Effect of polyvinylpyrrolidone (PVP) on palladium catalysts for direct synthesis of hydrogen peroxide from hydrogen and oxygen
When synthesizing nanoparticles in the liquid phase, polymeric materials (mainly
polyvinylpyrrolidone, PVP) are applied as capping and/or stabilizing agents. The polymer
layer on the nanoparticles must likely be removed since it blocks the active sites of the
catalyst and inhibits mass transfer of the reactants. However, we have found that the polymer
can have a positive effect on the direct synthesis of hydrogen peroxide. By testing Pd/SiO2
catalysts with different amounts of PVP, it was revealed that an adequate amount of PVP …
polyvinylpyrrolidone, PVP) are applied as capping and/or stabilizing agents. The polymer
layer on the nanoparticles must likely be removed since it blocks the active sites of the
catalyst and inhibits mass transfer of the reactants. However, we have found that the polymer
can have a positive effect on the direct synthesis of hydrogen peroxide. By testing Pd/SiO2
catalysts with different amounts of PVP, it was revealed that an adequate amount of PVP …
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