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DOE OSTI · 1982185

Reversible electrochemical conversion from selenium to cuprous selenide

Sandstrom, Sean K.·Jiang, Heng·Lucero, Marcos·Xu, Yunkai·Gallagher, Trenton C.·Cao, Mengyuan·Feng, Zhenxing·Ji, Xiulei
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Abstract

Using elemental selenium as an electrode, the redox-active Cu 2+ /Cu + ion is reversibly hosted via the sequential conversion reactions of Se → CuSe → Cu 3 Se 2 → Cu 2 Se. Here, the four-electron redox process from Se to Cu 2 Se 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 Cu 2 Se, the fully discharged product.

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Sandstrom, Sean K., Jiang, Heng, Lucero, Marcos, Xu, Yunkai, Gallagher, Trenton C., Cao, Mengyuan, Feng, Zhenxing, Ji, Xiulei. 2021-09-17. Reversible electrochemical conversion from selenium to cuprous selenide. https://doi.org/10.1039/d1cc03983k

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