Zugehörige Institution(en) am KIT | Institut für Angewandte Materialien – Elektrochemische Technologien (IAM-ET1) |
Publikationstyp | Forschungsdaten |
Publikationsdatum | 18.04.2024 |
Erstellungsdatum | 13.02.2024 |
Identifikator | DOI: 10.35097/1853 KITopen-ID: 1000165631 |
HGF-Programm | 38.03.02 (POF IV, LK 01) Power-based Fuels and Chemicals |
Lizenz | Creative Commons Namensnennung – Weitergabe unter gleichen Bedingungen 4.0 International |
Schlagwörter | electrocatalysis, copper, cyclic voltammetry, kinetic modeling, operating conditions |
Liesmich | Experimental Details: Cyclic voltammetry (CV) experiments were conducted under both ambient conditions (25°C, 101.3 kPa) and elevated pressures (5 bar, 10 bar, and 25 bar). For ambient conditions, a three-electrode glass cell filled with CO2-saturated 0.1 M TBABF4 in acetonitrile electrolyte solution was employed. A polished planar copper disk served as the working electrode. A coiled Pt-wire inserted in a glass tube with a porous glass frit at the bottom acted as the counter electrode and Ag/AgCl as a reference electrode. At elevated pressure, a 316L stainless steel cell was used. Inside the cell, a three-electrode setup consisting of a Cu-foil working electrode, an AgBF4-coated silver wire as quasi-reference, and a platinum gauze counter-electrode was employed. Before the experiment, the cell was filled with the electrolyte (0.1 M TBABF4 in acetonitrile) and purged five times with CO2 (until 6 atm) under constant stirring with a magnet-operated stirrer. Afterward, the cell was filled with CO2 until the desired absolute pressure. The reference potential was adjusted to account for the different Ag/Ag+ reference systems employed in the ambient and high-pressure setups. Cyclic voltammograms were collected for five consecutive cycles for each scan rate between –0.8 V and –2.4 V. Data of the third cycle is provided. Post-iR correction was applied to all CV data to eliminate solution resistance effects. |
Art der Forschungsdaten | Dataset |
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