▎ 摘　　要

NOVELTY - A porous electrode of electrolytic cell, comprising an electrolytic cell main body, a counter electrode, a reference electrode and a working electrode, an electrolytic cell main body is provided with a reaction cavity and provided with a water inlet pipe and a water outlet pipe connected with reaction cavity, counter electrode, the reference electrode and the working electrode are respectively connected to the reaction cavity, a working electrode comprising a porous graphene sponge portion, electrolytic cell main body is provided with a first sealing joint, said first sealing joint comprises front end and back end, front end of the first sealing joint and the porous graphene sponge portion abuts. a first sealing joint of the back end of the water inlet pipe joint, a first sealing joint and the electrolytic cell main body in dismountable connection, through the disassembly of the first sealing joint, can direct the porous graphene sponge portion, so as to realize the purpose of the sponge cleaning porous graphene to the working electrode, which greatly increases the practicability of the electrolytic cell of the porous electrode.