Proefschrift
Influence of the electrode-electrolyte interface on electrochemical CO2 reduction reaction and hydrogen evolution reaction
The goal of this thesis is to understand how interfacial parameters, such as the addition of organic additives, bulk pH or metal cations of the electrolyte, affect the relevant electrocatalytic reactions, i.e. electrochemical CO2 reduction reaction or hydrogen evolution reaction.
- Auteur
- C. Ye
- Datum
- 05 december 2024
- Links
- Thesis in Leiden Repository
We firstly investigate the influence of organic additives on CO2RR activity and selectivity, as well as their effects on the interfacial environment during CO2RR. The focus then shifts to a well-defined surface, where we closely examine the role of metal cations on CO2RR using a palladium monolayer modified Pt(111) surface (PdMLPt(111)) in a pH 3 electrolyte. Further, we investigate the influence of metal cations on the competing hydrogen evolution reaction (HER) in mildly acidic media, which is relevant for optimizing CO2RR performance. Finally, we expand the scope to industrially relevant conditions by studying the influence of bulk electrolyte pH on CO2RR product distribution using a copper gas diffusion electrode (Cu GDE).