Origin of copper dissolution under electrocatalytic reduction conditions involving amines.

ABSTRACT: Cu dissolution has been identified as the dominant process that causes cathode degradation and losses even under cathodic conditions involving methylamine. Despite extensive experimental research, our fundamental and theoretical understanding of the atomic-scale mechanism for Cu dissolution under electrochemical conditions, eventually coupled with surface restructuring processes, is limited. Here, driven by the observation that the working Cu electrode is corroded using mixtures of acetone and methylamine even under reductive potential conditions (-0.75 V vs. RHE), we employed Grand Canonical density functional theory to understand this dynamic process under potential from a microscopic perspective. We show that amine ligands in solution directly chemisorb on the electrode, coordina

SUBMITTER: Guan Y 

PROVIDER: S-EPMC11331451 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature