Tuning Gas Sensor Selectivity via Morphological Engineering of Au Catalysts on TiO₂-based Nanosheets.

ABSTRACT: Recent studies on catalyst development have primarily focused on discovering novel catalyst compositions, rather than exploiting the morphology and interface effects of existing catalytic materials. This study develops a novel material-driven gas sensor selectivity strategy by tailoring the surface energy of TiO_{2- y} (TO) and Ti_{1- x}Pt_xO_{2- y} (TPO) nanosheet (NS) supports to control the morphology of decorated Au catalysts. Through precise modulation of the substrate surface energies of TO/TPO NSs, the sizes and shapes of the Au catalysts can be engineered from nanoparticles (NPs) to micro-sized sheets without significant changes in chemical composition. This morphological control enables the realization of molecular

SUBMITTER: Han S 

PROVIDER: S-EPMC12674107 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature