ArticleNature communications2024
Radially distributed charging time constants at an electrode-solution interface.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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Who cites it
3 citing papers in PubMed.
- Versatile Electrochemiluminescence Imaging Platform for Multiplexed Biosensing and Point-of-Care Application.Chemical & biomedical imaging · 2026Article
- The Origin of the Constant Phase Element Behavior of Pt(111) Near the Potential of Zero Charge.ACS electrochemistry · 2026Article
- Development of spectroelectrochemical microscopy for the real-time study of electrochemical surface processes.Npj Materials degradation · 2026Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
An electrochemically homogeneous electrode-solution interface should be understood as spatially invariant in both terms of intrinsic reactivity for the electrode side and electrical resistance mainly for the solution side. The latter remains presumably assumed in almost all cases. However, by using optical microscopy to spatially resolve the classic redox electrochemistry occurring at the whole surface of a gold macroelectrode, we discover that the electron transfer occurs always significantly sooner (by milliseconds), rather than faster in essence, at the radial coordinates closer to the electrode periphery than the very center. So is the charging process when there is no electron transfer. Based on optical measurements of the interfacial impedance, this spatially unsynchronized electron transfer is attributed to a radially non-uniform distribution of solution resistance. We accordingly manage to eliminate the heterogeneity by engineering the solution resistance distribution. The revealed spatially-dependent charging time 'constant' (to be questioned) would help paint our overall fundamental picture of electrode kinetics.
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Registered trials
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