Transient Voltammetry at Electrodes Modified with a Random Array of Spherical Nanoparticles: Theory
The simple one-electron reduction, A + e- ⇄ B, is studied at a random array of spherical nanoparticles attached to a planar electrode. Electron transfer is assumed to occur exclusively on the surface of the nanoparticles; the electrode simply acts as a conductive support. Voltammetry is simulated us...
| Główni autorzy: | , |
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| Format: | Journal article |
| Język: | English |
| Wydane: |
2010
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| _version_ | 1826304966346670080 |
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| author | Belding, SR Compton, R |
| author_facet | Belding, SR Compton, R |
| author_sort | Belding, SR |
| collection | OXFORD |
| description | The simple one-electron reduction, A + e- ⇄ B, is studied at a random array of spherical nanoparticles attached to a planar electrode. Electron transfer is assumed to occur exclusively on the surface of the nanoparticles; the electrode simply acts as a conductive support. Voltammetry is simulated using the alternating direction implicit (ADI) variant of the finite difference method. The diffusion-controlled chronoamperometric response is studied as a function of nanoparticle surface coverage, and the cyclic voltammetry is studied as a function of electrochemical rate constant, voltage scan rate, and nanoparticle surface coverage. Also considered is the extent to which a random array of spherical nanoparticles can usefully be approximated as an array of discs with an equal surface coverage. © 2010 American Chemical Society. |
| first_indexed | 2024-03-07T06:25:44Z |
| format | Journal article |
| id | oxford-uuid:f43aed0b-f653-459a-ab2d-73a57b8865e0 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:25:44Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:f43aed0b-f653-459a-ab2d-73a57b8865e02022-03-27T12:18:06ZTransient Voltammetry at Electrodes Modified with a Random Array of Spherical Nanoparticles: TheoryJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f43aed0b-f653-459a-ab2d-73a57b8865e0EnglishSymplectic Elements at Oxford2010Belding, SRCompton, RThe simple one-electron reduction, A + e- ⇄ B, is studied at a random array of spherical nanoparticles attached to a planar electrode. Electron transfer is assumed to occur exclusively on the surface of the nanoparticles; the electrode simply acts as a conductive support. Voltammetry is simulated using the alternating direction implicit (ADI) variant of the finite difference method. The diffusion-controlled chronoamperometric response is studied as a function of nanoparticle surface coverage, and the cyclic voltammetry is studied as a function of electrochemical rate constant, voltage scan rate, and nanoparticle surface coverage. Also considered is the extent to which a random array of spherical nanoparticles can usefully be approximated as an array of discs with an equal surface coverage. © 2010 American Chemical Society. |
| spellingShingle | Belding, SR Compton, R Transient Voltammetry at Electrodes Modified with a Random Array of Spherical Nanoparticles: Theory |
| title | Transient Voltammetry at Electrodes Modified with a Random Array of Spherical Nanoparticles: Theory |
| title_full | Transient Voltammetry at Electrodes Modified with a Random Array of Spherical Nanoparticles: Theory |
| title_fullStr | Transient Voltammetry at Electrodes Modified with a Random Array of Spherical Nanoparticles: Theory |
| title_full_unstemmed | Transient Voltammetry at Electrodes Modified with a Random Array of Spherical Nanoparticles: Theory |
| title_short | Transient Voltammetry at Electrodes Modified with a Random Array of Spherical Nanoparticles: Theory |
| title_sort | transient voltammetry at electrodes modified with a random array of spherical nanoparticles theory |
| work_keys_str_mv | AT beldingsr transientvoltammetryatelectrodesmodifiedwitharandomarrayofsphericalnanoparticlestheory AT comptonr transientvoltammetryatelectrodesmodifiedwitharandomarrayofsphericalnanoparticlestheory |