NOVELTY - A composite material comprises metal powder and sodium oxide or sodium hydroxide, where composite material powder is exposed to acidic gas allowing alkali component of the material powder to be coated with layer of salt. The salt is inert to metal powder and soluble in water. An exothermic reaction between composite material and water occurs once the soluble layer of salt is dissolved to generate hydrogen gas at ambient pressure; and the residual material of composite material post hydrogen gas reaction is alkaline and treated with acidic gas to lower pH of residual material.    USE - For hydrogen gas generation from water in exothermic reaction; and in hydrogen generator unit for generating low-pressure hydrogen from water (claimed) suitable for use in hydrogen fuelling systems for fuel cells and internal combustion engine standalone energy systems, where the generated hydrogen also utilized to fuel numerous applications such as for vehicle propulsion, for micro energy system (battery replacements), and for emergency power supply systems.    ADVANTAGE - The composite material is more reliable, stable, user friendly and final environmentally friendly disposal of any residue product after the hydrogen gas generation. The stabilization of the composite powder makes it much more user friendly and not so reactive with water moisture or water. Transportation and storage of the composite material can be costly as it needs to be done in a controlled environment where there is no risk of any water getting in contact with the composite powder material. The acidic gas is exposed transiently to the metal component of the alkali composite material creating a very fine e.g. monolayer, layer of the salt on the composite powders particles. This prevents the premature reaction of the metal component with the alkali allowing for safer and more user friendly handling of the composite material. The manufacturing approach of spray forming and the stabilization process allows for a very cost efficient and user friendly end product for future transportation and use by end users.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) hydrogen generator unit for generating low-pressure hydrogen from water comprising reaction chamber to receive cartridge system with the composite material and employ extracting chemical process to generate low-pressure hydrogen from exothermic reaction between composite material and water, where the material has water soluble salt layer which needs to dissolve prior to the exothermic hydrogen gas generating reaction is initiated;    (2) manufacturing composite material involving melting a metal and injecting the molten metal stream into atomization chamber; injecting at least one inert gas at higher pressure to create metal droplets and control the environment in the chamber to avoid ignition; spraying the molten metal droplets onto a cooling plate where condensation and cooling takes place; collecting the meal in powdered form post the cooling plate; mixing the powdered metal with sodium hydroxide to generate blended material; and exposing the blended material to acidic gas at 40-70 degrees C allowing a thin layer of water soluble salt to form on the blended material and forming stabilized composite material; and    (3) generating (M1) hydrogen from composite material involving contacting the composite material with water resulting in a residual alkaline material post reaction and neutralizing the residual alkaline material by exposing it to carbon dioxide which lowers the pH.