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The Department of Radiation Science and Technology (RST) and the Storage of Electrochemical Energy (SEE) group at TU Delft offer access to a broad range of advanced characterization techniques, including solid-state NMR, in situ XRD, electrochemical characterization, and neutron-based techniques.
Within our research group, we operate several specialized in situ and operando characterization techniques, including electrochemical quartz crystal microbalance (EQCM), UV-Vis spectroscopy, neutron depth profiling (NDP), and Fourier-transform infrared spectroscopy (FTIR). These techniques provide complementary insights into electrochemical processes, enabling the investigation of charge-storage mechanisms, ion transport, and electrode-electrolyte interactions.
We actively welcome academic and industrial collaborations involving these characterization techniques. If you are interested in exploring potential collaborations or discussing their applications to your research, please feel free to contact me by email.
Picture from T. van Eupen's master thesis
In Situ Electrochemical Quartz Crystal Microbalance (EQCM)
In situ EQCM enables real-time monitoring of electrode mass changes during electrochemical cycling with nanogram-level sensitivity. By correlating mass changes with electrochemical responses, EQCM provides valuable insights into ion insertion/extraction, solvent co-intercalation, and charge-storage mechanisms.
For an example of our application of EQCM to investigate ion-solvent co-intercalation in MXene electrodes, see C. Chen et al., Energy Storage Materials (2026).
In Situ UV–Vis Spectroscopy
In Situ UV–Vis Spectroscopy
In situ UV–Vis spectroscopy enables real-time monitoring of changes in the optical absorption of electrode materials during electrochemical cycling. By correlating spectral evolution with electrochemical responses, this technique provides valuable insights into redox reactions, electronic structure changes, and charge-storage mechanisms. Our method has been successfully applied to a range of electrode materials, including titanates, vanadium oxides, MXenes, and redox-active polymers.
For more information on our application of operando UV–Vis spectroscopy to investigate electrochemical charge-storage mechanisms, see D. Zhang et al., Nature Energy (2023).
Picture from D. Zhang Nature energy 2023
Fourier-Transform Infrared Spectroscopy (FTIR)
Fourier-Transform Infrared Spectroscopy (FTIR)
Our group operates a Thermo Scientific Nicolet iS50 FTIR spectrometer equipped with attenuated total reflectance (ATR) capabilities. In situ FTIR measurements are also available, enabling the investigation of chemical and molecular changes during electrochemical processes.
Picture from network
In Situ Neutron Depth Profiling (NDP)
In Situ Neutron Depth Profiling (NDP)
In situ NDP enables real-time monitoring of lithium distribution and dendrite formation within batteries, providing insights into lithium transport and deposition in both liquid- and solid-state battery systems.
Picture from Zhang, Xiaoyu, et al. Advanced Energy Materials 5.15 (2015): 1500498.
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