Abstract
The direct synthesis of hydrogen peroxide has been studied using a highly active AuPd/C catalyst, where the activated carbon support has been pretreated with dilute HNO3 prior to metal deposition and consequently using standard reaction conditions this catalyst does not hydrogenate H2O2. The effect of reaction variables has been investigated on the synthesis and hydrogenation activity over this catalyst. The effect of H2/O2 molar ratio, temperature, total pressure and solvent composition has been studied and optimised conditions identified. The effect of these conditions on the hydrogenation activity was also evaluated; thereby permitting an optimal set of reaction conditions to be identified for both the synthesis of H2O2 and its hydrogenation/decomposition.
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