Balancing elementary steps enables coke-free dry reforming of methane.

ABSTRACT: Balancing kinetics, a crucial priority in catalysis, is frequently achieved by sacrificing activity of elementary steps to suppress side reactions and enhance catalyst stability. Dry reforming of methane (DRM), a process operated at high temperature, usually involves fast C-H activation but sluggish carbon removal, resulting in coke deposition and catalyst deactivation. Studies focused solely on catalyst innovation are insufficient in addressing coke formation efficiently. Herein, we develop coke-free catalysts that balance kinetics of elementary steps for overall thermodynamics optimization. Beginning from a highly active cobalt aluminum oxide (CoAl₂O₄) catalyst that is susceptible to severe coke formation, we substitute aluminum (Al) with gallium (Ga), reporting a C

SUBMITTER: Yu J 

PROVIDER: S-EPMC10657353 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature