This research developed heterogeneous catalysts composed of ZnO and CeO2 supported on H-ZSM-5 for the direct conversion of methane (CH4) and carbon dioxide (CO2) into acetic acid. The acid-base and digital properties have been modulated by oxide impregnation and discount, aiming to create lively websites able to concurrently activating each reactants. The samples have been characterised by XRD, N2 physisorption, HRTEM/EDS, NH3-TPD, CO2-TPD, TPR, FTIR, XPS, CO2-DRIFTS and TGA, and examined in a batch reactor at 300 °C and 10 bar, with catalyst lifetime evaluated by stability testing. The zeolite framework was preserved, though its properties have been modified, leading to improved CH4 and CO2 activation. The diminished catalyst exhibited a excessive floor space and an environment friendly distribution of acidic and fundamental websites, reaching an acetic acid productiveness of 1473.40 μmol.g-1.h-1 and a conversion charge of 35.12%. The outcomes surpassed these of earlier research, highlighting the potential of the Zn-Ce/H-ZSM-5 system for biogas valorization and greenhouse fuel mitigation
