Pt Nanoparticles Supported on Porous Antimony-Doped Tin Dioxide Aerogel As Cathode Material for Proton-Exchange Membrane Fuel Cells: Electrocatalytic Activity and Degradation Mechanism

Gwenn Cognard (1) , Guillaume Ozouf (2) , Christian Beauger (2) , Marian Chatenet (1) , Frédéric Maillard (1)

1 LEPMI - Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces
2 PERSEE - Centre Procédés, Énergies Renouvelables, Systèmes Énergétiques

Proton Exchange Membrane Fuel Cells (PEMFC) are high-efficiency energy converters that can be deployed for mobile, transport and stationary applications in an eco-friendly manner. Nevertheless, their large-scale development requires further improvements, specifically regarding their lifetime in operation1. In abnormal PEMFC operating conditions, e.g. start-up/shutdown events2 or localized fuel starvation3, the positive electrode may reach potentials of 1.5 V vs the reversible hydrogen electrode (RHE), which triggers extensive carbon support corrosion at the cathode side.

Mots clés: Aerogel; Fuel cell

Domaines: Sciences de l'ingénieur [physics]; Energétique

Gwenn Cognard, Guillaume Ozouf, Christian Beauger, Marian Chatenet, Frédéric Maillard. Pt Nanoparticles Supported on Porous Antimony-Doped Tin Dioxide Aerogel As Cathode Material for Proton-Exchange Membrane Fuel Cells: Electrocatalytic Activity and Degradation Mechanism. ECS2016, The Electrochemical Society, May 2016, San Diego, United States. ⟨hal-01427028⟩