Oxygen vacancy promoted CO2 activation over acidic-treated LaCoO3 for dry reforming of propane

Utilizing propane and CO2 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 CO2 simultaneously. Herein, acidic H2O2 was applied to etch LaCoO3. Surprisingly, highly dispersed Co3O4 at the edges of support along with high oxygen vacancies were obtained from acidic H2O2 treatment. Furthermore, the treated LaCoO3 catalyst facilitated the generated intermediates of formate to convert into the desired products. The results showed that acidic H2O2 treated LaCoO3 catalyst can reach 18% for propane conversion and 35% for CO2 conversion at 550 degrees C, showing high catalytic activity. Consequently, the present work provides some ideas for the synthesis of efficient LaCoO3 catalysts for dry reforming of propane. (C) 2022 Elsevier Ltd. All rights reserved.

Automated summary

Utilizing propane and CO2 for syngas production via dry reforming offers advantages, and creating efficient catalytic systems is crucial. Acidic H2O2 treatment of LaCoO3 catalyst yields highly dispersed Co3O4, enhancing catalytic activity for propane and CO2 conversion.