Publications per year
Publications per year
Personal profile
Profile
Main Research Area: Materials, Devices, and Diagnostics for Electrochemical Energy Conversion and Storage
- Physical processes, performance, and lifetime limiting effects in electrochemical energy systems
- Electrode and electrolyte materials for batteries and redox flow batteries
- Organic energy materials, membranes, polymers, synthesis
- Molecular electrochemistry
- Electrochemical impedance spectroscopy
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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Collaborations and top research areas from the last five years
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Publications
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Bipolar Verdazyl Radicals for Symmetrical Batteries: Properties and Stability in All States of Charge
Steen, J. S., De Vries, F., Hjelm, J. & Otten, E., 2023, In: ChemPhysChem. 24, 4, 8 p., e202200779.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile34 Downloads (Pure) -
On the Capacity and Stability of a Biosynthesized Bis-quinone Flow Battery Negolyte
Wilhelmsen, C. O., Pasadakis-Kavounis, A., Christiansen, J. V., Isbrandt, T., Almind, M. R., Larsen, T. O., Hjelm, J., Sørensen, J. L. & Muff, J., 2023, In: ACS Sustainable Chemistry & Engineering. 11, 24, p. 9206-9215 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Tuning Polybenzimidazole-Derived Crosslinked Interpenetrating Network Membranes for Vanadium Redox Flow Batteries
Pasadakis-Kavounis, A., Arslan, F., Almind, M. R., Aili, D. & Hjelm, J., 2023, (Accepted/In press) In: Batteries and Supercaps. e202300176.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile3 Downloads (Pure) -
Blatter Radicals as Bipolar Materials for Symmetrical Redox-Flow Batteries
Steen, J. S., Nuismer, J. L., Eiva, V., Wiglema, A. E. T., Daub, N., Hjelm, J. & Otten, E., 2022, In: Journal of the American Chemical Society. 144, p. 5051-5058 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile27 Downloads (Pure) -
Leveraging coordination chemistry in the design of bipolar energy storage materials for redox flow batteries
Skavenborg, M. L., McPherson, J. N., Pasadakis-Kavounis, A., Hjelm, J., Waite, T. D. & McKenzie, C. J., 2022, In: Sustainable Energy and Fuels. 6, p. 2179-2190 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Organic electrosynthesis for integration of renewable electricity into sustainable plastics, polymers and chemicals (OrganicEC)
Tran, D., Hjelm, J., Holtappels, P. W. & Kaiser, A.
01/12/2020 → 30/11/2023
Project: PhD
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MOF derived carbon nanofiber structures for electrocatalytic conversion of CO2
Nambi, A., Kaiser, A., Hjelm, J., Zhang, W. & Ruiter, G. D.
15/11/2020 → 14/11/2023
Project: PhD
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Engineering porous electrodes for advanced redox flow batteries
Liu, B., Hjelm, J., Simonsen, S. B., Forner-Cuenca, A., Brushett, F. & Cooper, S.
01/10/2020 → 30/09/2023
Project: PhD
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Reactor and membrane engineering of advanced redox flow batteries
Pasadakis-Kavounis, A., Gubler, L., Hjelm, J., Aili, D. & Wreland Lindström, R.
01/05/2020 → 31/08/2023
Project: PhD
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In situ studies of rechargeable batteries using neutron and hard X-ray diffraction
Graae, K. V., Koposov, A. 2., Younesi, S. R., Norby, P., Hjelm, J. & Ravnsbæk, D. B.
01/06/2019 → 27/04/2023
Project: PhD
Activities
- 1 Conference presentations
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Regenerating the performance of solid oxide electrolyzers by periodic treatments to extend lifetime
Christopher R. Graves (Speaker), Theis Løye Skafte (Other), Marco Marchese (Other), Anne Hauch (Other), Andrea Lanzini (Other), Karin Vels Hansen (Guest lecturer), Torben Jacobsen (Other), Peter Blennow (Other) & Johan Hjelm (Other)
13 Jun 2017Activity: Talks and presentations › Conference presentations
Press/Media
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Forsknings- og uddannelsesministeren på besøg hos batteriforskere på DTU
Tejs Vegge, Johan Hjelm, Jakob Kibsgaard & Henrik Madsen
09/10/2018
1 Media contribution
Press/Media: Press / Media