Selective Oxidation of Methane to Methanol over Au/H-MOR

• DOI: 10.1021/jacs.3c04260
• Publication Date: 2023-06-02T17:34:49Z
• Authors: Wangyang Wang; Wei Zhou; Yuchen Tang; Weicheng Cao; Scott R. Docherty; Fangwei Wu; Kang Cheng; Qinghong Zhang; Christophe Copéret; Ye Wang
• Keywords: Mordenite; Partial oxidation; Reactivity; Methane Monooxygenase

Selective oxidation of methane to methanol by dioxygen (O2) is an appealing route for upgrading abundant resource and represents one the most challenging reactions in chemistry due overwhelmingly higher reactivity product (methanol) versus reactant (methane). Here, we report that gold nanoparticles dispersed on mordenite efficiently catalyze selective molecular oxygen aqueous medium presence carbon monoxide. The productivity reaches 1300 μmol gcat-1 h-1 or 280 mmol gAu-1 with 75% selectivity at 150 °C, outperforming catalysts reported under comparable conditions. Both hydroxyl radicals hydroperoxide species participate activation conversion methane, while it shown lower affinity mainly accounts selectivity.