Comprehensive Studies on the Role of Small Aliphatic Alcohols in the Direct Synthesis of Hydrogen Peroxide with a Combination of Solvent Step and In Situ FTIR-ATR Experiments

O Reinsdorf, K Eränen, T Salmi

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

1 Citeringar (Scopus)
13 Nedladdningar (Pure)

Sammanfattning

A combination of transient methods in a laboratory-scale trickle bed reactor and attenuated total reflection (ATR)-infrared spectroscopy was applied to gain insight into the reaction mechanism of the direct synthesis of hydrogen peroxide (DSHP) on a commercial 5 %Pd/C catalyst, with water and methanol used as solvents. During the transient studies, after the switch from water to methanol, an oscillatory pattern was observed in which methoxy and hydroxymethyl species were observed prior to the peroxide species. From the specific position and the maxima in the intensities of these species over time, an augmented reaction scheme for the DSHP in methanol was proposed, in which methanol can form hydroxymethyl species which act as co-catalysts to reduce absorbed oxygen species.
OriginalspråkEngelska
Artikelnummer753
Antal sidor13
TidskriftCatalysts
Volym13
Nummer4
DOI
StatusPublicerad - 14 apr. 2023
MoE-publikationstypA1 Tidskriftsartikel-refererad

Nyckelord

  • direct synthesis of hydrogen peroxide
  • in situ FTIR-ATR
  • solvent effect
  • transient studies

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