Cathrine Frandsen

2025

Hysteresis loops of exchange-coupled magnetic nanoparticle clusters

Kure, M., Durhuus, F. L., Frandsen, C. & Beleggia, M., 2025, In: Journal of Physics D: Applied Physics. 58, 18, 10 p., 185001.

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Néel Relaxation of Magnetic Nanoparticle Clusters

Durhuus, F. L., Rix, T. H. V. B., Głód, M. A., Beleggia, M. & Frandsen, C., 2025, In: IEEE Magnetics Letters. 16, p. 1-5

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2024

Conservation laws for interacting magnetic nanoparticles at finite temperature

Durhuus, F. L., Beleggia, M. & Frandsen, C., 2024, In: Physical Review B. 109, 5, 19 p., 054421.

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Magnetic and viscous dynamics of spheroidal nanoparticles

Durhuus, F. L., Beleggia, M. & Frandsen, C., 2024, In: Physical Review B. 110, 14, 15 p., 144425.

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Theory-guided development of a barium-doped cobalt catalyst for ammonia decomposition

Gunnarson, A., Cao, A., Sloth, O. F., Varón, M., Bueno Villoro, R., Veile, T., Damsgaard, C. D., Frandsen, C., Nørskov, J. K. & Chorkendorff, I., 2024, In: Energy and Environmental Science. 17, 23, p. 9313-9322

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2023

Investigation and Modeling of DC Bias Impact on Core Losses at High Frequency

Sanusi, B. N., Zambach, M., Frandsen, C., Beleggia, M., Jørgensen, A. & Ouyang, Z., 2023, In: IEEE Transactions on Power Electronics. 38, 6, p. 7444 - 7458

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Magnetic levitation by rotation

Hermansen, J. M., Durhuus, F. L., Frandsen, C., Beleggia, M., Bahl, C. R. H. & Bjørk, R., 2023, In: Physical Review Applied. 20, 15 p., 044036.

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Nanocriticality in the magnetic phase transition of CoO nanoparticles

Kamminga, M. E., Birk, J. O., Hjøllum, J., Jacobsen, H., Lass, J., Koch, T. L., Christensen, N. B., Niedermayer, C., Keller, L., Kuhn, L. T., Ulrikkeholm, E. T., Brok, E., Frandsen, C. & Lefmann, K., 2023, In: Physical Review B. 107, 6, 6 p., 064424.

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Retrofittable plug-flow reactor for in situ high-temperature vibrating sample magnetometry with well-controlled gas atmospheres

Almind, M. R., Engbæk, J. S., Hansen, M. F., Vendelbo, S. B., Mortensen, P. M., Damsgaard, C. D., Veile, T., Chorkendorff, I. & Frandsen, C., 2023, In: Review of Scientific Instruments. 94, 6, 10 p., 063907.

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The Impact of Sample Insulation on Estimating the Heating Power of Magnetic Nanoparticles by AC Calorimetry

Hanson, L. G., Hansen, B. L., Veile, T., Zambach, M., Christensen, N. B. & Frandsen, C., 2023, In: IEEE Magnetics Letters. 14, p. 1-5

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Universal Synthesis of Half-Metallic Diatomic Catalysts for Efficient Oxygen Reduction Electrocatalysis

Yao, Y., Jiang, T., Lim, S. Y., Frandsen, C., Li, Z., Dou, Y., Wu, F., Qin, J., Zou, J., Stamate, E. & Zhang, W., 2023, In: Small. 19, 49, 10 p., 2304655.

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2022

Order and Disorder in Layered Double Hydroxides: Lessons Learned from the Green Rust Sulfate-Nikischerite Series

Dideriksen, K., Voigt, L., Mangayayam, M. C., Eiby, S. H. J., van Genuchten, C. M., Frandsen, C., Jensen, K. M. Ø., Stipp, S. L. S. & Tobler, D. J., 2022, In: ACS Earth and Space Chemistry. 6, 2, p. 322–332 11 p.

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Prenormative verification and validation of a protocol for measuring magnetite-maghemite ratios in magnetic nanoparticles

Bogart, L. K., Fock, J., da Costa, G. M., Witte, K., Greneche, J.-M., Zukrowski, J., Sikora, M., Latta, D. E., Scherer, M. M., Hansen, M. F., Frandsen, C. & London, U., 2022, In: Metrologia. 59, 1, 11 p., 015001.

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Vibrating sample magnetometer (vsm) with a sample holder

Frandsen, C. (Inventor), Almind, M. (Inventor), Chorkendorff, I. (Inventor) & Engbæk, J. (Inventor), 15 Sept 2022, IPC No. G01R 33/ 12 A I, Patent No. WO2022189504, 9 Mar 2021, Priority date 9 Mar 2021, Priority No. EP20210161620

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2021

Electrified methane reforming: Elucidating transient phenomena

Wismann, S. T., Engbæk, J. S., Vendelbo, S. B., Eriksen, W. L., Frandsen, C., Mortensen, P. M. & Chorkendorff, I., 2021, In: Chemical Engineering Journal. 425, 7 p., 131509.

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Optimized CoNi Nanoparticle Composition for Curie-Temperature-Controlled Induction-Heated Catalysis

Almind, M. R., Vinum, M. G., Wismann, S. T., Hansen, M. F., Vendelbo, S. B., Engbæk, J. S., Mortensen, P. M., Chorkendorff, I. & Frandsen, C., 2021, In: ACS Applied Nano Materials . 4, 11, p. 11537–11544 8 p.

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Simulated clustering dynamics of colloidal magnetic nanoparticles

Durhuus, F. L., Wandall, L. H., Boisen, M. H., Kure, M., Beleggia, M. & Frandsen, C., 2021, In: Nanoscale. 13, p. 1970-1981

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2020

Improving performance of induction-heated steam methane reforming

Almind, M. R., Vendelbo, S. B., Hansen, M. F., Vinum, M. G., Frandsen, C., Mortensen, P. M. & Engbæk, J. S., 2020, In: Catalysis Today. 342, p. 13-20 8 p.

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2019

Electrified methane reforming: A compact approach to greener industrial hydrogen production

Wismann, S. T., Engbæk, J. S., Vendelbo, S. B., Bendixen, F. B., Eriksen, W. L., Aasberg-Petersen, K., Frandsen, C., Chorkendorff, I. & Mortensen, P. M., 2019, In: Science. 364, 6442, p. 756-759 4 p.

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Electrified Methane Reforming: Understanding the Dynamic Interplay

Wismann, S. T., Engbæk, J. S., Vendelbo, S. B., Eriksen, W. L., Frandsen, C., Mortensen, P. M. & Chorkendorff, I., 2019, In: Industrial and Engineering Chemistry Research. 58, 51, p. 23380-23388

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Enhanced intrinsic saturation magnetization of Zn_xCo_1−xFe₂O₄ nanocrystallites with metastable spinel inversion

Andersen, H. L., Granados-Miralles, C., Saura-Múzquiz, M., Stingaciu, M., Larsen, J., Søndergaard-Pedersen, F., Ahlburg, J. V., Keller, L., Frandsen, C. & Christensen, M., 2019, In: Materials Chemistry Frontiers. 3, 4, p. 668-679 12 p.

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Modelling the effect of different core sizes and magnetic interactions inside magnetic nanoparticles on hyperthermia performance

Jonasson, C., Schaller, V., Zeng, L., Olsson, E., Frandsen, C., Castro, A., Nilsson, L., Bogart, L. K., Southern, P., Pankhurst, Q. A., Morales, M. P. & Johansson, C., 2019, In: Journal of Magnetism and Magnetic Materials. 477, p. 198-202 5 p.

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2018

⁵⁷Fe-Mössbauer spectroscopy and electrochemical activities of graphitic layer encapsulated iron electrocatalysts for the oxygen reduction reaction

Zhong, L., Frandsen, C., Mørup, S., Hu, Y., Pan, C., Cleemann, L. N., Jensen, J. O. & Li, Q., 2018, In: Applied Catalysis B: Environmental. 221, p. 406-412 7 p.

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Dipolar-coupled moment correlations in clusters of magnetic nanoparticles

Bender, P., Wetterskog, E., Honecker, D., Fock, J., Frandsen, C., Moerland, C., Bogart, L. K., Posth, O., Szczerba, W., Gavilan, H., Costo, R., Fernandez-Diaz, M. T., Gonzalez-Alonso, D., Fernandez Barquin, L. & Johansson, C., 2018, In: Physical Review B. 98, 22, 11 p., 224420.

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Directing a Non-Heme Iron(III)-Hydroperoxide Species on a Trifurcated Reactivity Pathway

Wegeberg, C., Lauritsen, F. R., Frandsen, C., Mørup, S., Browne, W. R. & Mckenzie, C. J., 2018, In: Chemistry - A European Journal. 24, 20, p. 5134-5145

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Dual-Function Cobalt-Nickel Nanoparticles Tailored for High-Temperature Induction-Heated Steam Methane Reforming

Vinum, M. G., Almind, M. R., Engbaek, J. S., Vendelbo, S. B., Hansen, M. F., Frandsen, C., Bendix, J. & Mortensen, P. M., 2018, In: Angewandte Chemie. 57, 33, p. 10569-10573 6 p.

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On the interpretation of Mössbauer spectra of magnetic nanoparticles

Fock, J., Hansen, M. F., Frandsen, C. & Mørup, S., 2018, In: Journal of Magnetism and Magnetic Materials. 445, p. 11-21

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Photoinduced O₂-Dependent Stepwise Oxidative Deglycination of a Nonheme Iron(III) Complex

Wegeberg, C., Fernández-Alvarez, V. M., de Aguirre, A., Frandsen, C., Browne, W. R., Maseras, F. & McKenzie, C. J., 2018, In: Journal of the American Chemical Society. 140, 43, p. 14150-14160 11 p.

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Relating Magnetic Properties and High Hyperthermia Performance of Iron Oxide Nanoflowers

Bender, P., Fock, J., Frandsen, C., Hansen, M. F., Balceris, C., Ludwig, F., Posth, O., Wetterskog, E., Bogart, L. K., Southern, P., Szczerba, W., Zeng, L., Witte, K., Gruettner, C., Westphal, F., Honecker, D., González-Alonso, D., Fernández Barquín, L. & Johansson, C., 2018, In: The Journal of Physical Chemistry Part C. 122, 5, p. 3068–3077

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2017

Colloidal Flower-Shaped Iron Oxide Nanoparticles: Synthesis Strategies and Coatings

Gavilán, H., Kowalski, A., Heinke, D., Sugunan, A., Sommertune, J., Varón, M., Bogart, L. K., Posth, O., Zeng, L., González-Alonso, D., Balceris, C., Fock, J., Wetterskog, E., Frandsen, C., Gehrke, N., Grüttner, C., Fornara, A., Ludwig, F., Veintemillas-Verdaguer, S. & Johansson, C. & 1 others, Morales, M. P., 2017, In: Particle & Particle Systems Characterization. 34, 7, 12 p.

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Effect of carbon on interstitial ordering and magnetic properties of ε-Fe2(N,C)_1-z

Brink, B., Ståhl, K., Christiansen, T. L., Frandsen, C., Hansen, M. F., Beran, P. & Somers, M. A. J., 2017, In: Journal of Alloys and Compounds. 694, p. 282-291

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Formation Mechanism of Maghemite Nanoflowers Synthesized by a Polyol-Mediated Process

Gavilán, H., Sánchez, E. H., Brollo, M. E. F., Asín, L., Moerner, K. K., Frandsen, C., Lázaro, F. J., Serna, C. J., Veintemillas-Verdaguer, S., Morales, M. P. & Gutiérrez, L., 2017, In: ACS Omega. 2, 10, p. 7172-7184 13 p.

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Glycine buffered synthesis of layered iron(II)-iron(III) hydroxides (green rusts)

Yin, W., Huang, L., Pedersen, E. B., Frandsen, C. & Hansen, H. C. B., 2017, In: Journal of Colloid and Interface Science. 497, p. 429-438

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Induced Mesocrystal-Formation, Hydrothermal Growth and Magnetic Properties of α-Fe₂O₃ Nanoparticles in Salt-Rich Aqueous Solutions

Brok, E., Larsen, J., Varón, M., Hansen, T. W. & Frandsen, C., 2017, In: Crystals. 7, 8, 15 p., 248.

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Light-Activated Oxidation of the Ligand of an Iron(III) Complex

Wegeberg, C., Fernández, V., Frandsen, C., Maseras, F., Browne, W. R. & McKenzie, C., 2017. 1 p.

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Magnetic dipolar ordering and hysteresis of geometrically defined nanoparticle clusters

Kure, M., Beleggia, M. & Frandsen, C., 2017, In: Journal of Applied Physics. 122, 13, 7 p., 133902 .

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Off-axis spin orientation in goethite nanoparticles

Brok, E., Lefmann, K., Nilsen, G. J., Kure, M. & Frandsen, C., 2017, In: Physical Review B. 96, 10, 10 p., 104426 .

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On the ‘centre of gravity’ method for measuring the composition of magnetite/maghemite mixtures, or the stoichiometry of magnetite-maghemite solid solutions, via 57Fe Mössbauer spectroscopy

Fock, J., Bogart, L. K., González-Alonso, D., Espeso, J. I., Hansen, M. F., Varón, M., Frandsen, C. & Pankhurst, Q. A., 2017, In: Journal of Physics D: Applied Physics. 50, 26, 16 p., 265005 .

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Spin orientation in solid solution hematite-ilmenite

Brok, E., Frandsen, C., Lefmann, K., McEnroe, S. A., Robinson, P., Burton, B. P., Hansen, T. C. & Harrison, R., 2017, In: American Mineralogist. 102, 6, p. 1234-1243 10 p.

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Why iron oxide nanoflowers are great candidates for magnetic hyperthermia

Bender, P., Fock, J., Frandsen, C., Hansen, M. F., Balceris, C., Ludwig, F., Posth, O., Wetterskog, E., Bogart, L. K., Southern, P., Szczerba, W., Zeng, L., Grüttner, C., Westphal, F., Honecker, D., González-Alonso, D., Barquín, L. F. & Johansson, C., 2017.

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2016

Composition-dependent variation of magnetic properties and interstitial ordering in homogeneous expanded austenite

Brink, B. K., Ståhl, K., Christiansen, T. L., Frandsen, C., Hansen, M. F. & Somers, M. A. J., 2016, In: Acta Materialia. 106, p. 32-39 8 p.

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Direct observation of the thermal demagnetization of magnetic vortex structures in nonideal magnetite recorders: Thermal Demagnetization of Vortex States

Almeida, T. P., Muxworthy, A. R., Kovács, A., Williams, W., Nagy, L., Conbhuí, P. O., Frandsen, C., Supakulopas, R. & Dunin-Borkowski, R. E., 2016, In: Geophysical Research Letters. 43, 16, p. 8426-8434 9 p.

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Halogen-Bonding-Assisted Iodosylbenzene Activation by a Homogenous Iron Catalyst

de Sousa, D. P., Wegeberg, C., Vad, M. S., Mørup, S., Frandsen, C., Donald, W. A. & Mckenzie, C. J., 2016, In: Chemistry - A European Journal. 22, 11, p. 3810–3820 12 p.

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Induction-Heated Hydrogen Production

Wismann, S. T., Chorkendorff, I., Frandsen, C. & M. Mortensen, P., 2016. 1 p.

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Precipitation pathways for ferrihydrite formation in acidic solutions

Zhu, M., Frandsen, C., Wallace, A. F., Legg, B., Khalid, S., Zhang, H., Mørup, S., Banfield, J. F. & Waychunas, G. A., 2016, In: Geochimica et Cosmochimica Acta. 172, p. 247-264 18 p.

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Uncertainty budget for determinations of mean isomer shift from Mössbauer spectra

Fock, J., Bogart, L. K., Posth, O., Hansen, M. F., Pankhurst, Q. A. & Frandsen, C., 2016, In: Hyperfine Interactions. 237, 1, p. 23 11 p.

Research output: Contribution to journal › Conference article › Research › peer-review

2015

Anomalous Particle Size Dependence of Magnetic Relaxation Phenomena in Goethite Nanoparticles

Frandsen, C., Madsen, D. E., Boothroyd, C. B. & Mørup, S., 2015, In: Croatica Chemica Acta. 88, 4, p. 481-485 5 p.

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Effect of maghemization on the magnetic properties of nonstoichiometric pseudo-single-domain magnetite particles

Almeida, T. P., Muxworthy, A. R., Kasama, T., Williams, W., Damsgaard, C. D., Frandsen, C., Pennycook, T. J. & Dunin-Borkowski, R. E., 2015, In: Geochemistry, Geophysics, Geosystems. 16, 9, p. 2969-2979 11 p.

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Effect of maghemization on the magnetic properties of pseudo-single-domain magnetite particles

Almeida, T., Muxworthy, A., Kasama, T., Williams, W., Damsgaard, C. D., Frandsen, C., Pennycook, T. & Dunin-Borkowski, R., 2015. 1 p.

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Erratum: In Situ Studies of Fe⁴⁺ Stability in β-Li₃Fe₂(PO₄)₃ Cathodes for Li Ion Batteries

Christiansen, A. S., Johnsen, R. E., Norby, P., Frandsen, C., Mørup, S., Jensen, S. H., Kammer Hansen, K. & Holtappels, P., 2015, In: Journal of The Electrochemical Society. 162, 6, p. X11-X11

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Cathrine Frandsen

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