Interfacial engineering core@shell nanoparticles for active and selective direct H2O2 generation
(PHYSorg.com Chemistry)

A class of supported Pd@NiO-x core@shell catalysts have been constructed for direct H2O2 generation. The optimized Pd@NiO-3/TiO2 exhibited high activity, superior selectivity, low degradation activity and excellent stability. The unique, cavity-contained interface structure can suppress the overbinding between Pd-core and (O-O)*, which is effective to prevent H2O formation and guarantees high selectivity of H2O2. The present work highlights the importance of interface engineering of Pd-based catalysts for direct H2O2 synthesis.