Correlation between the TiO₂ encapsulation layer on Pt and its electrochemical behavior.

ABSTRACT: Supported metal catalysts with partial encapsulation resulting from strong metal-support interactions show distinctive structural features which strongly affect their functionalities. Yet, challenges in systematic synthesis and in-depth characterization for such systems limit the present understanding of structure-property relationships. Herein, the synthesis and characterization of two Pt/TiO₂ models are conducted by a simple change of the synthesis order, while keeping all other parameters constant. They differ in containing either bare or encapsulated Pt nanoparticles. The presence of an extremely thin and inhomogeneous TiO₂ layer is clearly demonstrated on 2-3 nm sized Pt nanoparticles by combination of imaging, energy dispersive X-ray spectroscopy and electron en

SUBMITTER: Armengol RA 

PROVIDER: S-EPMC9417513 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature