1
|
Sazou D, Pavlidou M, Pagitsas M. Potential oscillations induced by localized corrosion of the passivity on iron in halide-containing sulfuric acid media as a probe for a comparative study of the halide effect. J Electroanal Chem (Lausanne) 2012. [DOI: 10.1016/j.jelechem.2012.04.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
2
|
Lopes PP, Ticianelli EA. The CO tolerance pathways on the Pt–Ru electrocatalytic system. J Electroanal Chem (Lausanne) 2010. [DOI: 10.1016/j.jelechem.2009.06.011] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
3
|
Quantitative Modeling of the Oscillatory Electrooxidation of Hydrogen on Pt in the Presence of Poisons. ACTA ACUST UNITED AC 2009. [DOI: 10.1524/zpch.217.4.365.20387] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
A quantitative model of oscillations observed during hydrogen oxidation on platinum in the presence of electrosorbing metal ions and specifically adsorbing anions is presented and the model predictions are compared with experiments. Mass and charge balances of all reactants lead in a first step to a seven variable model which is governed by reaction steps that have been widely studied. We demonstrate that attractive interactions between metal and halide ions on the electrode surface, which were recently reported, are crucial for the observed dynamics. The model parameters were almost exclusively taken out of the literature. The model is then reduced to its minimal form without losing dynamic features arriving at a four variable system. Experimental time series of three of the four variables of the model and measured bifurcation diagrams are presented. It is shown that the integrated time evolution and the calculated bifurcation diagrams of the model agree almost quantitatively with the experiment.
Collapse
|
4
|
Sazou D, Pavlidou M, Pagitsas M. Temporal patterning of the potential induced by localized corrosion of iron passivity in acid media. Growth and breakdown of the oxide film described in terms of a point defect model. Phys Chem Chem Phys 2009; 11:8841-54. [DOI: 10.1039/b906488e] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
5
|
Koper MT. Oscillations and Complex Dynamical Bifurcations in Electrochemical Systems. ADVANCES IN CHEMICAL PHYSICS 2007. [DOI: 10.1002/9780470141519.ch2] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
6
|
Mukouyama Y, Kikuchi M, Samjeské G, Osawa M, Okamoto H. Potential Oscillations in Galvanostatic Electrooxidation of Formic Acid on Platinum: A Mathematical Modeling and Simulation. J Phys Chem B 2006; 110:11912-7. [PMID: 16800494 DOI: 10.1021/jp061129j] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have modeled temporal potential oscillations during the electrooxidation of formic acid on platinum on the basis of the experimental results obtained by time-resolved surface-enhanced infrared absorption spectroscopy (J. Phys. Chem. B 2005, 109, 23509). The model was constructed within the framework of the so-called dual-path mechanism; a direct path via a reactive intermediate and an indirect path via strongly bonded CO formed by dehydration of formic acid. The model differs from earlier ones in the intermediate in the direct path. The reactive intermediate in this model is formate, and the oxidation of formate to CO2 is rate-determining. The reaction rate of the latter process is represented by a second-order rate equation. Simulations using this model well reproduce the experimentally observed oscillation patterns and the temporal changes in the coverages of the adsorbed formate and CO. Most properties of the voltammetric behavior of formic acid, including the potential dependence of adsorbate coverages and a negative differential resistance, are also reproduced.
Collapse
Affiliation(s)
- Yoshiharu Mukouyama
- College of Science and Engineering, Tokyo Denki University, Hatoyama, Saitama 350-0394, Japan.
| | | | | | | | | |
Collapse
|
7
|
Nakanishi S, Sakai SI, Nishimura K, Nakato Y. Layer-by-Layer Electrodeposition of Copper in the Presence of o-Phenanthroline, Caused by a New Type of Hidden NDR Oscillation with the Effective Electrode Surface Area as the Key Variable. J Phys Chem B 2005; 109:18846-51. [PMID: 16853425 DOI: 10.1021/jp0513871] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Electrochemical deposition of copper (Cu) from aqueous acidic Cu2+ solutions with o-phenanthroline (o-phen) shows both potential and current oscillations, together with a (partially hidden) N-shaped negative differential resistance (N-NDR), indicating that the oscillations are classified into hidden N-NDR (or HN-NDR) oscillations. The color and the surface morphology of Cu deposits oscillate in synchronization with the potential and current oscillations. Microscopic inspection has shown that dense round Cu leaflets, which look gray, grow in the positive side of the potential oscillation or in the high-current state of the current oscillation, whereas thin Cu leaflets, which look black, grow in the opposite-side stages of the potential and current oscillations, thus finally resulting in a layered Cu deposit with the layer thickness of about 5 microm. The appearance of the NDR is explained to be due to adsorption of the reduced form of a [Cu(II)(o-phen)2]2+ complex, which suppresses the Cu electrodeposition. The increase in the effective electrode surface area by growth of thin Cu leaflets, on the other hand, causes a current increase that can hide the NDR. This NDR-hiding mechanism is of a new type and the present oscillation is regarded as a new-type of HN-NDR oscillator.
Collapse
Affiliation(s)
- Shuji Nakanishi
- Division of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | | | | | | |
Collapse
|
8
|
Varela H, Bonnefont A, Krischer K. Trapping Electrochemical Oscillations between Self-Organized Potential Walls. Chemphyschem 2003; 4:1348-51. [PMID: 14714385 DOI: 10.1002/cphc.200300922] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hamilton Varela
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4-6, 14195 Berlin, Germany
| | | | | |
Collapse
|
9
|
Varela H, Krischer K. Nonlinear phenomena during electrochemical oxidation of hydrogen on platinum electrodes. Catal Today 2001. [DOI: 10.1016/s0920-5861(01)00347-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
10
|
Mukouyama Y, Nakanishi S, Konishi H, Ikeshima Y, Nakato Y. New-Type Electrochemical Oscillation Caused by Electrode−Surface Inhomogeneity and Electrical Coupling as Well as Solution Stirring through Electrochemical Gas Evolution Reaction. J Phys Chem B 2001. [DOI: 10.1021/jp012461s] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yoshiharu Mukouyama
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Shuji Nakanishi
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Hidemitsu Konishi
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Yusuke Ikeshima
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Yoshihiro Nakato
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| |
Collapse
|
11
|
Lee J, Strasser P, Eiswirth M, Ertl G. On the origin of oscillations in the electrocatalytic oxidation of HCOOH on a Pt electrode modified by Bi deposition. Electrochim Acta 2001. [DOI: 10.1016/s0013-4686(01)00744-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
12
|
Naito M, Tanaka N, Okamoto H. General relationship between complex impedance and linear stability in electrochemical systems. J Chem Phys 1999. [DOI: 10.1063/1.480345] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
13
|
Mechanistic classification of electrochemical oscillators — an operational experimental strategy. J Electroanal Chem (Lausanne) 1999. [DOI: 10.1016/s0022-0728(99)00412-x] [Citation(s) in RCA: 160] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
14
|
Modeling galvanostatic potential oscillations in the electrocatalytic iodate reduction system. J Electroanal Chem (Lausanne) 1999. [DOI: 10.1016/s0022-0728(98)00386-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
15
|
Strasser P, Lübke M, Parmanada P, Eiswirth M, Ertl G. Mechanistic Analysis of Electrochemical Oscillators Using Derivative Feedback Control Techniques. J Phys Chem B 1998. [DOI: 10.1021/jp9801572] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- P. Strasser
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin (Dahlem), Germany
| | - M. Lübke
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin (Dahlem), Germany
| | - P. Parmanada
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin (Dahlem), Germany
| | - M. Eiswirth
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin (Dahlem), Germany
| | - G. Ertl
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin (Dahlem), Germany
| |
Collapse
|
16
|
Current oscillations in the reduction or oxidation of some anions involving convection mass transfer. J Electroanal Chem (Lausanne) 1997. [DOI: 10.1016/s0022-0728(97)00344-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
17
|
Berthier F, Diard JP, Nugues S. On the nature of the spontaneous oscillations observed for the Koper-Sluyters electrocatalytic reaction. J Electroanal Chem (Lausanne) 1997. [DOI: 10.1016/s0022-0728(97)00254-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
18
|
Bieniasz LK. ELSIM—a problem-solving environment for electrochemical kinetic simulations. Version 3.0-solution of governing equations associated with interfacial species, independent of spatial coordinates or in one-dimensional space geometry. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0097-8485(96)00016-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
19
|
Koper MT. Stability study and categorization of electrochemical oscillators by impedance spectroscopy. J Electroanal Chem (Lausanne) 1996. [DOI: 10.1016/0022-0728(95)04391-8] [Citation(s) in RCA: 91] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
20
|
Okamoto H, Tanaka N, Naito M. Modelling temporal kinetic oscillations for electrochemical oxidation of formic acid on Pt. Chem Phys Lett 1996. [DOI: 10.1016/0009-2614(95)01295-8] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
21
|
Experimental and theoretical description of potentiostatic current oscillations during H2 oxidation. J Electroanal Chem (Lausanne) 1995. [DOI: 10.1016/0022-0728(95)04275-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|