Scanning electron microscopy in the analysis of the activity of graphite electrodes

Sensitive determination of oligodeoxynucleotides by anodic adsorptive stripping voltammetry at surface-roughened glassy carbon electrode in the presence of copper

“…The authors reported that on polished GCE with 1 lm abrasion particles (1-lm GCE) only a few regions of copper deposits were visible. On the GCE mechanically roughened with 26 lm abrasion particles (26-lm GCE), the density of the large copper deposits was higher than that on the 1-lm GCE [23]. These results can explain why the stripping current density peaks of ahODN-Cu(I) complex increase with the increasing surface roughness of the mechanically treated GCE (Fig.…”

“…It was observed that mechanical surface roughening of graphite produces active sites on the surface [21,22]. Bodalbhai and Brajter-Toth [23] detected these active regions by electrodepositing copper. The authors reported that on polished GCE with 1 lm abrasion particles (1-lm GCE) only a few regions of copper deposits were visible.…”

Structural studies of electrochemically activated glassy carbon electrode: Effects of chloride anion on the redox responses of copper deposition

“…Metallic copper species often showed good reversible response without under-potential deposition at carbon electrode surface [41][42][43][44][45]. The redox processes of copper species were strongly affected by the presence of chloride anions in solution [43,45].…”

“…It has been reported that the nucleation density of metallic copper depositing at the pretreated carbon electrode could be used to quantify the activated properties of carbon electrode surface [41]. The early nucleation of metallic copper might reflect the surface complications of the PGCE.…”

Solid‐State Electrochemical Reactions of Electroactive Microparticles and Nanoparticles in a Liquid Electrolyte Environment

“…A recent study was conducted to determine the spatial surface activity of the boron-doped diamond (SiBDD) electrodes [145]. Whereas, the normal pretreatment of pyrolytic graphite or glassy carbon would increase the surface defect density, and in turn also the heterogeneous electron transfer rate [146], a combination of cyclic voltammetry and AFM showed the electrodeposited Pt microparticle growth to be independent (or at least less dependent) on the surface microstructure, and to be heavily influenced by the spatial distribution of the boron dopant [145].…”