I am currently engaged in the preliminary phase of examining the viability of a hydrogen generation system through the electrolysis of seawater.
I have some questions regarding the process,namely -
1)Can untreated seawater be electrolysed without any electrolyte?
2)What amount of electrical current and voltage would be the most conducive for the evolution of gaseous hydrogen?
3)Upon electrolysis what products would evolve? I am aware that theoretically these should be H2 and 02 gases in a 2:1 ratio but owing to the presence of dissolved salts I have also learnt that certain gases such as chlorine and salts such as sodium hypochlorite(NaOCl) would also precipitate but I am unclear as to the quantity and types of salts that would result from seawater electrolysis.
4)What methods and techniques such as special material electrodes could help in preventing or reducing the precipitation of salts or undesirable gases such as chlorine as these are a corrosive and unneccesary byeproduct.
5)What would be the volumes of hydrogen and oxygen evolved from a given volume of seawater and can these two be separately collected as the primary purpose is the generation of hydrogen?
Any advice or opinions regarding any or all of these aspects are welcome.
Thank you
|
Comments rated to be Good Answers: