Influence of carrier effect on Pd/Al₂O₃ for methane complete catalytic oxidation.

ABSTRACT: Pd/Al₂O₃ catalysts modified by different chemical elements (Mg, Si, Ce, and Zr) were tested for methane (CH₄) catalytic combustion, and PdO nanoparticles loaded on modified Al₂O₃ were systematically studied. These conditions assess the carrier effects of Pd/Al₂O₃ and acid strength influences on CH₄ combustion. We observed carrier effects on activation energy through tuning Pd 3d binding energies (BEs) and on pre-exponential factors (A) through Pd dispersion and acidity on supports. When the BE of Pd 3d_5/2 is 337.3 eV, PdO nanoparticles loaded on modified Al₂O₃ have excellent activity in cracking the C-H bond of CH₄, which leads to the lowest activation energy

SUBMITTER: Peng S 

PROVIDER: S-EPMC9445149 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature