Selective oxidation of arabinose to arabinonic acid over Pd-Au catalysts supported on alumina and ceria

▶ Au or Au-Pd species covered with PdO show synergetic effect in arabinose oxidation. ▶ Interactions of Au and Pd with ceria coexist with the mutual interaction between them. ▶ Au metallic nanoparticles are responsible for arabinose activation. ▶ Easy redox transformations of Pd species provoke oxygen activation.