PEM FUEL CELL SYSTEM, COMPRISING AN EXHAUST GAS CATALYST CONNECTED DOWNSTREAM ON THE ANODE SIDE

摘要

The invention relates to a fuel cell system that contains at least one fuel cell module functioning according to the HT-PEM principle. The aim of the invention is to render harmless at least the excess hydrogen gas that accumulates on the hydrogen side of the individual fuel cell unit, by means of an exhaust gas catalyst (25). Pollution of the environment by hydrogen is thus prevented. The invention also relates to exhaust gas catalysts for the carbon monoxide and/or hydrocarbons that are present in the exhaust gas.