TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The catalytically active material comprises metals of platinum (preferred) and/or transition metals or their alloys.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Claimed): Preparation of (I) comprises depositing at least the catalytically active material on the carrier and optionally performing a temperature treatment. Preferred Components: The organic semiconducting compound with polycyclic aromatic structure is dibenzo(cd,lm)perylene-1,3,8,10(2H,9H)-tetraone compounds of formula (II). The organic semiconducting compound comprises perylene, naphthalene, coronene or quaterrylene, preferably perylene imide or quarterrylene imide, as a backbone. The basic structure of organic semiconducting compound has 12-75C.X = O or NR9;R9 = aralkyl, (hetero)aryl, cycloalkyl or 1-22C-alkyl (all optionally substituted with one or more substituents) or H;R1-R8 = (cyclo)alkyl, aralkyl, aryl, alkoxyaryl or heterocyclyl (all optionally substituted with one or more substituents and interrupted by 1-3 heteroatoms or functional groups) or H; andn = 0-2.Preferred Method: The deposition process is carried out in a solvent and in the presence of a surfactant. The temperature treatment is performed at 90-500 degrees C for 1-10 hours. The carrier is thermally treated at 150-250 degrees C for 1-4 hours and at a pressure of less than 1000 mbar before the deposition process. EXAMPLE - Paliogen Red L 4120 (RTM: N,N'-Dimethylperylene-3,4,9,10-tetracarboxylic acid diimide) (5 g) with an average particle size of 100-750 nm was pretreated at 200 degrees C under vacuum over a period of 2 hours and then dispersed in water (500 ml). Platinum nitrate (1.25 g) was dissolved in water (100 ml) and added to the carrier dispersion. Subsequently water (200 ml) and ethanol (900 ml) were added and the mixture was heated for 6 hours under reflux and nitrogen atmosphere. The catalyst was filtered and washed with hot water (2 l) and dried in a vacuum at 80 degrees C over a period of 8 hours to give corresponding catalyst with a platinum loading of 30 wt.%.