Replication Data for: Electrochemical Performance and Durability of High-Temperature Solid Oxide Electrolysis Cells with SFM and SFM-GDC Fuel Electrodes for Hydrogen and Syngas Production

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Wolf, Stephanie E.; Vibhu, Vaibhav; Chakraborty, Pritam; Coll, Carla L.; Schönert, Sandro; Basak, Shibabrata; Vinke, Izaak C.; de Haart, L.G.J. (Bert); Eichel, Rüdiger-A., 2025, "Replication Data for: Electrochemical Performance and Durability of High-Temperature Solid Oxide Electrolysis Cells with SFM and SFM-GDC Fuel Electrodes for Hydrogen and Syngas Production", https://doi.org/10.26165/JUELICH-DATA/6RNQAR, Jülich DATA, V1

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Description	This data repository contains the data sets associated with the manuscript 'Electrochemical Performance and Durability of High-Temperature Solid Oxide Electrolysis Cells with SFM and SFM-GDC Fuel Electrodes for Hydrogen and Syngas Production'. Published in J. Mater. Chem. A link Motivation: The increasing need to valorize emitted CO2 and close the carbon cycle through the production of synthesis gas, fuel, and hydrogen has driven the development of high-temperature electrolysis technology. SOEC offers a promising solution with its ability to produce pure H2 at elevated temperatures (650°C-900°C) without the use of precious metal catalysts, making it cost-effective and more efficient than low-temperature technologies like alkaline and polymer exchange membrane cells due to advantageous kinetics and thermodynamics. By utilizing pre-existing chemical industry heat, SOEC can achieve high electrical efficiencies of up to 100%. The long-term stability and performance of current Ni-based fuel electrodes is preventing the wide industrial implementation though, prompting the search for alternative Ni-free materials with good electrochemical performance and long-term stability, such as perovskite fuel electrodes like Sr2FeMoO6-δ (SFM). Central Research Question: In this work, solid oxide electrolysis cells with SFM and the composite ceramic-ceramic (cercer) SFM-GDC fuel electrode materials were investigated in steam- and co-electrolysis conditions for the first time, regarding performance and long-term stability of up to 500 h in 50% steam and 50% H2. Description of folder contents (switch to tree view): 01_In Situ Transmission Electron Microscopy: Contains the taken TEM Images taken and the experimental procedure. 02_X-Ray Diffraction_Temperature_Atmosphere Variation: Contains raw data files of the XRD measurements, the TOPAS6 fit criteria, the Rietveld Report as well as the data over the whole in operando Experiment. 03_X-Ray Photoelectron Spectroscopy: Contains the raw data and the data evalution for the measurements in air and after reduction in H2. 04_Powder_Scanning Electron Microscopy: Contains the SEM Image of the unreduced and reduced sample. 05_Conductivity Measurement: Contains the raw data for SFM and SFM-GDC conductivty measurements in air and in H2. 06_Transmission Electron Microscopy: Contains the Image of one exsoluted nanoparticle observed for SFM. 07_Electrochemistry_Initial Performance Characterization: Contains the raw data of the initial AC and DC characterization of the cells with an SFM and an SFM-GDC fuel electrode. The data are seperated by the operating gas atmospheres for steam electrolysis (50%H2O + 50%H2) and co-electrolysis (40%H2O + 40% CO2 + 20%H2) and then subdivided regarding the varied Parameter (Temperature, Polarization, Partial Pressure Variations). 08_Electrochemistry_ResistancePlots: Contains the evaluation data of the electrochemical impedance measurements for SFM and SFM-GDC. 09_Electrochemistry_Degradation_Testing: Contains the raw data of the electrochemical Degradation testing for SFM and SFM-GDC. 10_Posttest Scanning Electron Microscopy: Contains the SEM-EDS Images of the post-test characterized single cells regarding oxygen and fuel electrodes in comparison to pristine cell microstructure. 11_Dilatometry: Contains raw data of dilatometry measurements to analyse the thermal Expansion coefficient of SFM and SFM-GDC in air. List of abbreviations : AC - Alternating Current DC - Direct Current FE - Fuel Electrode OE - Oxygen Electrode SEM - Scanning Electron Microscopy EDS - Energy-Dispersive X-ray Spectroscopy OCV - Open Circuit Voltage
Subject	Chemistry; Engineering; Physics
Institute	IET-1

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	DRT_SFM-GDC_50percH2O+50percH2.csv Data Publication SFM_25_09_2025/07_Electrochemistry_InitialPerformanceCharacterization/SFM-GDC/50percH2O.50percH2/TemperatureVariation/ Comma Separated Values - 295.5 KB - Oct 10, 2025 - 0 Downloads SHA-256: 739568bc3d6e104315b00f9411ee7e883cc4dfee355daaf7a9b6cf81eb73a35f	Download
	DRT_SFM_40percH2O+40percCO2+20percH2.csv Data Publication SFM_25_09_2025/07_Electrochemistry_InitialPerformanceCharacterization/SFM/40percH2O.40percCO2.20percH2/TemperaturVariation/ Comma Separated Values - 296.0 KB - Oct 10, 2025 - 0 Downloads SHA-256: 26a5b3f7c2b442025eed121ce67387164a95d6e69d105c425fa3eed34ce7a9ce	Download
	DRT_SFM_50percH2O+50percH2.csv Data Publication SFM_25_09_2025/07_Electrochemistry_InitialPerformanceCharacterization/SFM/50percH2O.50percH2/TemperatureVariation/ Comma Separated Values - 304.3 KB - Oct 10, 2025 - 0 Downloads SHA-256: 29550a3ed1b4164999a97c3218301d7c24d1918a483117b429c50be596ff270e	Download
	DRT_SFM_750C_50percH2O+50percH2.csv Data Publication SFM_25_09_2025/08_Electrochemistry_ResistancePlots/FitValidation/ Comma Separated Values - 72.0 KB - Oct 10, 2025 - 0 Downloads SHA-256: d0382778a5245786fa0fcbdd4ae994b4cdc64b1ad1de16103702fb85f29d8380	Download
	EIS_OCV_SFM_750C_50percH2O+50percH2.csv Data Publication SFM_25_09_2025/08_Electrochemistry_ResistancePlots/FitValidation/ Comma Separated Values - 5.9 KB - Oct 10, 2025 - 0 Downloads SHA-256: 7fc6ba11f87e8aacd8a6e9a002e0ae09f88d324f1758c07787a8146549dd1220	Download
	Fe2p.csv Data Publication SFM_25_09_2025/03_X-RayPhotoelectronSpectroscopy/FittedData/ReducedSample/ Comma Separated Values - 29.3 KB - Oct 10, 2025 - 0 Downloads SHA-256: 250ab1c33523926a888dfb610ff4c3cc3847450cdd2ff70d7e5b88598c8b2fa6	Download
	Fe2p3.csv Data Publication SFM_25_09_2025/03_X-RayPhotoelectronSpectroscopy/FittedData/OxidizedSample/ Comma Separated Values - 22.2 KB - Oct 10, 2025 - 0 Downloads SHA-256: dc1d17d8260b5889cd94c1d46168412ebbe03c1dbf7fa083728d6f112936249f	Download
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	Mo3d.csv Data Publication SFM_25_09_2025/03_X-RayPhotoelectronSpectroscopy/FittedData/OxidizedSample/ Comma Separated Values - 13.8 KB - Oct 10, 2025 - 0 Downloads SHA-256: 8ce6ffbc030d3237716b0911a0591a4be31f11852f9e8598461ca567d7364e71	Download
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Citation Metadata

Dataset Persistent ID	doi:10.26165/JUELICH-DATA/6RNQAR
Publication Date	2025-10-10
Title	Replication Data for: Electrochemical Performance and Durability of High-Temperature Solid Oxide Electrolysis Cells with SFM and SFM-GDC Fuel Electrodes for Hydrogen and Syngas Production
Author	Wolf, Stephanie E. (IET-1 Forschungszentrum Jülich, IPC RWTH Aachen) - ORCID: 0000-0002-9627-7121 Vibhu, Vaibhav (IET-1 Forschungszentrum Jülich) - ORCID: 0000-0001-9157-2722 Chakraborty, Pritam (IET-1 Forschungszentrum Jülich, IPC RWTH Aachen) - ORCID: 0000-0001-8237-3828 Coll, Carla L. (IET-1 Forschungszentrum Jülich) Schönert, Sandro (IET-1 Forschungszentrum Jülich, IPC RWTH Aachen) - ORCID: 0000-0001-6591-9462 Basak, Shibabrata (IET-1 Forschungszentrum Jülich) - ORCID: 0000-0002-4331-4742 Vinke, Izaak C. (IET-1 Forschungszentrum Jülich) - ORCID: 0000-0002-1361-9983 de Haart, L.G.J. (Bert) (IET-1 Forschungszentrum Jülich) - ORCID: 0000-0001-6908-1214 Eichel, Rüdiger-A. (IET-1 Forschungszentrum Jülich, IPC RWTH Aachen) - ORCID: 0000-0002-0013-6325
Contact	Use email button above to contact. Vibhu, Vaibhav (IET-1) Eichel, Rüdiger-A. (IET-1)
Description	This data repository contains the data sets associated with the manuscript 'Electrochemical Performance and Durability of High-Temperature Solid Oxide Electrolysis Cells with SFM and SFM-GDC Fuel Electrodes for Hydrogen and Syngas Production'. Published in J. Mater. Chem. A link Motivation: The increasing need to valorize emitted CO2 and close the carbon cycle through the production of synthesis gas, fuel, and hydrogen has driven the development of high-temperature electrolysis technology. SOEC offers a promising solution with its ability to produce pure H2 at elevated temperatures (650°C-900°C) without the use of precious metal catalysts, making it cost-effective and more efficient than low-temperature technologies like alkaline and polymer exchange membrane cells due to advantageous kinetics and thermodynamics. By utilizing pre-existing chemical industry heat, SOEC can achieve high electrical efficiencies of up to 100%. The long-term stability and performance of current Ni-based fuel electrodes is preventing the wide industrial implementation though, prompting the search for alternative Ni-free materials with good electrochemical performance and long-term stability, such as perovskite fuel electrodes like Sr2FeMoO6-δ (SFM). Central Research Question: In this work, solid oxide electrolysis cells with SFM and the composite ceramic-ceramic (cercer) SFM-GDC fuel electrode materials were investigated in steam- and co-electrolysis conditions for the first time, regarding performance and long-term stability of up to 500 h in 50% steam and 50% H2. Description of folder contents (switch to tree view): 01_In Situ Transmission Electron Microscopy: Contains the taken TEM Images taken and the experimental procedure. 02_X-Ray Diffraction_Temperature_Atmosphere Variation: Contains raw data files of the XRD measurements, the TOPAS6 fit criteria, the Rietveld Report as well as the data over the whole in operando Experiment. 03_X-Ray Photoelectron Spectroscopy: Contains the raw data and the data evalution for the measurements in air and after reduction in H2. 04_Powder_Scanning Electron Microscopy: Contains the SEM Image of the unreduced and reduced sample. 05_Conductivity Measurement: Contains the raw data for SFM and SFM-GDC conductivty measurements in air and in H2. 06_Transmission Electron Microscopy: Contains the Image of one exsoluted nanoparticle observed for SFM. 07_Electrochemistry_Initial Performance Characterization: Contains the raw data of the initial AC and DC characterization of the cells with an SFM and an SFM-GDC fuel electrode. The data are seperated by the operating gas atmospheres for steam electrolysis (50%H2O + 50%H2) and co-electrolysis (40%H2O + 40% CO2 + 20%H2) and then subdivided regarding the varied Parameter (Temperature, Polarization, Partial Pressure Variations). 08_Electrochemistry_ResistancePlots: Contains the evaluation data of the electrochemical impedance measurements for SFM and SFM-GDC. 09_Electrochemistry_Degradation_Testing: Contains the raw data of the electrochemical Degradation testing for SFM and SFM-GDC. 10_Posttest Scanning Electron Microscopy: Contains the SEM-EDS Images of the post-test characterized single cells regarding oxygen and fuel electrodes in comparison to pristine cell microstructure. 11_Dilatometry: Contains raw data of dilatometry measurements to analyse the thermal Expansion coefficient of SFM and SFM-GDC in air. List of abbreviations : AC - Alternating Current DC - Direct Current FE - Fuel Electrode OE - Oxygen Electrode SEM - Scanning Electron Microscopy EDS - Energy-Dispersive X-ray Spectroscopy OCV - Open Circuit Voltage
Subject	Chemistry; Engineering; Physics
Related Publication	https://doi.org/10.1039/D5TA04819B
Contributor	Data Collector : Wolf, Stephanie E. Supervisor : Vibhu, Vaibhav Data Collector : Chakraborty, Pritam K. Data Collector : Coll, Carla L. Data Collector : Schöner, Sandro Supervisor : Basak, Shibabrata Supervisor : Vinke, Izaak C. Supervisor : de Haart, L. G. J. (Bert) Supervisor : Eichel, Rüdiger-A. Data Curator : Park, Junbeom
Grant Information	German Federal Ministry of Education and Research (BMBF): FKZ 03SF0621A
Depositor	Park, Junbeom
Deposit Date	2025-08-05

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Institute	IET-1
PoF IV topic	Electrochemistry for Hydrogen (POF4-1231)

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