Reversible zn metal anodes enabled by trace amounts of underpotential deposition initiators

HIGHLIGHTS

SUMMARY

    Taking Ni2 + additive as an example, such a metal with higher work function (5.15 eV) and reduction potential ( 0.257 V vs. SHE) than Zn (4.33 eV and 0.76 V vs. SHE) would preferentially deposit and enable UPD of Zn on Ni, thus facilitating nucleation and growth of Zn uniformly, exhibiting smooth Zn surface without apparent dendrite or byproduct formation. This indicates that the deposition of_(sub)monolayer Zn atoms on Ni is easier than on Zn. The transition barrier when the Zn atom transfer on the Ni or Zn slab . . .

     

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