Issue 82, 2021

Reversible electrochemical conversion from selenium to cuprous selenide

Abstract

Using elemental selenium as an electrode, the redox-active Cu2+/Cu+ ion is reversibly hosted via the sequential conversion reactions of Se → CuSe → Cu3Se2 → Cu2Se. The four-electron redox process from Se to Cu2Se produces a high initial specific capacity of 1233 mA h g−1 based on the mass of selenium alone or 472 mA h g−1 based on the mass of Cu2Se, the fully discharged product.

Graphical abstract: Reversible electrochemical conversion from selenium to cuprous selenide

Supplementary files

Article information

Article type
Communication
Submitted
22 Jul 2021
Accepted
09 Sep 2021
First published
17 Sep 2021

Chem. Commun., 2021,57, 10703-10706

Reversible electrochemical conversion from selenium to cuprous selenide

S. K. Sandstrom, H. Jiang, M. Lucero, Y. Xu, T. C. Gallagher, M. Cao, Z. Feng and X. Ji, Chem. Commun., 2021, 57, 10703 DOI: 10.1039/D1CC03983K

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