Sergey Koroidov

About me

After earning my PhD in Physical Chemistry at Umeå University and completing a postdoctoral stint at Stanford, I have been leading a research group at Stockholm University since 2020. Our research centers on electrochemical and photochemical processes within heterogeneous catalysis. We aim to elucidate catalytic mechanisms at solid-liquid and solid-gas interfaces, focusing on chemical reactions that generate energy resources and industrial chemicals. To support this, we establish experimental protocols, design sample environment cells, and employ various spectroscopic techniques, including steady-state, operando, and time-resolved optical and X-ray spectroscopy.

Current group members:

Since 2024/ Hirad Salari (PhD student)
Since 2023- David Degerman (Postdoc) 
Since 2021- Bernadette Davis received her PhD in August 2025; in the group until December 2025. 

Recent publications:

Operando Characterization of Fe in Doped Nix(Fe1–x)OyHz Catalysts for Electrochemical Oxygen Evolution. JACS (2025). https://doi.org/10.1021/jacs.4c13417

X-Ray Absorption Spectroscopy Probing of Gold Electro-Oxidation Reveals Intermediate Surficial Au(I). ChemElectroChem (2025). https://doi.org/10.1002/celc.202500127

Insight into the Carbon Monoxide Reduction Reaction on Cu(111) from Operando Electrochemical X-ray Photoelectron Spectroscopy. Angew. Chem. (2025). https://doi.org/10.1002/anie.202506402

A Water-Promoted Mars−van Krevelen Reaction Dominates Low-Temperature CO Oxidation over Au-Fe2O3 but Not over Au-TiO2. ACS Catal. (2024). https://doi.org/10.1021/acscatal.3c05978

Operando probing of the surface chemistry during the Haber–Bosch process. Nature (2024). https://doi.org/10.1038/s41586-023-06844-5

Multi-spectroscopic study of electrochemically-formed oxide-derived gold electrodes. PCCP (2024). https://doi.org/10.1039/D3CP04009G