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How Much Supporting Electrolyte Is Required to Make a Cyclic Voltammetry Experiment Quantitatively "Diffusional"? A Theoretical and Experimental Investigation

Abstract:

Theory is presented for cyclic voltammetry at a hemispherical electrode under conditions where the electric field is nonzero and migration is significant to mass transport. The nonlinear set of differential equations formed by combining the Nernst-Planck equation and the Poisson equation are solved numerically, subject to a zero-field approximation at the electrode surface. The effects on the observed voltammetry of the electrode size, scan rate, diffusion coefficient of electroactive and sup...

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Publication status:
Published

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Publisher copy:
10.1021/jp901628h

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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Physical and Theoretical Chem
Role:
Author
Journal:
JOURNAL OF PHYSICAL CHEMISTRY C
Volume:
113
Issue:
25
Pages:
11157-11171
Publication date:
2009-06-25
DOI:
EISSN:
1932-7455
ISSN:
1932-7447
URN:
uuid:721a9231-4f57-450a-98dc-bc7b4cc98607
Source identifiers:
41232
Local pid:
pubs:41232
Language:
English

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