Unveiling the Mechanism of Plasma-Catalyzed Oxidation of Methane to C₂₊ Oxygenates over Cu/UiO-66-NH₂.

ABSTRACT: Nonthermal plasma (NTP) offers the potential for converting CH₄ with CO₂ into liquid products under mild conditions, but controlling liquid selectivity and manipulating intermediate species remain significant challenges. Here, we demonstrate the effectiveness of the Cu/UiO-66-NH₂ catalyst in promising the conversion of CH₄ and CO₂ into oxygenates within a dielectric barrier discharge NTP reactor under ambient conditions. The 10% Cu/UiO-66-NH₂ catalyst achieved an impressive 53.4% overall liquid selectivity, with C₂₊ oxygenates accounting for ∼60.8% of the total liquid products. In situ plasma-coupled Fourier-transform infrared spectroscopy (FTIR) suggests that Cu facilitates the cleavage of surface adsorbed COOH s

SUBMITTER: Qi C 

PROVIDER: S-EPMC11106747 | biostudies-literature | 2024 May

REPOSITORIES: biostudies-literature