Surface State of Catalysts of CO Oxidation, Obtained by Depositing Platinum on Powder of Plasma-Chemical Titanium Nitride

被引：3

作者：

Kabachkov, E. N. ^{[1
,2
]}

Kurkin, E. N. ^{[1
,2
]}

Vershinin, N. N. ^{[1
]}

Balikhin, I. L. ^{[1
,2
]}

Berestenko, V. I. ^{[1
]}

Shul'ga, Yu. M. ^{[1
,3
]}

机构：

[1] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Moscow Oblast, Russia

[2] Russian Acad Sci, Sci Ctr, Chernogolovka 142432, Moscow Oblast, Russia

[3] Natl Res Technol Univ MISiS, Moscow 119049, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2020年 / 94卷 / 03期

关键词：

X-ray photoelectron spectroscopy; titanium nitride; platinum; CO oxidation catalyst; RAY PHOTOELECTRON-SPECTRA; TIN COATINGS; FILMS; VANADIUM; HARDNESS; COLOR; XPS;

D O I：

10.1134/S0036024420030127

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Catalysts of low-temperature carbon monoxide oxidation are obtained by depositing platinum clusters on surfaces of plasma-chemical titanium nitride. The catalyst surfaces are studied by means of X-ray photoelectron spectroscopy (XPES). It is shown that in the catalysts, platinum is not only in contact with a thin layer of titanium dioxide but in possible direct contact with titanium oxynitride as well. It is found that treating the catalyst with carbon monoxide does not result in the total reduction of platinum. When XPE spectra of the initial powders of titanium nitride are compared to those of the catalyst, it is shown that the oxide film on the nitride surface grows thinner when the catalyst is synthesized.

引用

页码：538 / 543

页数：6

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