Microcalorimetry of Electrochemical Reactions at Submonolayer Conversions
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Rolf Schuster
We measured heat effects upon underpotential deposition or dissolution of a fraction of a monolayer of Cu on a Au surface. Temperature changes due to electrochemical reactions were pyroelectrically detected at the backside of a 100μm thin polycrystalline Au electrode. Pulsed electrochemical deposition or dissolution during 10ms intervals prevented significant loss of heat into the electrolyte on that time scale. The combination of both, i.e., pulsed electrochemical reactions at a thin electrode with low heat capacity, leads to unprecedented sensitivity. In addition, we compare the experimental temperature transients with the temperature evolution simulated for our experimental setup. Interferences stemming from mechanical deformation of the electrode foil due to potential-induced surface stress are also discussed.
© Oldenbourg Wissenschaftsverlag
Articles in the same Issue
- Preface: Für Konrad Georg Weil
- IR Voltage in Crevices during Crevice Corrosion and Sacrificial Cathodic Protection
- Synthesis of Zirconium Nanoparticles by Ultrafast Laser Ablation
- Resistive Switching in Ge0.3Se0.7 Films by Means of Copper Ion Migration
- Microcalorimetry of Electrochemical Reactions at Submonolayer Conversions
- On a New Phase Transition in the Cu/Au(111)/H2SO4 System
- In Situ Investigations on the Oxidation of Metals
- A High-Temperature Mössbauer Study of the Iron Nitrides
- Characterization of V-W and Mo-W Mixed Oxide Catalysts for the Selective Oxidation of Acrolein to Acrylic Acid
- The Oxidation Behaviour of Ruthenium in the Presence of Platinum and its Effect on the Electrocatalytic Activity of Pt-Ru Fuel Cell Catalysts
- Surface-Induced Dissociation as a Probe for the Energetics and Structure of Lead Clusters
- High Resolution FTIR and Diode Laser Supersonic Jet Spectroscopy of the N = 2 HF Stretching Polyad in (HF)2 and (HFDF): Hydrogen Bond Switching and Predissociation Dynamics
- A Refined All-Atom Model for the Ionic Liquid 1-n-Butyl 3-Methylimidazolium bis(Trifluoromethylsulfonyl)imide [bmim][Tf2N]
- A First-Principles Investigation of the Electronic Structure of Trivalent Rare Earth Ions in Gallium Nitride
Articles in the same Issue
- Preface: Für Konrad Georg Weil
- IR Voltage in Crevices during Crevice Corrosion and Sacrificial Cathodic Protection
- Synthesis of Zirconium Nanoparticles by Ultrafast Laser Ablation
- Resistive Switching in Ge0.3Se0.7 Films by Means of Copper Ion Migration
- Microcalorimetry of Electrochemical Reactions at Submonolayer Conversions
- On a New Phase Transition in the Cu/Au(111)/H2SO4 System
- In Situ Investigations on the Oxidation of Metals
- A High-Temperature Mössbauer Study of the Iron Nitrides
- Characterization of V-W and Mo-W Mixed Oxide Catalysts for the Selective Oxidation of Acrolein to Acrylic Acid
- The Oxidation Behaviour of Ruthenium in the Presence of Platinum and its Effect on the Electrocatalytic Activity of Pt-Ru Fuel Cell Catalysts
- Surface-Induced Dissociation as a Probe for the Energetics and Structure of Lead Clusters
- High Resolution FTIR and Diode Laser Supersonic Jet Spectroscopy of the N = 2 HF Stretching Polyad in (HF)2 and (HFDF): Hydrogen Bond Switching and Predissociation Dynamics
- A Refined All-Atom Model for the Ionic Liquid 1-n-Butyl 3-Methylimidazolium bis(Trifluoromethylsulfonyl)imide [bmim][Tf2N]
- A First-Principles Investigation of the Electronic Structure of Trivalent Rare Earth Ions in Gallium Nitride
