EXPERIMENTAL STUDY OF HYDROGEN GENERATION FROM WATER SPLITTING USING ALUMINIUM

Abstract

This work deals with the experimental study of hydrogen generation from water splitting using aluminium. Aluminium reacts with water and produces hydrogen but this reaction is inhibited with formation of protective layer on outer surface. Different promoters are used which enhance this reaction. Chemicals used over here are Sodium Stannate, Calcium Oxide, Sodium Chloride and Sodium Hydroxide. Parameters on which hydrogen produced, production rate and hydrogen produced per gram of aluminium depends are basically the amounts of chemical used, Aluminium amount and temperature. Effects of the parameters on the hydrogen produced, rate and amount per gram of aluminium was investigated both by procedural experimentation technique as well as using Design of Experiment technique. Activation energy for hydrogen production promoted by Sodium Stannate was calculated. Also, parameters effect was investigated in the temperature range of 70-90°C. For the case of CaO as promoter, parametric study was done on final amount of hydrogen produced at 80°C for Al=0.07 gm using Design of Experiment. As the demand for clean fuel increasing, because of environmental reason, hydrogen is going to be future of energy sector. Hydrogen in transportation as well as in portable devices is certainly going to be used. There will be great need of technology in field of storing hydrogen. Hydrogen production by Aluminium water reaction could possible act as storage device of hydrogen in form of water. It could be very compact device and meet the future technologies for hydrogen storage.