Effect of polyvinylpyrrolidone (PVP) on palladium catalysts for direct synthesis of hydrogen peroxide from hydrogen and oxygen
Geun‐Ho Han, Seok-Ho Lee, Myung‐gi Seo, Kwan‐Young Lee
Abstract
). The effect of PVP on the catalysts was examined by transmission electron microscopy, Fourier transform infrared spectroscopy, CO chemisorption, thermogravimetric analysis, and X-ray photoelectron spectroscopy. For the catalysts containing PVP, the oxidation state of the palladium 3d shifted to high binding energy due to electron transfer from Pd to the PVP molecules. Consequently, the presence of PVP on the catalysts inhibited oxygen dissociation and decomposition of the produced hydrogen peroxide, resulting in a high selectivity and high production rate of hydrogen peroxide.
Topics & Concepts
PolyvinylpyrrolidoneHydrogen peroxidePalladiumCatalysisChemistryOxygenHydrogenInorganic chemistryPolymer chemistryOrganic chemistryCatalytic Processes in Materials ScienceCatalysis and Oxidation ReactionsElectrocatalysts for Energy Conversion