Water Formation Reaction under Interfacial Confinement: Al_0.25Si_0.75O₂ on O-Ru(0001).

ABSTRACT: Confined nanosized spaces at the interface between a metal and a seemingly inert material, such as a silicate, have recently been shown to influence the chemistry at the metal surface. In prior work, we observed that a bilayer (BL) silica on Ru(0001) can change the reaction pathway of the water formation reaction (WFR) near room temperature when compared to the bare metal. In this work, we looked at the effect of doping the silicate with Al, resulting in a stoichiometry of Al_0.25Si_0.75O₂. We investigated the kinetics of WFR at elevated H₂ pressures and various temperatures under interfacial confinement using ambient pressure X-ray photoelectron spectroscopy. The apparent activation energy was lower than that on bare Ru(0001) but higher than that

SUBMITTER: Cored J 

PROVIDER: S-EPMC8779344 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature