Synthesis of a Mesoporous SnO₂ Catalyst Support and the Effect of Its Pore Size on the Performance of Polymer Electrolyte Fuel Cells.

ABSTRACT: The aim of this study was to clarify the effectiveness and challenges of applying mesoporous tin oxide (SnO₂)-based supports for Pt catalysts in the cathodes of polymer electrolyte fuel cells (PEFCs) to simultaneously achieve high performance and high durability. Recently, the focus of PEFC application in automobiles has shifted to heavy-duty vehicles (HDVs), which require high durability, high energy-conversion efficiency, and high power density. It has been reported that employing mesoporous carbon supports improves the initial performance by mitigating catalyst poisoning caused by sulfonic acid groups of the ionomer as well as by reducing the oxygen transport resistance through the Pt/ionomer interface. However, carbon materials in the cathode can degrade oxidatively during l

SUBMITTER: Inaba M 

PROVIDER: S-EPMC10910439 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature