Reductive Treatment of Pt Supported on Ti_0.8Sn_0.2O₂-C Composite: A Route for Modulating the Sn-Pt Interactions.

ABSTRACT: The composites of transition metal-doped titania and carbon have emerged as promising supports for Pt electrocatalysts in PEM fuel cells. In these multifunctional supports, the oxide component stabilizes the Pt particles, while the dopant provides a co-catalytic function. Among other elements, Sn is a valuable additive. Stong metal-support interaction (SMSI), i.e., the migration of a partially reduced oxide species from the support to the surface of Pt during reductive treatment is a general feature of TiO₂-supported Pt catalysts. In order to explore the influence of SMSI on the stability and performance of Pt/Ti_0.8Sn_0.2O₂-C catalysts, the structural and catalytic properties of the as prepared samples measured using XRD, TEM, XPS and electrochemi

SUBMITTER: Silva C 

PROVIDER: S-EPMC10473237 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature