Frequency spectroscopy of irreversible electrochemical nucleation kinetics

Journal Article · Tue Jan 01 00:00:00 EST 2013 · Nanoscale

DOI:https://doi.org/10.1039/c3nr03953f· OSTI ID:1115365

Kumar, Amit ^[1]; Chen, Chi ^[2]; Arruda, Thomas M ^[3]; Jesse, Stephen ^[3]; Ciucci, Francesco ^[4]; Kalinin, Sergei V ^[3]

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1. Oak Ridge National Laboratory (ORNL)
2. Hong Kong University of Science & Technology
3. ORNL
4. Harvard-Smithsonian Center for Astrophysics

An approach is developed for probing the thermodynamics and kinetics of the irreversible electrochemical reactions on solid surfaces based on frequency-voltage spectroscopy. For a model Li-ion conductor surface, the two regimes for bias-controlled behavior are demonstrated and ascribed to the difference in the critical nucleus size. The electrostatic and electrochemical phenomena at tip-surface junction are analyzed. These studies suggest an experimental pathway for exploring local electrochemical activity in solids.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1115365
• Journal Information: Nanoscale, Vol. 5, Issue 23; ISSN 2040-3364
• Publisher: Royal Society of Chemistry
• Country of Publication: United States
• Language: English