Oxygen vacancy promoted CO2 activation over acidic-treated LaCoO3 for dry reforming of propane
Utilizing propane and CO 2 as coreactants to produce syngas (CO/H 2 ) via dry reforming shows several advantages over direct propane dehydrogenation and traditional methane dry reforming . It is of great importance to establish high-efficiency catalytic systems that can break C–C bonds and activate CO 2 simultaneously. Herein, acidic H 2 O 2 was applied to etch LaCoO 3 . Surprisingly, highly dispersed Co 3 O 4 at the edges of support along with high oxygen vacancies were obtained from acidic H 2 O 2 treatment. Furthermore, the treated LaCoO 3 catalyst facilitated the generated intermediates of formate to convert into the desired products. The results showed that acidic H 2 O 2 treated LaCoO 3 catalyst can reach 18% for propane conversion and 35% for CO 2 conversion at 550 °C, showing high catalytic activity . Consequently, the present work provides some ideas for the synthesis of efficient LaCoO 3 catalysts for dry reforming of propane.
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