▎ 摘　　要

NOVELTY - Producing electrode, comprises (a) preparing an electrode plate composed of titanium coated with platinum; (b) immersing the electrode plate in a graphene oxide solution and then hydrazine; (c) taking out the electrode plate and drying it; and (d) heat-treating the electrode plate at 300-400 degrees C. The graphene oxide solution contains 0.5-2 wt.% graphene oxide. USE - The method is useful to produce electrode for ionizer (claimed). ADVANTAGE - The method coats surface of electrode plate including anode and cathode of electrolytic cell, and improves durability of electrode by suppressing decrease in electrode efficiency.