MoO3-modified SAPO-34 for photocatalytic nonoxidative coupling of methane

Photo-driven nonoxidative coupling of CH4 to produce valuable hydrocarbons is an attractive potential way to alleviate the energy crisis but is still limited by the lower catalytic efficiency. Herein, a Mo-oxide modified zeolite was fabricated by a facile wet-impregnation method and achieved a CH4 conversion rate of 4.10 mu mol g(-1) h(-1) (8.04% conversion of CH4) at 473 K with continuous light irradiation. There is a good volcanic curve between the activity and the content of Mo loading. The effect of heat and light was elucidated, and irradiation was the essential condition for activation of C-H. Combined with experimental and analysis data, regulating the Mo percentage to construct different Mo species and tuning the acidity strength of catalysts are significant for the catalytic activity and stability.

Automated summary

In this study, a modified Mo-oxide zeolite was used to achieve photo-driven nonoxidative coupling of CH4. It was found that light irradiation is essential for the activation of C-H bonds. Adjusting the Mo loading and acidity strength of the catalysts is significant for their catalytic activity and stability.