<p>A variant of a reversible photoelectrochemical system is proposed. A CdSe photoanode is used, with the electrolyte in the anode compartment based on the K<sub>3</sub>[Fe(CN)<sub>6</sub>]/K<sub>4</sub>[Fe(CN)<sub>6</sub>] redox system. In the cathode compartment, a redox system based on sulfur polysulfides is used. Open-circuit voltage is up to 0.90&#xa0;V, and short-circuit current density for the illuminated surface of the photoanode is up to 5&#xa0;mA/cm<sup>2</sup>. There is problem of K<sub>3</sub>[Fe(CN)<sub>6</sub>] photodegradation.</p> Graphical abstract <p></p>

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Photoelectrochemical cell with the CdSe photoanode

  • Sergii Chivikov,
  • Igor Rusetskyi,
  • Andrii Davydov,
  • Youzheng Wu,
  • Ruopeng Li,
  • Peixia Yang

摘要

A variant of a reversible photoelectrochemical system is proposed. A CdSe photoanode is used, with the electrolyte in the anode compartment based on the K3[Fe(CN)6]/K4[Fe(CN)6] redox system. In the cathode compartment, a redox system based on sulfur polysulfides is used. Open-circuit voltage is up to 0.90 V, and short-circuit current density for the illuminated surface of the photoanode is up to 5 mA/cm2. There is problem of K3[Fe(CN)6] photodegradation.

Graphical abstract