20 Publications
2025 | Journal Article | LibreCat-ID: 61982
Operando Analysis of the Pre-OER Activation of Metal-Doped Co3O4 Nanoparticle Catalysts
L. Kampermann, J. Klein, T. Wagner, A. Kotova, C. Placke-Yan, A. Yasar, L. Jacobse, S. Lasagna, C. Leppin, S. Schulz, J. Linnemann, A. Bergmann, B. Roldan Cuenya, G. Bacher, ACS Catalysis 15 (2025) 18391–18403.
LibreCat
| DOI
L. Kampermann, J. Klein, T. Wagner, A. Kotova, C. Placke-Yan, A. Yasar, L. Jacobse, S. Lasagna, C. Leppin, S. Schulz, J. Linnemann, A. Bergmann, B. Roldan Cuenya, G. Bacher, ACS Catalysis 15 (2025) 18391–18403.
2025 | Preprint | LibreCat-ID: 62815 | 
Role of defects in reversible surface restructuring and activity of Co3O4 oxygen evolution electrocatalysts
C.H. Scharf, A. Chandraraj, K. Dyk, F. Stebner, S. Lepin, J. Tian, L. El Bergmi Byaz, J. Stettner, C. Leppin, A. Kotova, S. Reinke, J. Linnemann, F. Maroun, O.M. Magnussen, (2025).
LibreCat
| Download (ext.)
C.H. Scharf, A. Chandraraj, K. Dyk, F. Stebner, S. Lepin, J. Tian, L. El Bergmi Byaz, J. Stettner, C. Leppin, A. Kotova, S. Reinke, J. Linnemann, F. Maroun, O.M. Magnussen, (2025).
2025 | Journal Article | LibreCat-ID: 63223
The Frequency‐Domain Lattice Boltzmann Method (FreqD‐LBM): A Versatile Tool to Predict the QCM Response Induced by Structured Samples
D. Johannsmann, P. Häusner, A. Langhoff, C. Leppin, I. Reviakine, V. Vanoppen, Advanced Theory and Simulations 8 (2025).
LibreCat
| DOI
D. Johannsmann, P. Häusner, A. Langhoff, C. Leppin, I. Reviakine, V. Vanoppen, Advanced Theory and Simulations 8 (2025).
2025 | Journal Article | LibreCat-ID: 63222
Comparing the SEI Formation on Copper and Amorphous Carbon: A Study with Combined Operando Methods
M. Stich, C. Leppin, F.T. Krauss, J.E. Valdes Landa, I. Pantenburg, B. Roling, A. Bund, Batteries 11 (2025).
LibreCat
| DOI
M. Stich, C. Leppin, F.T. Krauss, J.E. Valdes Landa, I. Pantenburg, B. Roling, A. Bund, Batteries 11 (2025).
2025 | Journal Article | LibreCat-ID: 63224
Rapid Solidification of Plant Latices from Campanula glomerata Driven by a Sudden Decrease in Hydrostatic Pressure
A. Langhoff, A. Peschel, C. Leppin, S. Kruppert, T. Speck, D. Johannsmann, Plants 14 (2025).
LibreCat
| DOI
A. Langhoff, A. Peschel, C. Leppin, S. Kruppert, T. Speck, D. Johannsmann, Plants 14 (2025).
2025 | Journal Article | LibreCat-ID: 63225
Swelling Degree of Polyelectrolyte Layers Determined by an Electrochemical Quartz Crystal Microbalance
C. Leppin, A. Pomorska, M. Morga, P. Pomastowski, P. Fijałkowski, A. Michna, D. Johannsmann, Biomacromolecules 26 (2025) 914–928.
LibreCat
| DOI
C. Leppin, A. Pomorska, M. Morga, P. Pomastowski, P. Fijałkowski, A. Michna, D. Johannsmann, Biomacromolecules 26 (2025) 914–928.
2025 | Journal Article | LibreCat-ID: 63226
A fast electrochemical quartz crystal microbalance (EQCM) evidences the presence of nanobubbles in alkaline water splitting
C. Leppin, A. Langhoff, D. Johannsmann, Physical Chemistry Chemical Physics 27 (2025) 19733–19747.
LibreCat
| DOI
C. Leppin, A. Langhoff, D. Johannsmann, Physical Chemistry Chemical Physics 27 (2025) 19733–19747.
2024 | Journal Article | LibreCat-ID: 63227
An electrochemical quartz crystal microbalance (EQCM) based on microelectrode arrays allows to distinguish between adsorption and electrodeposition
M. Biermann, C. Leppin, A. Langhoff, T. Ziemer, C. Rembe, D. Johannsmann, The Analyst 149 (2024) 2138–2146.
LibreCat
| DOI
M. Biermann, C. Leppin, A. Langhoff, T. Ziemer, C. Rembe, D. Johannsmann, The Analyst 149 (2024) 2138–2146.
2023 | Journal Article | LibreCat-ID: 63231
Protein–protein interactions in solutions of monoclonal antibodies probed by the dependence of the high-frequency viscosity on temperature and concentration
E. Rott, C. Leppin, T. Diederichs, P. Garidel, D. Johannsmann, The Analyst 148 (2023) 1887–1897.
LibreCat
| DOI
E. Rott, C. Leppin, T. Diederichs, P. Garidel, D. Johannsmann, The Analyst 148 (2023) 1887–1897.
2023 | Journal Article | LibreCat-ID: 63228
Stiffness of Contacts between Adsorbed Particles and the Surface of a QCM‐D Inferred from the Adsorption Kinetics and a Frequency‐Domain Lattice Boltzmann Simulation
D. Johannsmann, C. Leppin, A. Langhoff, Advanced Theory and Simulations 6 (2023).
LibreCat
| DOI
D. Johannsmann, C. Leppin, A. Langhoff, Advanced Theory and Simulations 6 (2023).
2023 | Journal Article | LibreCat-ID: 63230
Effect of Noise on Determining Ultrathin-Film Parameters from QCM-D Data with the Viscoelastic Model
D. Johannsmann, A. Langhoff, C. Leppin, I. Reviakine, A.M.C. Maan, Sensors 23 (2023).
LibreCat
| DOI
D. Johannsmann, A. Langhoff, C. Leppin, I. Reviakine, A.M.C. Maan, Sensors 23 (2023).
2023 | Journal Article | LibreCat-ID: 63229
Particle fouling at hot reactor walls monitored In situ with a QCM-D and modeled with the frequency-domain lattice Boltzmann method
D. Johannsmann, J. Petri, C. Leppin, A. Langhoff, H. Ibrahim, Results in Physics 45 (2023).
LibreCat
| DOI
D. Johannsmann, J. Petri, C. Leppin, A. Langhoff, H. Ibrahim, Results in Physics 45 (2023).
2022 | Journal Article | LibreCat-ID: 63234
Influence of the solvent evaporation rate on the β-Phase content of electrosprayed PVDF particles and films studied by a fast Multi-Overtone QCM
J. Wiegmann, C. Leppin, A. Langhoff, J. Schwaderer, S. Beuermann, D. Johannsmann, A.P. Weber, Advanced Powder Technology 33 (2022).
LibreCat
| DOI
J. Wiegmann, C. Leppin, A. Langhoff, J. Schwaderer, S. Beuermann, D. Johannsmann, A.P. Weber, Advanced Powder Technology 33 (2022).
2022 | Journal Article | LibreCat-ID: 63233
Square-Wave Electrogravimetry Combined with Voltammetry Reveals Reversible Submonolayer Adsorption of Redox-Active Ions
C. Leppin, A. Langhoff, D. Johannsmann, Analytical Chemistry 94 (2022) 10227–10233.
LibreCat
| DOI
C. Leppin, A. Langhoff, D. Johannsmann, Analytical Chemistry 94 (2022) 10227–10233.
2021 | Journal Article | LibreCat-ID: 63236
Studying Soft Interfaces with Shear Waves: Principles and Applications of the Quartz Crystal Microbalance (QCM)
D. Johannsmann, A. Langhoff, C. Leppin, Sensors 21 (2021).
LibreCat
| DOI
D. Johannsmann, A. Langhoff, C. Leppin, Sensors 21 (2021).
2021 | Journal Article | LibreCat-ID: 63235
A Modulation QCM Applied to Copper Electrodeposition and Stripping
C. Leppin, A. Langhoff, O. Höfft, D. Johannsmann, Electroanalysis 33 (2021) 2529–2538.
LibreCat
| DOI
C. Leppin, A. Langhoff, O. Höfft, D. Johannsmann, Electroanalysis 33 (2021) 2529–2538.
2021 | Journal Article | LibreCat-ID: 63237
Fast and slow EQCM response of zwitterionic weak electrolytes to changes in the electrode potential: a pH-mediated mechanism
C. Leppin, A. Langhoff, H.-F. Poggemann, A.S. Gödde, D. Johannsmann, The Analyst 146 (2021) 6005–6013.
LibreCat
| DOI
C. Leppin, A. Langhoff, H.-F. Poggemann, A.S. Gödde, D. Johannsmann, The Analyst 146 (2021) 6005–6013.
2021 | Journal Article | LibreCat-ID: 63238
Kinetics of viscoelasticity in the electric double layer following steps in the electrode potential studied by a fast electrochemical quartz crystal microbalance (EQCM)
C. Leppin, A. Peschel, F.S. Meyer, A. Langhoff, D. Johannsmann, The Analyst 146 (2021) 2160–2171.
LibreCat
| DOI
C. Leppin, A. Peschel, F.S. Meyer, A. Langhoff, D. Johannsmann, The Analyst 146 (2021) 2160–2171.
2020 | Journal Article | LibreCat-ID: 63239
A Quartz Crystal Microbalance, Which Tracks Four Overtones in Parallel with a Time Resolution of 10 Milliseconds: Application to Inkjet Printing
C. Leppin, S. Hampel, F.S. Meyer, A. Langhoff, U.E.A. Fittschen, D. Johannsmann, Sensors 20 (2020).
LibreCat
| DOI
C. Leppin, S. Hampel, F.S. Meyer, A. Langhoff, U.E.A. Fittschen, D. Johannsmann, Sensors 20 (2020).
2020 | Journal Article | LibreCat-ID: 63240
Fast pH-mediated changes of the viscosity of protein solutions studied with a voltage-modulated quartz crystal microbalance
A. Gödde, C. Leppin, F.S. Meyer, A. Langhoff, J. Hartl, P. Garidel, D. Johannsmann, Biointerphases 15 (2020).
LibreCat
| DOI
A. Gödde, C. Leppin, F.S. Meyer, A. Langhoff, J. Hartl, P. Garidel, D. Johannsmann, Biointerphases 15 (2020).
20 Publications
2025 | Journal Article | LibreCat-ID: 61982
Operando Analysis of the Pre-OER Activation of Metal-Doped Co3O4 Nanoparticle Catalysts
L. Kampermann, J. Klein, T. Wagner, A. Kotova, C. Placke-Yan, A. Yasar, L. Jacobse, S. Lasagna, C. Leppin, S. Schulz, J. Linnemann, A. Bergmann, B. Roldan Cuenya, G. Bacher, ACS Catalysis 15 (2025) 18391–18403.
LibreCat
| DOI
L. Kampermann, J. Klein, T. Wagner, A. Kotova, C. Placke-Yan, A. Yasar, L. Jacobse, S. Lasagna, C. Leppin, S. Schulz, J. Linnemann, A. Bergmann, B. Roldan Cuenya, G. Bacher, ACS Catalysis 15 (2025) 18391–18403.
2025 | Preprint | LibreCat-ID: 62815 |
Role of defects in reversible surface restructuring and activity of Co3O4 oxygen evolution electrocatalysts
C.H. Scharf, A. Chandraraj, K. Dyk, F. Stebner, S. Lepin, J. Tian, L. El Bergmi Byaz, J. Stettner, C. Leppin, A. Kotova, S. Reinke, J. Linnemann, F. Maroun, O.M. Magnussen, (2025).
LibreCat
| Download (ext.)
C.H. Scharf, A. Chandraraj, K. Dyk, F. Stebner, S. Lepin, J. Tian, L. El Bergmi Byaz, J. Stettner, C. Leppin, A. Kotova, S. Reinke, J. Linnemann, F. Maroun, O.M. Magnussen, (2025).
2025 | Journal Article | LibreCat-ID: 63223
The Frequency‐Domain Lattice Boltzmann Method (FreqD‐LBM): A Versatile Tool to Predict the QCM Response Induced by Structured Samples
D. Johannsmann, P. Häusner, A. Langhoff, C. Leppin, I. Reviakine, V. Vanoppen, Advanced Theory and Simulations 8 (2025).
LibreCat
| DOI
D. Johannsmann, P. Häusner, A. Langhoff, C. Leppin, I. Reviakine, V. Vanoppen, Advanced Theory and Simulations 8 (2025).
2025 | Journal Article | LibreCat-ID: 63222
Comparing the SEI Formation on Copper and Amorphous Carbon: A Study with Combined Operando Methods
M. Stich, C. Leppin, F.T. Krauss, J.E. Valdes Landa, I. Pantenburg, B. Roling, A. Bund, Batteries 11 (2025).
LibreCat
| DOI
M. Stich, C. Leppin, F.T. Krauss, J.E. Valdes Landa, I. Pantenburg, B. Roling, A. Bund, Batteries 11 (2025).
2025 | Journal Article | LibreCat-ID: 63224
Rapid Solidification of Plant Latices from Campanula glomerata Driven by a Sudden Decrease in Hydrostatic Pressure
A. Langhoff, A. Peschel, C. Leppin, S. Kruppert, T. Speck, D. Johannsmann, Plants 14 (2025).
LibreCat
| DOI
A. Langhoff, A. Peschel, C. Leppin, S. Kruppert, T. Speck, D. Johannsmann, Plants 14 (2025).
2025 | Journal Article | LibreCat-ID: 63225
Swelling Degree of Polyelectrolyte Layers Determined by an Electrochemical Quartz Crystal Microbalance
C. Leppin, A. Pomorska, M. Morga, P. Pomastowski, P. Fijałkowski, A. Michna, D. Johannsmann, Biomacromolecules 26 (2025) 914–928.
LibreCat
| DOI
C. Leppin, A. Pomorska, M. Morga, P. Pomastowski, P. Fijałkowski, A. Michna, D. Johannsmann, Biomacromolecules 26 (2025) 914–928.
2025 | Journal Article | LibreCat-ID: 63226
A fast electrochemical quartz crystal microbalance (EQCM) evidences the presence of nanobubbles in alkaline water splitting
C. Leppin, A. Langhoff, D. Johannsmann, Physical Chemistry Chemical Physics 27 (2025) 19733–19747.
LibreCat
| DOI
C. Leppin, A. Langhoff, D. Johannsmann, Physical Chemistry Chemical Physics 27 (2025) 19733–19747.
2024 | Journal Article | LibreCat-ID: 63227
An electrochemical quartz crystal microbalance (EQCM) based on microelectrode arrays allows to distinguish between adsorption and electrodeposition
M. Biermann, C. Leppin, A. Langhoff, T. Ziemer, C. Rembe, D. Johannsmann, The Analyst 149 (2024) 2138–2146.
LibreCat
| DOI
M. Biermann, C. Leppin, A. Langhoff, T. Ziemer, C. Rembe, D. Johannsmann, The Analyst 149 (2024) 2138–2146.
2023 | Journal Article | LibreCat-ID: 63231
Protein–protein interactions in solutions of monoclonal antibodies probed by the dependence of the high-frequency viscosity on temperature and concentration
E. Rott, C. Leppin, T. Diederichs, P. Garidel, D. Johannsmann, The Analyst 148 (2023) 1887–1897.
LibreCat
| DOI
E. Rott, C. Leppin, T. Diederichs, P. Garidel, D. Johannsmann, The Analyst 148 (2023) 1887–1897.
2023 | Journal Article | LibreCat-ID: 63228
Stiffness of Contacts between Adsorbed Particles and the Surface of a QCM‐D Inferred from the Adsorption Kinetics and a Frequency‐Domain Lattice Boltzmann Simulation
D. Johannsmann, C. Leppin, A. Langhoff, Advanced Theory and Simulations 6 (2023).
LibreCat
| DOI
D. Johannsmann, C. Leppin, A. Langhoff, Advanced Theory and Simulations 6 (2023).
2023 | Journal Article | LibreCat-ID: 63230
Effect of Noise on Determining Ultrathin-Film Parameters from QCM-D Data with the Viscoelastic Model
D. Johannsmann, A. Langhoff, C. Leppin, I. Reviakine, A.M.C. Maan, Sensors 23 (2023).
LibreCat
| DOI
D. Johannsmann, A. Langhoff, C. Leppin, I. Reviakine, A.M.C. Maan, Sensors 23 (2023).
2023 | Journal Article | LibreCat-ID: 63229
Particle fouling at hot reactor walls monitored In situ with a QCM-D and modeled with the frequency-domain lattice Boltzmann method
D. Johannsmann, J. Petri, C. Leppin, A. Langhoff, H. Ibrahim, Results in Physics 45 (2023).
LibreCat
| DOI
D. Johannsmann, J. Petri, C. Leppin, A. Langhoff, H. Ibrahim, Results in Physics 45 (2023).
2022 | Journal Article | LibreCat-ID: 63234
Influence of the solvent evaporation rate on the β-Phase content of electrosprayed PVDF particles and films studied by a fast Multi-Overtone QCM
J. Wiegmann, C. Leppin, A. Langhoff, J. Schwaderer, S. Beuermann, D. Johannsmann, A.P. Weber, Advanced Powder Technology 33 (2022).
LibreCat
| DOI
J. Wiegmann, C. Leppin, A. Langhoff, J. Schwaderer, S. Beuermann, D. Johannsmann, A.P. Weber, Advanced Powder Technology 33 (2022).
2022 | Journal Article | LibreCat-ID: 63233
Square-Wave Electrogravimetry Combined with Voltammetry Reveals Reversible Submonolayer Adsorption of Redox-Active Ions
C. Leppin, A. Langhoff, D. Johannsmann, Analytical Chemistry 94 (2022) 10227–10233.
LibreCat
| DOI
C. Leppin, A. Langhoff, D. Johannsmann, Analytical Chemistry 94 (2022) 10227–10233.
2021 | Journal Article | LibreCat-ID: 63236
Studying Soft Interfaces with Shear Waves: Principles and Applications of the Quartz Crystal Microbalance (QCM)
D. Johannsmann, A. Langhoff, C. Leppin, Sensors 21 (2021).
LibreCat
| DOI
D. Johannsmann, A. Langhoff, C. Leppin, Sensors 21 (2021).
2021 | Journal Article | LibreCat-ID: 63235
A Modulation QCM Applied to Copper Electrodeposition and Stripping
C. Leppin, A. Langhoff, O. Höfft, D. Johannsmann, Electroanalysis 33 (2021) 2529–2538.
LibreCat
| DOI
C. Leppin, A. Langhoff, O. Höfft, D. Johannsmann, Electroanalysis 33 (2021) 2529–2538.
2021 | Journal Article | LibreCat-ID: 63237
Fast and slow EQCM response of zwitterionic weak electrolytes to changes in the electrode potential: a pH-mediated mechanism
C. Leppin, A. Langhoff, H.-F. Poggemann, A.S. Gödde, D. Johannsmann, The Analyst 146 (2021) 6005–6013.
LibreCat
| DOI
C. Leppin, A. Langhoff, H.-F. Poggemann, A.S. Gödde, D. Johannsmann, The Analyst 146 (2021) 6005–6013.
2021 | Journal Article | LibreCat-ID: 63238
Kinetics of viscoelasticity in the electric double layer following steps in the electrode potential studied by a fast electrochemical quartz crystal microbalance (EQCM)
C. Leppin, A. Peschel, F.S. Meyer, A. Langhoff, D. Johannsmann, The Analyst 146 (2021) 2160–2171.
LibreCat
| DOI
C. Leppin, A. Peschel, F.S. Meyer, A. Langhoff, D. Johannsmann, The Analyst 146 (2021) 2160–2171.
2020 | Journal Article | LibreCat-ID: 63239
A Quartz Crystal Microbalance, Which Tracks Four Overtones in Parallel with a Time Resolution of 10 Milliseconds: Application to Inkjet Printing
C. Leppin, S. Hampel, F.S. Meyer, A. Langhoff, U.E.A. Fittschen, D. Johannsmann, Sensors 20 (2020).
LibreCat
| DOI
C. Leppin, S. Hampel, F.S. Meyer, A. Langhoff, U.E.A. Fittschen, D. Johannsmann, Sensors 20 (2020).
2020 | Journal Article | LibreCat-ID: 63240
Fast pH-mediated changes of the viscosity of protein solutions studied with a voltage-modulated quartz crystal microbalance
A. Gödde, C. Leppin, F.S. Meyer, A. Langhoff, J. Hartl, P. Garidel, D. Johannsmann, Biointerphases 15 (2020).
LibreCat
| DOI
A. Gödde, C. Leppin, F.S. Meyer, A. Langhoff, J. Hartl, P. Garidel, D. Johannsmann, Biointerphases 15 (2020).