Reactant enrichment in hollow void of Pt NPs@MnOx nanoreactors for boosting hydrogenation performance

ABSTRACT: ABSTRACT In confined mesoscopic spaces, the unraveling of a catalytic mechanism with complex mass transfer and adsorption processes such as reactant enrichment is a great challenge. In this study, a hollow nanoarchitecture of MnOx-encapsulated Pt nanoparticles was designed as a nanoreactor to investigate the reactant enrichment in a mesoscopic hollow void. By employing advanced characterization techniques, we found that the reactant-enrichment behavior is derived from directional diffusion of the reactant driven through the local concentration gradient and this increased the amount of reactant. Combining experimental results with density functional theory calculations, the superior cinnamyl alcohol (COL) selectivity originates from the selective adsorption of cinnamaldehyde (CAL) and the r

SUBMITTER:  

PROVIDER: S-EPMC10476892 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature