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Article | REF: RE258 V1

Using ALD for photoelectrolysis of water

Author: Lionel SANTINACCI

Publication date: October 10, 2016

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1. Photoelectrochemical cell

1.1 Photoelectrochemical cell operating principle

The photoelectrolysis of water consists in dissociating water in two half-reactions. Hydrogen is produced by reduction, the hydrogen evolution reaction (HER) at the photocathode (Equation (1) ), and oxygen is generated at the photoanode by oxidation (Equation (2) ), the oxygen evolution reaction (OER). The overall reaction is given by Equation (3) .

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Photoelectrochemical cell
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