Influence of thermal activation conditons of palladium-copper-iron-containing catalytic system on low-temperature CO oxidation
https://doi.org/10.29235/1561-8331-2019-55-1-18-25
Abstract
The process of thermal activation of a carbon fiber supported with palladium-copper-iron-containing catalysts has been studied by means of DSC and TGA in air and in nitrogen. The presence of the exoeffect during calcination due to the interaction of the copper (II) nitrate decomposition products with the carbon carrier was detected. Aforementioned exoeffect leads to spontaneous heating and combustion of the sample in air. The XPS and catalytic experiments showed that calcination of the catalyst in nitrogen leads to the formation of low-activity reaction centers. Oxygen plays an important role in the formation of the active phase, so the thermal activation of catalyst should be carried out in the air.
Supporting agencies: OAO «SvetlogorskKhimvolokno»; V.Z. Radkevich
About the Authors
S. G. Khaminets
Institute of Physical Organic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Siarhei G. Khaminets – Ph. D. (Chemistry), Researcher.
13, Surganov Str., 220072, Minsk.
E. A. Abramovich
Institute for Physical Chemical Problems, Belarusian State University
Belarus
Belarus
Ekaterina A. Abramovich – Junior Researcher.
14, Leningradskaya Str., 220030, Minsk.
L. I. Panko
Institute for Physical Chemical Problems, Belarusian State University
Belarus
Belarus
Lubov I. Panko – Leading Chemist-Engineer.
14, Leningradskaya Str., 220030, Minsk.
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