Acetone and ethanol vapor oxidation via negative atmospheric corona discharge over titania-based catalysts

Mikhail N. Lyulyukin, Alexey S. Besov, Alexander V. Vorontsov

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

The paper is devoted to the oxidation of acetone and ethanol vapors by means of an optimized negative atmospheric corona discharge combined with TiO2-based catalysts located in a post-plasma position. A series of studied samples includes CuO-MnO2/TiO2, CuO/TiO2 and MnO2/TiO2 with 3 wt% of copper oxide and 6.8 wt% of manganese oxide. Experiments were performed at room temperature in a closed 404-L chamber with a ∼0.9-L active plasma region. It was shown that the use of the catalysts can provide a significant reduction in the concentrations of ozone and oxidation byproducts and a three-fold increased conversion of the reactants. It was unexpectedly found that copper oxide, as an active agent, did not significantly change the effect of post-plasma-located TiO2. The manganese-containing sample was found to be the best catalyst at the conditions considered. The presence of this catalyst in the post-plasma position inhibits the formation of unwanted products (O3 and CO) and promotes the deep oxidation of acetone and ethanol with increased selectivity toward CO2.

Original languageEnglish
Pages (from-to)18-27
Number of pages10
JournalApplied Catalysis B: Environmental
Volume183
DOIs
StatePublished - 2016
Externally publishedYes

Keywords

  • Copper oxide
  • Manganese oxide
  • NTP
  • Post-plasma catalysis
  • Titanium dioxide
  • VOCs

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