TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The boron containing solvent is boron containing Lewis acid, preferably methyl borate, ethyl borate or boron compound of formula (B(N(CH3)2)3) and/or boron containing acid base complex of formula (B(OCH3)3NH3), (B(OC2H5)3NH3), (BH3Py) or (BH3N(C2H5)3). The ionic liquid is nitrogen containing ammonium based compounds, imidazolium based compounds or pyridinium based compounds. The imidazolium based compound is 1-butyl-3-methylimidazolium-tetrafluoroborate. The hydrogen containing compound is complex hydrides, preferably borohydrides or their adducts, metal hydrides and/or boron-nitrogen compounds, preferably borazane or substituted borazane. The concentration of the hydrogen containing compound in the liquid transportation medium is 10-90 (preferably 30-50) wt.%. The homogeneous or heterogeneous catalyst is from the group of the noble metals.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The hydrogen generator further comprises: a separator (4) for the separation of solid reaction products; and a container (10) for collecting the further reaction products, preferably the solid reaction products. The reactor is a flow reactor, a tubular reactor and/or a stirrer vessel. The reactor contains a filter for cleaning the hydrogen downstream. The components of the hydrogen generator are arranged in a circulation system or in one-way flow system.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The decomposition of the hydrogen containing compounds is activated by catalytically or thermally. The catalysts are applied on substrate structures e.g. on honeycomb structures (monolith), in the form of coatings and/or as pellets in bulk. The thermal activation takes place at 20-160 degrees C, preferably 70-110 degrees C. The hydrogen release is accelerated by addition of catalytic amount of water. The pressure of the obtained hydrogen is regulated at 1-800 (preferably 1-30) bars. The flow rate of the solution is regulated at 0.1-100 (preferably 0.5-50) ml/minute. The release rate of hydrogen lies at 2-200 (preferably 16-84) normal liters per hour. Preferred Components: The transport medium is a solvent for the at least one hydrogen containing compound. The transport medium is an organic solvent, boron containing solvent and/or an ionic liquid. The organic solvent is an ether compound of formula (-CR2-O-CR2-), preferably glyme, diglyme, triglyme or tetraglyme, or an alcohol with at least one hydroxyl-group, preferably methanol, ethanol, n- or iso-propanol.R = H, CH3, C2H5, iso-C3H7, C4H9 or tert-C4H9. EXAMPLE - None given.