Methods for removing contaminants from a polymer electrolyte membrane (PEM) fuel cell or fuel cell stack are provided. The methods are conducted without the need for disassembly of the cell or stack, and can be performed as throughout the lifetime of the c...

A fuel cell system (1) includes at least one apparatus (10) having a gas-permeable, in particular porous or honeycomb structure, which contains a substance which reacts with gaseous chromium species, or which is provided with such a substance, and where th...

A fuel cell system includes: a fuel cell including an anode, a cathode, and an electrolyte interposed between the anode and the cathode; and a purifying apparatus including a catalyst layer that purifies an effluent discharged from the anode. The purifying...

The fuel cell system has a fuel cell or a fuel cell stack with an outer protection with at least one surface coated with catalyzer. The fuel cell system has at least one polymer electrolyte membrane fuel cell or a high temperature fuel cell. The system has...

The fuel cell stack (1) consists of a number of fuel cells with a filter device for filtering an operating medium that is fed to the fuel cell stack with a filter (5) that is integrated into the fuel cell stack. The filter is inserted into an axial main li...

A reformate gas generating device for an energy conversion device comprises a trapping system (110) comprising a filter element (124) and a trap element (140), and a reforming system (100). The reforming system (100) is coupled to the trapping system (110)...

The system has one or more selective oxidation stages (3) for reducing the CO component in the gas flow. These stages are thermally coupled to a reformer (1) for hydrocarbon reforming or to a heat exchanger. One or more additional, thermally decoupled sele...

The electrical recovery of energy, comprising using a fuel cell by reforming an organic fuel, removing carbon monoxide from the reformate and converting the hydrogen in the reformate and the oxygen into electrical energy, where the reformate is treated in ...