2009
DOI: 10.1021/jp902311h
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Abstract: The voltammetric responses of Pt disk electrodes 5-50 nm in radii in the presence of excess inert electrolyte were investigated to verify the applicability of the conventional diffusion-based voltammetric theory to nanoscale electrochemical interfaces. A so-called "inverted heat-sealing" procedure was introduced in the electrode fabrication process to eliminate the possible tiny interstice between the glass sheath and electrode wire that could severely distort the voltammetric curves of nanometer-szied electro… Show more

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Cited by 40 publications
(64 citation statements)
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“…As having been shown in recent experimental and theoretical studies [5,14,19], the voltammetric responses of nanoelectrodes, at least the limiting current densities in the presence of the excess of the supporting electrolyte, may deviate inconspicuously in quantity from the predication of the conventional voltammetric theory. The electrode-size dependent voltammetric features may only become visible when the electrode size is below 10 nm [14].…”
Section: Introductionmentioning
confidence: 93%
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“…As having been shown in recent experimental and theoretical studies [5,14,19], the voltammetric responses of nanoelectrodes, at least the limiting current densities in the presence of the excess of the supporting electrolyte, may deviate inconspicuously in quantity from the predication of the conventional voltammetric theory. The electrode-size dependent voltammetric features may only become visible when the electrode size is below 10 nm [14].…”
Section: Introductionmentioning
confidence: 93%
“…(16) has been justified by a number of microelectrode studies [25,29,36]. However, the limiting transport currents on nanometer-sized electrodes seem to deviate from the predication of this equation, implying that the electroneutrality assumption may be no longer valid at interfaces of such small electrodes [9][10][11][12]14]. Fig.…”
Section: On the Validity Of The Electroneutralitymentioning
confidence: 99%
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“…The development of practical nanoelectrochemical systems in the last decade [5,6] has led to renewed interest in the fundamental theories of electron transfer kinetics and mass transport dynamics, particularly in the context of analytical techniques such as voltammetry [7][8][9][10][11][12][13][14][15][16]. The nanoscale is especially interesting because in this limit the size of a normal depletion layer approaches the Debye length, and so the charged double layer and the depletion layer become interlinked.…”
Section: Introductionmentioning
confidence: 99%