst Fine Chem Technol, Moscow 119571, Russia

[2] Russian Acad Sci, Siberian Branch, Fed Res Ctr, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia

[3] Russian Acad Sci, Baikov Inst Met & Mat Sci, Moscow 119991, Russia

来源：

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2020年 / 65卷 / 10期

关键词：

platinum; tungsten; bimetallic systems; powders; solid solutions; COMPLEX SALTS; DECOMPOSITION; TUNGSTEN; TRANSFORMATIONS; TETRAAMMINE; THERMOLYSIS; CATALYSTS; PT/HZSM-5; MIXTURES;

D O I：

10.1134/S0036023620100058

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A study was made of the thermal interaction in the system [Pt(NH3)(4)]Cl-2-(NH4)(10)[H2W12O42] (Pt : W = 1 : 2) in an argon atmosphere, which begins at a temperature above 200 degrees C, occurs through a number of successive steps, and ends at 450 degrees C. The intermediate products formed in the solid and gas phases were investigated by thermogravimetric analysis, differential thermal analysis, mass spectrometry, X-ray powder diffraction analysis, X-ray photoelectron spectroscopy, and elemental analysis. The end solid products obtained at 542 and 550 degrees C were platinum-based solid solutions Pt1 - xWx with the unit cell parameters a = 3.9261(6) and 3.9262(3) angstrom, respectively, and also the tungsten oxide phases: hexagonal h-WO3 and monoclinic m-WO3. A reaction was proposed to describe the interaction of the components in the considered system. The obtained results can form the basis of methods for producing catalysts based on platinum and tungsten for various chemical processes.

引用

页码：1558 / 1565

页数：8

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