TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Process: The solution is a mixture of water and a water miscible solvent. The ratio by volume of water to the water miscible solvent is 90:10-10:90 (preferably 50:50). The water miscible solvent is an ether or an alcohol. The ether is tetrahydrofuran, and the alcohol is ethanol. The solution is alcohol (preferably 1-10C alcohol, more preferably 1-4C alcohol, most preferably ethanol, methanol, 1-propanol, 2-propanol, 1-butanol or 2-butanol). The process is performed at 20-60 (preferably 40) degrees C. The catalyst is dissolved in the mixture of water and the water miscible solvent to form a homogeneous mixture. The compound (I) is added directly to the homogeneous mixture. The ligand-stabilized metal catalyst is soluble in the solution. The process is performed in an inert atmosphere (preferably argon atmosphere). Preferred Catalyst: The metal catalyst comprises an alkali metal, alkaline earth metal, d-block metal, lanthanide, or actinide. The alkali metal is lithium, sodium, potassium, rubidium, cesium or francium. The alkaline earth metal is beryllium, magnesium, calcium, strontium, barium, or radium. The d-block or transition metal is scandium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, yttrium, zirconium, niobium, molybdenum, technetium, ruthenium, palladium, silver, cadmium, hafnium, tantalum, tungsten, rhenium, osmium, iridium, platinum, gold, or mercury (preferably ruthenium, cobalt, nickel, rhodium or iridium). The lanthanide is lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, or lutetium. The actinide is actinium, thorium, protactinium, uranium, neptunium, plutonium, americium, curium, berkelium, californium, einsteinium, fermium, mendelevium, nobelium, or lawrencium. The catalyst comprises at least one ligand having at least one co-ordinating atom. The co-ordinating atom is phosphorus, nitrogen, oxygen, carbon, silicon, germanium, sulfur, selenium or arsenic. The ligand comprises a phosphine, arsine, diphosphine, imine, pyridine, amine, carbene, aminophosphine, diamine, aminodiphosphine, diaminodiphosphine, dicarbene, aminocarbene, phosphinocarbene, alcohol, ether, aminoether, phosphinoether, aminoalcohol or aminothiol group. The ligands are selected from at one of: (a) phosphines of the formula PR5R6R7 (II) (bidentate or tridentate and are chiral or achiral monodentate phosphine ligands); (b) bis(phosphino) bi-, tri- or tetradentate ligands of formula R9R10P-Q1-PR11R12 (III); (c) bidentate ligands of formula R13R14P-Q2-NR15R16 (IV); (d) heterocyclic ligands of formula Hy-Q3-Hy (V) (which are bi- or tri-dentate ligands); (e) diaminophosphines of the formula R17R18N-Q4-P(R19)-Q5-NR20R21 (VI), or R17NH-Q4-P(R19)-Q5-NHR20 (VII); (f) diamines of formula R22R23N-Q6-NR24R25 (VIII), or R22NH-Q6-NHR24 (IX); (g) thiophenes of formula T-Q7-NH2 (X); or (h) amines of formula R25-S-Q8-NH2.R5-R7=Z;Z=1-10C alkyl, 2-10C alkenyl, 3-10C cycloalkyl, or 6-14C aryl (all optionally substituted), OR8, or N(R8)2;R8=1-10C alkyl, 2-10C alkenyl, 3-10C cycloalkyl, 6-14C aryl;ortwo of R5-R8 bonded together=4-8-membered ring (optionally substituted and including the atoms selected from P, N and/or O, to which the groups are bonded);R9-R12=Z;Q1-Q8=1-10C alkylene or 1-10C alkenylene (both optionally substituted and optionally chiral);oradjacent or geminal substituents on Q1-Q8 are joined together including the atoms to which they are attached=5-14-membered monocyclic, polycyclic, heterocyclic, carbocyclic, saturated, unsaturated or metallocenyl ring (optionally substituted, and at least one of the carbon atoms optionally replaced by a heteromoiety selected from O, S, NH and N(1-6C alkyl));R13 and R14=Z;R15-R24=6-14C aryl or 3-12C cycloalkyl (both optionally substituted), or H or 1-10C alkyl;Hy=3-10C aromatic or non-aromatic heterocycle (optionally substituted and containing 1-3 heteromoieties selected from O, S, N, NH and N(1-6C alkyl));R19 and R25=Z;T=thiophene (optionally substituted).Preferred System: The hydrogen generation system (S1) comprises a first compartment comprising the at least one amine borane of the formula (I), a second compartment comprising the at least one ligand-stabilized metal catalyst, where the first or second compartment further comprises the solvent and a device for combining the contents of the first compartment with the second compartment so that when the contents are combined, hydrogen is generated. The system further comprises at least one flow controller to control a flow rate of the catalyst or the amine borane. The system is fluidly connected to a proton exchange membrane fuel cell (PEMFC). Preferred Definitions:    R1-R4=H.    EXAMPLE - Effect of alcohol solvents on the production of hydrogen from ammonia-borane was evaluated. A solvent comprising either n-butanol (100%) (comparative), or a mixture of n-butanol and water (50:50) (test) (80 ml), was heated to 40 degrees C for 5 minutes, and then a solution of the catalyst (bis(2-(di-tert-butylphosphino)ethyl)aminechlorocyclooctenylhydridoiridium(III)) in the appropriate (comparative/test) solvent (1 ml of a 1 mg/ml) was added. The flask was sealed and the ammonia-borane (500 mg) was added to the reaction mixture slowly to generate hydrogen gas. The volume of hydrogen gas generated was recorded at one minute intervals, for 10 minutes. It was observed that the volume of hydrogen generated using the (test)/(comparative) solvent systems were at follows (ml): after 4 minutes: (700/100); after 6 minutes: (1100/200); and after 10 minutes: (1200/400).