Enhancement of hydrogen production using dynamic magnetic field through water electrolysis

Abstract

Summary Static magnetic field (SMF) application in water electrolysis increases hydrogen production. However, the effect of the dynamic magnetic field (DMF) in water electrolysis is rarely studied. This study utilizes DMF to increase hydrogen production in water electrolysis. DMF was generated by rotating a plate‐shaped magnet. As a result, DMF produces 23.1 mL H2, which almost doubled the 12.1 mL H2 of SMF. DMF increases the chance of hydrogen formation by weakening the covalent bond, hydrogen bond, and increase the ion transfer mobility as a result of additional magnetic field strength. This phenomenon consistent with the Faraday's law where fluctuating magnetic field generates an electromotive force that increases electric current density. The high electric current density alters hydroxide ion mobility as the interchanging magnetic force field by DMF increases the ions collision chance. The additional magnetic force by DMF has aligned more water molecules than DMF. Consequently, more water molecule dipoles are exposed during electrolysis. Hence, DMF eases the water‐splitting process by shaking the water molecules, which continuously aligns the dipole and also energizes the water molecules. The energized water with higher kinetic energy is easier to split as the required ionization energy has reduced. This happens as the result of the spin‐pair magnetic energy conversion that is stimulated by external magnetic field. The increase in rotational speed of magnetic rods does not significantly increase hydrogen evolution reaction and lower the electrolysis efficiency. This indicates the presence of DMF is more important for water electrolysis performance than the rotational speed of DMF. Conclusively, DMF enhances hydrogen evolution reaction by an increase in water kinetic energy and increase in ion transfer chance through dipole exposition.

The Impact of Chaotic Flux Reflection Field on Hydrogen Evolution Reaction of Water Electrolysis

“…Photoelectrochemical EMF Not reported 0.5T [38] This study contributes to provide enhancement in magnetic field assisted electrolysis. The chaotic dynamic magnetic flux have better performance compared to the EMF and DMF by [22] in equal magnitude of magnetic field. The highly sophisticated technique of magnetic field such as foam elec-trode exposed SMF and Photochemical SMF have been developed.…”

“…DMF exposure rapidly increase HER multiple times compared with static EMF. DMF obtained by rotating the magnetic field force such as rotating a magnetic bar using an electric motor [22] . The alternating frequency of the magnetic field is more significant to increase the HER rate the strength of the magnetic field.…”

“…Study of EMF and DMF assisted water electrolysis by [3] and [22] controls the HER rate through ordered flux magnets. This study provides an alternative technique to improve the HER rate of water electrolysis through chaotic flux from irregular shaped magnetic reflection.…”

The analysis of Si/Al ratio on CGA decomposition in Indonesian traditional Kreweng pottery coffee roaster to maximize coffee acidity

“…The high concentration of alumina in the catalyst alters the magnetic properties of the pottery catalyst. The exposure of external magnetic field to the water molecule triggers the dipole homogenization [48]. Therefore, strong magnetic field will enforce the water molecules to move in the same direction.…”

Research on application of hydrogen production through water electrolysis

“…Published by Francis Academic Press, UK -58-energy cells provided by fuel cells in other fields, such as mining and construction, can provide feasible solutions to reduce pollution and facility costs. [10,12]…”