Effect of Potassium Doping on the Structural and Catalytic Properties of Co/MnO_x Catalyst in the Steam Reforming of Ethanol.

ABSTRACT: The promotional effect of potassium (~1.25 wt%) on a Co/MnO_x catalyst was studied for samples prepared by the impregnation method in the steam reforming of ethanol (SRE) process at 420 °C for a H₂O/EtOH molar ratio of 12/1. The catalysts were characterized using physicochemical methods to study their textural, structural, and redox properties. The XRD studies revealed that, during the treatment of both cobalt-based catalysts under a hydrogen atmosphere at 500 °C, Co⁰ and MnO phases were formed by the reduction in Co₃O₄ and Mn₂O₃/Mn₃O₄ phases, respectively. Potassium doping significantly improved stability and ability for the C-C bond cleavage of the Co/MnO_x catalyst. The enhancemen

SUBMITTER: Greluk M 

PROVIDER: S-EPMC10420196 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature