Carbon supported Cs-and Cu-based catalysts for gas-phase dehydrochlorination of 1,1,2-trichloroethane
Cs/AC and Cu/AC catalysts were prepared by impregnation method and evaluated in the gas-phase dehydrochlorination reaction of 1,1,2-trichloroethane.Highly dispersed Cs species and crystalline Cu species are generated on the carbon surface during the impregnation process.Superior catalytic performance is triggered for the Cs/AC catalyst,with an 86.7%stable conversion under reaction conditions of 573 K and a gas hourly space velocity of 1000 h-1.Experimental and theoretical calculations show that the adsorption and activation 1,1,2-trichloroethane is facilitated over the CsCl species,thereby enhancing the catalytic performance.This work provides a promising strategy to explore highly efficient and economic catalysts for the synthesis of 1,1-dichloroethylene.
vinylidene chlorideactivated carboncatalysisdehydrochlorination of 1,1,2-trichloroethanecatalyst support
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