Effect of electrode spacing on hydrogen production using a home-made alkaline electrolyzer

The paper presents an experimental study of hydrogen production by alkaline water electrolysis using a homemade alkaline electrolyzer. The effect of electrode spacing on hydrogen production was investigated. The results demonstrated that electrode spacing plays a significant role in hydrogen production. Smaller electrode spacing distance increases the interaction between the ionic electrolyte and the immersed electrode thereby increasing the rate of the electrochemical reaction, hydrogen production, and efficiency.