Just Accepted
Fanxin Kong, Hongzhi Wang, Huimei Duan*
https://doi.org/10.1016/j.cjsc.2024.100287
ABSTRACT
In summary, the sulfated Pt/TiO2-S catalysts were preparedby impregnating with sulfuric acid solution. The sulfation of TiO2 causes the supported Pt/TiO2-S catalysts severely deactivation towards methane combustion. It was found that sulfation of TiO2 supports suppresses the formation and stability of highly reactive Pt2+ species during methane oxidation process, weakens the adsorption of CH4 molecule, and raises activation energy barrierof the first C-H bond, eventually causing a sharp decline in activity.