Exploring the Impact of Chelating Agents on Copper Oxide Layer Formation and Morphology.

ABSTRACT: The morphological evolution of copper oxide surfaces during anodization was investigated using scanning electron microscopy (SEM), chronoamperometry, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The addition of ethylenediaminetetraacetic acid (EDTA) as a Cu²⁺ chelating agent near the anode slows key mechanistic steps, providing insight into the factors driving the formation of crystalline Cu(OH)₂ nanoneedles. The correlation of chronoamperometric data with SEM images revealed a four-stage process, beginning with the formation of an initial passive oxide layer, followed by nucleation. The comprehensive analysis of experimental results demonstrates that while electrochemical processes are necessary to initiate nanoneedle growth, the subsequent gr

SUBMITTER: Gizinski D 

PROVIDER: S-EPMC12015832 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature