Half-Electrolysis of Water with the Aid of a Supercapacitor Electrode.

Half-electrolysis runs one desirable half-cell reaction with the aid of a counter supercapacitor electrode which replaces the other unwanted half-cell reaction occurred inevitably in conventional electrolysis. Herein, it is developed to complete the whole cell reaction of water electrolysis, in alternative steps, with a capacitive activated carbon (AC) electrode and an electrolysis Pt electrode. When positively charging the AC electrode, a hydrogen evolution reaction occurs at the Pt electrode. By reversing the current, the charge stored in the AC electrode is discharged to assist the oxygen evolution reaction on the same Pt electrode. Consecutive completion of the two processes realizes the overall reaction of water electrolysis. This strategy leads to stepwise production of H

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© 2023 The Authors. Published by American Chemical Society.

Déclaration de conflit d'intérêts

The authors declare the following competing financial interest(s): The authors declare the competing financial interests with CN patents (201910155530.6) and (201910155553.7).