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Journal article
2020

Durability of solid oxide electrolysis stack under dynamic load cycling for syngas production

Rao, M., Sun, X. & Hagen, A., 2020, In : Journal of Power Sources. 451, 7 p., 227781.

Research output: Contribution to journalJournal articleResearchpeer-review

Life cycle assessment of power-to-gas applications via co-electrolysis of CO2 and H2O: Paper

Sadok, R., Benveniste, G., Wang, L., Clavreul, J., Brunot, A., Cren, J., Jegoux, M. & Hagen, A., 2020, In : Journal of Physics: Energy. 2, 2, 13 p., 024006.

Research output: Contribution to journalJournal articleResearchpeer-review

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2019

Developing Accelerated Stress Test Protocols for Solid Oxide Fuel Cells and Electrolysers: The European Project AD ASTRA

McPhail, S. J., Pumiglia, D., Laurencin, J., Hagen, A., Leon, A., Van herle, J., Vladikova, D., Montinaro, D., Piccardo, P., Polverino, P. & Herbrig, K., 2019, In : ECS Transactions. 91, 1, p. 563-570

Research output: Contribution to journalJournal articleResearchpeer-review

Internal reforming on Metal supported SOFCs

Hagen, A., Sun, X., Sudireddy, B. R. & Persson, Å. H., 2019, In : ECS Transactions. 91, 1, p. 867-876 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Operation of solid oxide fuel cells with alternative hydrogen carriers

Hagen, A., Langnickel, H. & Sun, X., 2019, In : International Journal of Hydrogen Energy. 44, 33, p. 18382-18392

Research output: Contribution to journalJournal articleResearchpeer-review

Power-to-methane via co-electrolysis of H2O and CO2: The effects of pressurized operation and internal methanation

Wang, L., Rao, M., Diethelm, S., Lin, T-E., Zhang, H., Hagen, A., Maréchal, F. & Van herle, J., 2019, In : Applied Energy. 250, p. 1432-1445

Research output: Contribution to journalJournal articleResearchpeer-review

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191 Downloads (Pure)

Simulation of a SOFC/Battery powered vehicle

Bessékon, Y., Zielke, P., Wulff, A. C. & Hagen, A., 2019, In : International Journal of Hydrogen Energy. 44, 3, p. 1905-1918

Research output: Contribution to journalJournal articleResearchpeer-review

2018

A Comparative Study of Durability of Solid Oxide Electrolysis Cells Tested for Co-Electrolysis under Galvanostatic and Potentiostatic Conditions

Rao, M., Sun, X. & Hagen, A., 2018, In : Journal of the Electrochemical Society. 165, 10, p. F748-F755

Research output: Contribution to journalJournal articleResearchpeer-review

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317 Downloads (Pure)

Carbon Deposition Diagnostics for Reliability and State-of-Health Assessment of SOFC

Ploner, A., Hagen, A. & Hauch, A., 2018, In : E C S Transactions. 85, 4, p. 25-32

Research output: Contribution to journalJournal articleResearchpeer-review

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32 Downloads (Pure)

Classical statistical methodology for accelerated testing of Solid Oxide Fuel Cells

Ploner, A., Hagen, A. & Hauch, A., 2018, In : Journal of Power Sources. 395, p. 379-385

Research output: Contribution to journalJournal articleResearchpeer-review

Efficient long-term storage of renewable energy as synthetic natural gas

Hagen, A., 2018, In : European Energy Innovation. p. 60

Research output: Contribution to journalJournal articleCommunication

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68 Downloads (Pure)
2017

Investigation of a Spinel-forming Cu-Mn Foam as an Oxygen Electrode Contact Material in a Solid Oxide Cell Single Repeating Unit

Zielke, P., Wulff, A. C., Sun, X., Jensen, S. H., Kiebach, W-R., Frandsen, H. L., Norby, P. & Hagen, A., 2017, In : Fuel Cells. 17, 5, p. 730-734

Research output: Contribution to journalJournal articleResearchpeer-review

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208 Downloads (Pure)

Progress of SOFC/SOEC Development at DTU Energy: From Materials to Systems

Hagen, A. & Hendriksen, P. V., 2017, In : E C S Transactions. 78, 1, p. 145-153 9 p.

Research output: Contribution to journalJournal articleResearchpeer-review

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301 Downloads (Pure)

SOFC Operation with Real Biogas

Hagen, A., Winiwarter, A., Langnickel, H. & Johnson, G., 2017, In : Fuel Cells. 17, 6, p. 854-861

Research output: Contribution to journalJournal articleResearchpeer-review

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229 Downloads (Pure)

Study of Operating Parameters for Accelerated Anode Degradation in SOFCs

Ploner, A., Hagen, A. & Hauch, A., 2017, In : Fuel Cells. 17, 4, p. 498-507

Research output: Contribution to journalJournal articleResearchpeer-review

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188 Downloads (Pure)
2016

Biogas Catalytic Reforming Studies on Nickel-Based Solid Oxide Fuel Cell Anodes

Johnson, G. B., Hjalmarsson, P., Norrman, K., Ozkan, U. S. & Hagen, A., 2016, In : Fuel Cells. 16, 2, p. 219–234

Research output: Contribution to journalJournal articleResearchpeer-review

Performance Factors and Sulfur Tolerance of Metal Supported Solid Oxide Fuel Cells with Nanostructured Ni:GDC Infiltrated Anodes

Nielsen, J., Sudireddy, B. R., Hagen, A. & Persson, Å. H., 2016, In : Journal of the Electrochemical Society. 163, 6, p. F574-F580

Research output: Contribution to journalJournal articleResearchpeer-review

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472 Downloads (Pure)
2015

Accelerated Degradation for Hardware in the Loop Simulation of Fuel Cell-Gas Turbine Hybrid System

Abreu-Sepulveda, M. A., Harun, N. F., Hackett, G., Hagen, A. & Tucker, D., 2015, In : Journal of Fuel Cell Science and Technology. 12, 2, 7 p., 021001.

Research output: Contribution to journalJournal articleResearchpeer-review

Accelerated testing of solid oxide fuel cell stacks for micro combined heat and power application

Hagen, A., Høgh, J. V. T. & Barfod, R., 2015, In : Journal of Power Sources. 300, p. 223-228 6 p.

Research output: Contribution to journalJournal articleResearchpeer-review

2014

Electrochemical evaluation of sulfur poisoning in a methane-fuelled solid oxide fuel cell: Effect of current density and sulfur concentration

Hagen, A., Johnson, G. B. & Hjalmarsson, P., 2014, In : Journal of Power Sources. 272, p. 776-785 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Sulfur Poisoning of SOFC Anodes: Effect of Overpotential on Long-Term Degradation

Hauch, A., Hagen, A., Hjelm, J. & Ramos, T., 2014, In : Journal of The Electrochemical Society. 161, 6, p. F734-F743

Research output: Contribution to journalJournal articleResearchpeer-review

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361 Downloads (Pure)
2013

Defect chemistry, thermomechanical and transport properties of (RE2 - xSrx)0.98(Fe0.8Co0.2)1 - yMgyO4 - δ (RE = La, Pr)

Chatzichristodoulou, C., Schönbeck, C., Hagen, A. & Hendriksen, P. V., 2013, In : Solid State Ionics. 232, p. 68-79

Research output: Contribution to journalJournal articleResearchpeer-review

Sulfur Poisoning of the Water Gas Shift Reaction on Anode Supported Solid Oxide Fuel Cells

Hagen, A., 2013, In : Journal of The Electrochemical Society. 160, 2, p. F111-F118

Research output: Contribution to journalJournal articleResearchpeer-review

2012

Microstructure degradation of LSM-YSZ cathode in SOFCs operated at various conditions

Liu, Y-L., Thydén, K. T. S., Chen, M. & Hagen, A., 2012, In : Solid State Ionics. 206, p. 97-103

Research output: Contribution to journalJournal articleResearchpeer-review

Spectroelectrochemical cell for in situ studies of solid oxide fuel cells

Hagen, A., Traulsen, M. L., Kiebach, W-R. & Johansen, B. S., 2012, In : Journal of Synchrotron Radiation. 19, Pt 3, p. 400-407

Research output: Contribution to journalJournal articleResearchpeer-review

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494 Downloads (Pure)
2011

In situ XANES cell used for the study of lanthanum strontium cuprate deNOx catalysts

Hagen, A., 2011, In : Chemical Physics Letters. 502, 4-6, p. 235-240

Research output: Contribution to journalJournal articleResearchpeer-review

Ni/YSZ electrode degradation studied by impedance spectroscopy — Effect of p(H2O)

Hauch, A., Mogensen, M. B. & Hagen, A., 2011, In : Solid State Ionics. 192, 1, p. 547-551

Research output: Contribution to journalJournal articleResearchpeer-review

2010

Defect Chemistry and Thermomechanical Properties of Ce0.8PrxTb0.2-xO2-delta

Chatzichristodoulou, C., Hendriksen, P. V. & Hagen, A., 2010, In : Journal of The Electrochemical Society. 157, 2, p. B299-B307

Research output: Contribution to journalJournal articleResearchpeer-review

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242 Downloads (Pure)

Effect of cathode gas humidification on performance and durability of Solid Oxide Fuel Cells

Nielsen, J., Hagen, A. & Liu, Y-L., 2010, In : Solid State Ionics. 181, 11-12, p. 517-524

Research output: Contribution to journalJournal articleResearchpeer-review

Effect of Humidity in Air on Performance and Long-Term Durability of SOFCs

Hagen, A., Neufeld, K. & Liu, Y-L., 2010, In : Journal of The Electrochemical Society. 157, 10, p. B1343-B1348

Research output: Contribution to journalJournal articleResearchpeer-review

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The Effect of H2S on the Performance of SOFCs using Methane Containing Fuel

Rasmussen, J. F. B. & Hagen, A., 2010, In : Fuel Cells. 10, 6, p. 1135-1142

Research output: Contribution to journalJournal articleResearchpeer-review

2009

Chromium poisoning of LSM/YSZ and LSCF/CGO composite cathodes

Bentzen, J. J., Høgh, J. V. T., Barfod, R. & Hagen, A., 2009, In : Fuel Cells. 9, 6, p. 823-832

Research output: Contribution to journalJournal articleResearchpeer-review

Durability Study of SOFCs Under Cycling Current Load Conditions

Hagen, A., Hendriksen, P. V., Frandsen, H. L., Thydén, K. T. S. & Barfod, R., 2009, In : Fuel Cells. 9, 6, p. 814-822

Research output: Contribution to journalJournal articleResearchpeer-review

Electrochemical reduction of NO on La2-xSrxNiO4 based electrodes

Simonsen, V. L. E., Nørskov, L., Hagen, A. & Kammer Hansen, K., 2009, In : Journal of Solid State Electrochemistry. 13, 10, p. 1529-1534

Research output: Contribution to journalJournal articleResearchpeer-review

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398 Downloads (Pure)

LSM-YSZ Reactions in Different Atmospheres

Chen, M., Liu, Y-L., Hagen, A., Hendriksen, P. V. & Poulsen, F. W., 2009, In : Fuel Cells. 6, p. 833-840

Research output: Contribution to journalJournal articleResearchpeer-review

Microstructural studies on degradation of interface between LSM–YSZ cathode and YSZ electrolyte in SOFCs

Liu, Y-L., Hagen, A., Barfod, R., Chen, M., Wang, H-J., Poulsen, F. W. & Hendriksen, P. V., 2009, In : Solid State Ionics. 180, 23-25, p. 1298-1304

Research output: Contribution to journalJournal articleResearchpeer-review

The effect of H2S on the performance of Ni-YSZ anodes in solid oxide fuel cells

Rasmussen, J. F. B. & Hagen, A., 2009, In : Journal of Power Sources. 191, 2, p. 534-541

Research output: Contribution to journalJournal articleResearchpeer-review

2008

Assessment of the cathode contribution to the degradation of anode-supported solid oxide fuel cells

Hagen, A., Liu, Y-L., Barfod, R. & Hendriksen, P. V., 2008, In : Journal of the Electrochemical Society. 155, 10, p. B1047-B1052

Research output: Contribution to journalJournal articleResearchpeer-review

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Defect and electrical transport properties of Nb-doped SrTiO3

Blennow Tullmar, P., Hagen, A., Kammer Hansen, K., Wallenberg, L. R. & Mogensen, M. B., 2008, In : Solid State Ionics. 179, 35-36, p. 2047-2058

Research output: Contribution to journalJournal articleResearchpeer-review

Structural properties and electrochemical performance of strontium- and nickel-substituted lanthanum cobaltite

Hjalmarsson, P., Søgaard, M., Hagen, A. & Mogensen, M. B., 2008, In : Solid State Ionics. 179, 17-18, p. 636-646

Research output: Contribution to journalJournal articleResearchpeer-review

Study of Internal and External Leaks in Tests of Anode-Supported SOFCs

Rasmussen, J. F. B., Hendriksen, P. V. & Hagen, A., 2008, In : Fuel Cells. 8, 6, p. 385-393

Research output: Contribution to journalJournal articleResearchpeer-review

2007

Detailed characterization of anode-supported SOFCs by impedance spectroscopy

Barfod, R., Mogensen, M. B., Klemensø, T., Hagen, A., Liu, Y-L. & Hendriksen, P. V., 2007, In : Journal of the Electrochemical Society. 154, 4, p. B371-B378

Research output: Contribution to journalJournal articleResearchpeer-review

2006

A depth-resolved in-situ study of the reduction and oxidation of Ni-based anodes in solid oxide fuel cells

Hagen, A., Poulsen, H. F., Klemensø, T., Martins, R. V., Honkimäki, V., Buslaps, T. & Feidenshans'l, R., 2006, In : Fuel Cells. 6, p. 361-366

Research output: Contribution to journalJournal articleResearchpeer-review

An investigation into the Ti-grafting structure on MCM-41 and epoxidation catalysis

Yuan, Q. C., Hagen, A. & Roessner, F., 2006, In : Applied Catalysis A - General. 303, 1, p. 81-87

Research output: Contribution to journalJournal articleResearchpeer-review

Degradation of anode supported SOFCs as a function of temperature and current load

Hagen, A., Barfod, R., Hendriksen, P. V., Liu, Y-L. & Ramousse, S., 2006, In : Journal of The Electrochemical Society. 153, p. A1165-A1171

Research output: Contribution to journalJournal articleResearchpeer-review

Dehydrogenation of light alkanes over rhenium catalysts on conventional and mesoporous MFI supports

Rovik, A. K., Hagen, A., Schmidt, I., Dahl, S., Chorkendorff, I. & Christensen, C. H., 2006, In : Catalysis Letters. 109, 3-4, p. 153-156

Research output: Contribution to journalJournal articleResearchpeer-review

2004

Modification of acid supports by solid-state redox reaction. Part 1. Preparation and characterization

Hagen, A., Schneider, E., Kleinert, A. & Roessner, F., 2004, In : Journal of Catalysis. 222, p. 227-237

Research output: Contribution to journalJournal articleResearchpeer-review

Modification of acid supports by solid-state redox reaction. Part 2. Acid and catalytic properties

Hagen, A., Schneider, E., Benter, M., Krogh, A., Kleinert, A. & Roessner, F., 2004, In : Journal of Catalysis. 226, p. 171-182

Research output: Contribution to journalJournal articleResearchpeer-review

2003

Catalytic and Chemical Properties of Boiler Deposits from Orimulsion Fuel

Rasmussen, S. B., Hagen, S., Masters, S. G., Hagen, A., Ståhl, K., Eriksen, K. M., Simonsen, P., Nørklit Jensen, J., Berg, M., Fehrmann, R. & Chorkendorff, I., 2003, In : PowerPlant Chemistry. 5, 6, p. 360-369

Research output: Contribution to journalJournal articleResearchpeer-review