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Hydrogen Production by Water Electrolysis with Low Power and High Efficiency Based on Pre‐Magnetic Polarization

Abstract

In this paper, a method of efficient hydrogen production using low‐power electrolysis based on pre‐magnetic polarization was proposed in order to improve the rate of hydrogen produc‐ tion by water electrolysis, with reduced energy consumption, molecular polarity, and stress–strain characteristics of distilled water under the condition of a pre‐magnetic field. By constructing a mi‐ crophysical model of hydrogen proton energy‐level transition and a macroscopic mathematical model corresponding to magnetization vector‐polarization hydrogen proton concentration in the pre‐magnetic field, the ionic conductivity, electrolyte current density, interelectrode voltage, and hydrogen production efficiency under a varying magnetic field were qualitatively and quantita‐ tively analyzed. In addition, an adjustable pre‐magnetic polarization hydrolyzing hydrogen pro‐ duction test platform was set up to verify the effectiveness of the proposed method. The repeated test results, within a magnetic field strength range of 0–10,000 GS, showed that the conductivity of distilled water after pre‐magnetic polarization treatment increased by 2–3 times, the electrolytic current density of the PEM (Proton Exchange Membrane) increased with increasing magnetic field strength, the voltage between the poles continuously decreased, and the hydrogen production rate was significantly improved. When the magnetic field strength reached 10,000 GS, the rate of hydro‐ gen production by the electrolysis of distilled water increased by 15%–20% within a certain period of time.

Funding source: This research was funded by National Natural Science Foundation of China, grant number 61901400; Sichuan Science and Technology Program, grant number 2021YFG0253.
Related subjects: Production & Supply Chain
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2022-03-03
2022-10-06
http://instance.metastore.ingenta.com/content/journal3240
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