Quantitative Voltammetry in Weakly Supported Media: Effects of the Applied Overpotential and Supporting Electrolyte Concentration on the One Electron Oxidation of Ferrocene in Acetonitrile

被引：35

作者：

Limon-Petersen, Juan G. ^{[1
]}

Streeter, Ian ^{[1
]}

Rees, Neil V. ^{[1
]}

Compton, Richard G. ^{[1
]}

机构：

[1] Univ Oxford, Dept Chem, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

DILUTE-SOLUTIONS; MICROELECTRODES; SIMULATION;

D O I：

10.1021/jp809302m

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Chronoamperometry is reported on the one electron oxidation of 3 mM ferrocene in acetonitrile using a 300 +/- 5 mu m radius gold hemisphere electrode. Varying concentrations of supporting electrolyte (tetra-n-butylammonium perchlorate) are used ranging from the fully supported (100 mM) to the almost completely unsupported (0.1 mM). The response is simulated using the Nernst-Plank-Poisson system of equations and excellent agreement between theory and experiment noted, so vindicating a recent theory (J. Phys. Chem. C. 2008, 112, 13716) for voltammetry in weakly supported media.

引用

页码：333 / 337

页数：5

共 3 条

[1] Differential pulse techniques in weakly supported media: Changes in the kinetics and thermodynamics of electrode processes resulting from the supporting electrolyte concentration
Wang, Yijun
Barnes, Edward O.
Laborda, Eduardo
Molina, Angela
Compton, Richard G.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2012, 673 : 13 - 23
[2] Quantitative Voltammetry in Weakly Supported Media. Two Electron Transfer, Chronoamperometry of Electrodeposition and Stripping for Cadmium at Microhemispherical Mercury Electrodes
Limon-Petersen, Juan G.
Dickinson, Edmund J. F.
Rees, Neil V.
Compton, Richard G.
JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (34): : 15320 - 15325
[3] Quantitative Voltammetry in Weakly Supported Media. Chronoamperometric Studies on Diverse One Electron Redox Couples Containing Various Charged Species: Dissecting Diffusional and Migrational Contributions and Assessing the Breakdown of Electroneutrality
Limon-Petersen, Juan G.
Han, Jeongmin T.
Rees, Neil V.
Dickinson, Edmund J. F.
Streeter, Ian
Compton, Richard G.
JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (05): : 2227 - 2236

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