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HomeChemistryPhotothermal catalytic CO2 oxidative dehydrogenation of propane to propylene over BiOX (X...

Photothermal catalytic CO2 oxidative dehydrogenation of propane to propylene over BiOX (X = Cl, Br, I) nanocatalysts


CO2 oxidative dehydrogenation of propane (CO2-ODHP) is a method of “two birds with one stone” to synthesize propylene and make the most of CO2. Nonetheless, the response is at all times carried out at excessive temperatures (> 550 °C). Within the current work, we first carried out the response at 270 °C below photothermal circumstances over a number of BiOX (X = Cl, Br, I) nanocatalysts. Amongst them, a BiOI nanosheet catalyst exhibited the very best C3H6 formation exercise of 282.6 μmol·gcat-1·h-1 with 89% selectivity. The lattice oxygen species on the catalyst may catalyze the propane dehydrogenation to propylene, and concurrently, oxygen vacancies are fashioned. The oxygen vacancies are liable for the CO2 discount to CO. As well as, the catalyst is facet-dependent, and the (001) aspects are extra lively than the (110). The current work efficiently verifies the feasibility of photothermal catalytic CO2-ODHP over the BiOI nanosheets and in addition supplies a brand new perception to assemble different facet-dependent dual-functional redox catalysts.

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