Structure of the (Bi)carbonate Adlayer on Cu(100) Electrodes
| Autor: | Reihaneh Amirbeigiarab, Alexander Bagger, Jing Tian, Jan Rossmeisl, Olaf M. Magnussen |
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| Rok vydání: | 2022 |
| Předmět: |
Electrochemical Interfaces
ADSORPTION Scanning Tunnelling Microscopy SCANNING-TUNNELING-MICROSCOPY General Chemistry General Medicine Catalysis Carbon Dioxide Reduction CU(111) IN-SITU STM Carbonate Adsorption INITIAL-STAGES PHOSPHATE RECONSTRUCTION Density Functional Theory CU SULFATE ELECTROCHEMICAL CO2 REDUCTION |
| Zdroj: | Amirbeigiarab, R, Bagger, A, Tian, J, Rossmeisl, J & Magnussen, O M 2022, ' Structure of the (Bi)carbonate Adlayer on Cu(100) Electrodes ', Angewandte Chemie International Edition, vol. 61, no. 46, e202211360 . https://doi.org/10.1002/anie.202211360 |
| ISSN: | 1521-3757 0044-8249 |
| DOI: | 10.1002/ange.202211360 |
| Popis: | (Bi)carbonate adsorption on Cu(100) in 0.1 M KHCO3 has been studied by in situ scanning tunneling microscopy. Coexistence of different ordered adlayer phases with ( 2 ${\sqrt{2}}$ x6 2 ${\sqrt{2}}$ )R45 degrees and (4x4) unit cells was observed in the double layer potential regime. The adlayer is rather dynamic and undergoes a reversible order-disorder phase transition at 0 V vs. the reversible hydrogen electrode. Density functional calculations indicate that the adlayer consists of coadsorbed carbonate and water molecules and is strongly stabilized by liquid water in the adjacent electrolyte. |
| Databáze: | OpenAIRE |
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