The production of hydrogen by electrolyzed water is an important means for industrial production of H2, and a product having a purity of 99% to 99.9% can be obtained. The core part of the water electrolysis hydrogen production equipment is the electrolysis tank, and the electrode material is the key to the electrolysis tank. As current passes between the electrodes, hydrogen is produced on the cathode and oxygen is produced on the anode.
The performance of the electrode determines the voltage level of the water electrolysis and the energy consumption to a large extent, and directly affects the cost. The process is simple, no pollution, but the power consumption is large. The electrolytic cell is filled with an electrolyte, and the electrolytic cell is divided into an anode chamber and a cathode chamber by a separator, and electrodes are respectively disposed in each chamber. Since the conductivity of water is small, an aqueous solution (concentration of about 15%) is added to the electrolyte. When a current is passed between the electrodes at a certain voltage, hydrogen gas is generated at the cathode, and oxygen is generated at the anode, thereby achieving electrolysis of water. Theoretically, platinum-based metals are *ideal metals as water electrolysis electrodes, but in practice, in order to reduce equipment and production costs, and considering electrolysis efficiency, anode materials using titanium-based coatings are ideal.