Exploring the Role of Defects on the Active Site Evolution in Co-Based Spinels and Hydrous Oxides under OER Conditions by Correlative Microscopy (B09*)

• Subject Area: Physical Chemistry of Solids and Surfaces, Material Characterisation ; Synthesis and Properties of Functional Materials
• Term: since 2022
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 388390466

Project B09 aims to improve the understanding of the role of real structure features of Co-based spinels and operando-formed hydrous oxides and oxyhydroxides on the OER activity and to unravel the activation or deactivation processes of the active features. This will be done by correlating local electrochemical experiments (SECCM, EC-AFM) with localized compositional and structural investigations (APT, EBSD, SEM) before and after OER measurements to identify active sites and gain improved mechanistic understanding.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 247: Heterogeneous Oxidation Catalysis in the Liquid Phase – Mechanisms and Materials in Thermal, Electro-, and Photocatalysis
• Applicant Institution: Ruhr-Universität Bochum
• Project Heads: Professorin Tong Li, Ph.D.; Professorin Dr. Kristina Tschulik