Discharge cavitation during microwave electrochemistry at micrometre-sized electrodes.
Microwave induced activation of electrochemical processes at microelectrodes (ca. 0.8 microm diameter) immersed in aqueous electrolyte media is shown to be driven by (i) continuous stable cavitation (giving rise to Faradaic current enhancements by up to three orders of magnitude) and (ii) transient discharge cavitation on the micros timescale (giving rise to cathodic plasma current spikes and more violent surface erosion effects).
Rassaei
Liza
L
Department of Chemistry, University of Bath, Bath, UK BA2 7AY.
Nebel
Michaela
M
Rees
Neil V
NV
Compton
Richard G
RG
Schuhmann
Wolfgang
W
Marken
Frank
F
D004563:Electrochemistry; D008839:Microelectrodes; D008872:Microwaves; D010084:Oxidation-Reduction; D010316:Particle Size; D010984:Platinum / Q000737:chemistry*; D017975:Ruthenium Compounds / Q000737:chemistry; D013499:Surface Properties
D017975:Ruthenium Compounds; D010984:Platinum