Adsorption of CO2 on skeletal cobalt and nickel zirconium phosphates after their treatment with high-frequency hydrogen and argon plasma

The effect of the treatment of solid skeletal electrolytes, such as double zirconium phosphates Me0.5Zr2(PO4)3 (Me = Ni and Co), with high-frequency H2 and Ar plasma on the adsorption and desorption of CO2 was examined. It was found that the treatment of cobalt zirconium phosphate with high-frequency H2 plasma increases its specific surface area, while the pore size is reduced approximately tenfold (from 6.2 to 0.56 nm). Treatment with H2 and Ar plasma influences the adsorption characteristics of CO2 in various ways. The activated character of CO2 adsorption on the initial NiZr and CoZr phosphates remains after their treatment with high-frequency H2 plasma, while the strength of binding between adsorbate molecules and the surface increases. Treatment with Ar plasma leads to a reduction of CO2 adsorption with increasing temperature, and the isosteric heats do not depend on the nature of the conductive ion (Co2+ or Ni2+). © 2016, Pleiades Publishing, Ltd.

Editors
-
Publisher
Maik Nauka Publishing / Springer SBM
Number of issue
5
Language
English
Pages
793-796
Status
Published
Department
-
Number
-
Volume
52
Year
2016
Organizations
  • 1 Peoples’ Friendship University of Russia, Moscow, Russian Federation
Keywords
Adsorption; Cobalt; Intercalation compounds; Nickel; Phosphates; Photochemical reactions; Pore size; Zirconium compounds; Adsorbate molecules; Adsorption and desorptions; Adsorption characteristic; Cobalt and nickels; High frequency HF; Increasing temperatures; Isosteric heats; Zirconium phosphate; Carbon dioxide
Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/3818/