Carbon dioxide reforming of methane on a cobalt catalyst subjected to plasma–chemical treatment

The effect plasma–chemical treatments of 5 wt % Co/SiO2 catalyst have on its activity in the carbonic acid conversion of methane in the interval of 700 to 900°C is studied. A plasma glow discharge in oxygen and argon was used along with high-frequency plasma in hydrogen for preliminary treatment of the catalyst. A multiple increase in CH4 and CO2 conversion and a 30–50 K drop in the temperature of the onset of the reaction are observed after plasma–chemical treatments. The strongest increase in activity is measured after the catalyst is treated with oxygen plasma. X-ray photoelectron spectroscopy is used to determine the change in the composition of the catalyst’s surface after it is treated with plasma, indicating that active forms of carbon atoms can be included in new active centers. © 2017, Pleiades Publishing, Ltd.

Editors
-
Publisher
-
Number of issue
8
Language
English
Pages
1422-1426
Status
Published
Department
-
Number
-
Volume
91
Year
2017
Organizations
  • 1 RUDN University, ul. Miklukho-Maklaya 6, Moscow, 117198, Russian Federation
Keywords
carbon dioxide reforming of methane; cobalt catalyst; plasma–chemical treatment
Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/5394/