H2O2 synthesis by selective oxidation of H2 over Pd-Au bimetallic nano colloid catalyst under addition of NaBr and H3PO4

- Addition of NaBr (2 mM) and H3PO4 (0.5 mM) to reaction media was highly effective.
- Deactivation of catalyst relates with the decrease in Br− concentration, surface segregation of Pd and particle size growth.
- After 25 h, H2O2 concentration was reached a value of 5.8 wt% at 298 K.