Effects of Metal Promoters (M = Fe, Co, and Cu) in Pt/M _x Zr _y O _z Catalysts and Influence of CO₂ and H₂O on the CO Oxidation Activity (PROX): Analysis of Surface Properties After Reaction.

ABSTRACT: In the present paper, the effects of metal promoters (M = Fe, Co, and Cu) in Pt/M _x Zr _y O _z catalysts and the influence of CO₂ and H₂O on the CO oxidation activity (PROX) were investigated. To do that, characterizations of catalyst structures and surfaces were performed and reported here. The catalyst Pt/Fe _x Zr _y O _z (PFeZ) was the most active at low temperatures among the analyzed ones. The addition of platinum caused strong interaction with the mixed oxide, affecting the structure and the surface composition, blocking basic sites, and thus preventing catalyst deactivation. Particularly, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) res

SUBMITTER: Gaioto CC 

PROVIDER: S-EPMC11190919 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature