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Electrocatalytic Trends on IB Group Metals: The Oxygen Reduction Reaction
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B. B. Blizanac
Published/Copyright:
September 25, 2009
The rotating ring disk method (RRDE) is applied to investigate the oxygen reduction reaction (ORR) on Cu(111), Ag(111) and Au(111) single crystal surfaces in alkaline and acidic media. Independently of the pH of solution, we found that at low overpotentials the order of activity increases from Cu(111) to Ag(111) to Au(111). At high overpotentials, however, Cu(111) and Ag(111) are much more active than Au(111). An interpretation of the variation in activity is presented based on the premise that the rate of the ORR is controlled by two factors: a chemical-dependent part, Δ Gθ* = Δ G0* + γ Δ GΘ0Θad, and the pre-exponential part which is determined by the adsorption of spectator species (Θad) and the availablitiy of bare metal sites, i.e., the (1-Θad) term.
Keywords: Oxygen Reduction Reaction; Electrocatalytic Trends; IB Group Metals; Potential of Zero Charge; pH Effects
Received: 2007-7-20
Accepted: 2007-7-23
Published Online: 2009-9-25
Published in Print: 2007-10-1
© Oldenbourg Wissenschaftsverlag
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Keywords for this article
Oxygen Reduction Reaction;
Electrocatalytic Trends;
IB Group Metals;
Potential of Zero Charge;
pH Effects
Articles in the same Issue
- Preface: Dieter Kolb zum 65. Geburtstag
- Precursor Adsorption of SbBr3 on Au(111) and Au(100) for Antimony Underpotential Deposition in a BMIBF4 Ionic Liquid – A Comparison with SbCl3
- Electroreduction of Nitrate at Copper Electrodes and Copper-PANI Composite Layers
- Potential Program Invariant Representation of Diffusion–Adsorption Related Voltammograms
- A Way for Determining the Effective Three Phase Boundary Width of Solid State Electrochemical Reactions from the Primary and Secondary Current Distribution at Microelectrodes
- Carbon Nanotubes and Electrochemistry
- Pd3Fe and Pt Monolayer-Modified Pd3Fe Electrocatalysts for Oxygen Reduction
- Electrochemical Nucleation and Growth Kinetics of Nanostructured Gold on Rotating Disc and Stationary Electrodes
- Theoretical Trends in Particle Size Effects for the Oxygen Reduction Reaction
- Metal Deposition by Inducing a Microgalvanic Cell with the Scanning Electrochemical Microscope (SECM)
- Formation of a Molecular Glue Based on the Electrochemical Reduction of 4-Hydroxyphenyldiazonium for the Attachment of Thin Sol–Gel Film on Glassy Carbon
- Confined Spatio-Temporal Chaos During Metal Electrodissolution: Simulations
- Comparative Study of Thymine Adsorption on Cu- and Ag-Adlayers on Au(111) Electrodes
- The Adsorption and Growth of Copper on As-Terminated GaAs(001): Physical Vapour versus Electrochemical Deposition
- Monte Carlo Simulation of Kinetically Limited Electrodeposition on a Surface with Metal Seed Clusters
- Normalized Differential Reflectance Spectroscopy at Polycrystalline Platinum Electrodes in Aqueous Acidic Electrolytes: Quantitative Aspects
- Hydrogen Adsorption on Activated Platinum Electrodes – An Electrochemical Impedance Spectroscopy Study
- Voltammetry and Electrocatalysis of Achromobacter Xylosoxidans Copper Nitrite Reductase on Functionalized Au(111)-Electrode Surfaces
- Electrocatalytic Trends on IB Group Metals: The Oxygen Reduction Reaction
- DFT Studies on the Nature of Coadsorbates on SO42-/Au(111)
- In Situ Scanning Tunnelling Microscopy in Ionic Liquids: Prospects and Challenges
