An object of the invention is to provide a fuel cell system capable of performing a stable start-up operation with stable combustion in a burner unit. At the start-up operation of the fuel cell system, out of raw gas components adsorbed to the catalysts fi...

A catalyst structure has a conductive film (1) and catalyst particles (2) formed on the conductive film. The difference between the lattice constant of the material constituting the film and that of the catalyst particles is less than 16%.

The invention relates to a storage tank for a medium with a first volume provided for containing the gaseous medium (GM) and a second volume provided for at least receiving the liquid medium (LM), means for heating the medium (3), inlet and outlet means fo...