The usage of discarded battery coals as electrodes and improving their hydrogen gas production performances by impregnation with Zr and Ce metals

Authors : Sema ASLAN

Pages : 97-101

View : 22 | Download : 14

Publication Date : 2019-12-27

Article Type : Research Paper

Abstract :Hydrogen gas insert ignore into journalissuearticles values(H 2insert ignore into journalissuearticles values(g); ); production is one of the major topic of the industry and energy production fields, for the last decades. Especially it is popular with showing high energy density. Among the other industrial methods electrolysis is the cleanest one without any by product emissions. It has been very popular to recovery of the discarded materials insert ignore into journalissuearticles values(such as batteries); as an environmentally friendly equipments. Here the coal of a used up battery is utilized as an electrode in the electrolysis system in order to produce insert ignore into journalissuearticles values(H 2insert ignore into journalissuearticles values(g); );. Then these electrodes were modified with impregnation of Zr and Ce metals. At first, HNO 3 insert ignore into journalissuearticles values(aq); and H 2 SO 4 insert ignore into journalissuearticles values(aq); solutions were compared as electrolytes with plain electrodes and H 2 SO 4 insert ignore into journalissuearticles values(aq); is defined as the optimum electrolyte medium insert ignore into journalissuearticles values(maximum H 2insert ignore into journalissuearticles values(g); production densities as 24.10xE -5 mL sec -1 and 87.22xE -5 mL sec -1 ,charge densities as 1137.40xE -4 C sec -1 and 2976.19xE -4 C sec -1 and current densities as 45.68xE -7 i sec -1 and 165.34xE -7 i sec -1 for 0.10 M HNO 3 insert ignore into journalissuearticles values(aq); and H 2 SO 4 insert ignore into journalissuearticles values(aq); solutions respectively);. Then all of these modified electrodes were utilized to the electrolysis system and compared in the case of H 2insert ignore into journalissuearticles values(g); production yield, charge and current density values. The best performances were obtained from Ce modified electrode insert ignore into journalissuearticles values(maximum H 2 insert ignore into journalissuearticles values(g); production density as 125.00xE -5 mL sec -1 , charge density as 4265.24xE -4 C sec -1 and current density as 236.96xE -7 i sec -1  in 0.10 M of H 2 SO 4 insert ignore into journalissuearticles values(aq); electrolyte);. Hydrogen is one of the most promising, clean and sustainable energy carrier, that can be produced effectively by the usage of Ce modified battery coal.
Keywords : energy, battery, hydrogen, electrolysis, cerium