Photoelectrochemical deposition of CoP on cuprous oxide photocathodes for solar hydrogen production

By Stern, Lucas-Alexandre; Liardet, Laurent; Mayer, Matthew T.; Morales-Guio, Carlos Gilberto; Gr
Published in Electrochimica Acta NULL 2017

Abstract

Abstract Photoelectrochemical (PEC) water splitting is an attractive and sustainable energy conversion method. In this work, cobalt phosphide (CoP) is photoelectrochemically deposited on a p-type cuprous oxide (p-Cu2O) photocathode for solar hydrogen production. Under visible light irradiation, the {PEC} assembly is active for hydrogen evolution, generating a current density of up to ?5.3 mA cm?2 and ?4.2 mA cm?2 in acidic and basic conditions at 0 V vs. the reversible hydrogen electrode (RHE).

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