Dr Alexander Harrison joined the Energy Storage and Energy Carriers group at Oxford in 2024 as a PDRA, with his main research work focussing on thermochemical heating and cooling for heat management in solid hydrogen storage systems, alongside other projects on applying chemical looping for processes such as ammonia production and CO2 utilisation.
His doctoral research, performed at the University of Cambridge in the group of Dr Ewa Marek, focussed on the fundamentals and applications of chemical looping catalysis for selective oxidation reactions.
Research Interests
- Solid hydrogen storage
- Thermo-chemical energy storage
- Carbon capture
- Catalysis and reaction engineering
- In-situ characterisation of reactive materials
Current Research Projects
- Reactors for coupled hydrogen storage and carbon capture: Experimental project investigating the use of magnesium looping carbon capture in tandem with hydride-based hydrogen storage, in order to recover the heats of reaction.
- Solid hydrogen storage for balancing renewable energy: Computational project modelling the use of thermally-integrated hydrogen storage with real-world windfarm power output.
- Materials for solid-state hydrogen storage: Collaborative experimental project investigating the use of recycled Magnesium-Aluminium alloys as hydrogen carriers.
- Chemical looping ammonia production: Experimental project investigating materials for two-step ammonia production using hydride-imide nitrogen carriers, with a particular emphasis on mechanisms of catalyst degradation and poisoning.
- Nonstoichiometric materials for chemical looping catalysis: Ongoing experimental and computational project understanding the interactions between metal catalysts and reactive metal oxides during chemical looping reactions for selective oxidation.
Research Group
Affiliated Academic
Publications
In-situ studies of oxygen transport mechanisms in Ag/SrFeO3−δ materials for chemical looping catalysis
Harrison ARP, Donat F, Steele JMA, Gebers JC, Fairclough SM et al. (2025)
BibTeX
@misc{insitustudiesof-2025/6,
title={In-situ studies of oxygen transport mechanisms in Ag/SrFeO3−δ materials for chemical looping catalysis},
author={Harrison ARP, Donat F, Steele JMA, Gebers JC, Fairclough SM et al.},
year = "2025"
}
Enhancement Strategies of Calcium Looping Technology and CaO-Based Sorbents for Carbon Capture.
Wang Z, Ma C, Harrison A, Alsouleman K, Gao M et al. (2025), Small (Weinheim an der Bergstrasse, Germany), 21(13), e2412463
BibTeX
@article{enhancementstra-2025/4,
title={Enhancement Strategies of Calcium Looping Technology and CaO-Based Sorbents for Carbon Capture.},
author={Wang Z, Ma C, Harrison A, Alsouleman K, Gao M et al.},
journal={Small (Weinheim an der Bergstrasse, Germany)},
volume={21},
pages={e2412463},
year = "2025"
}
Chemical looping based Low-pressure ammonia synthesis
Guo H, Harrison ARP, Gao M, Zhang X, Chen Q et al. (2024), Chemical Engineering Journal, 500, 157321
BibTeX
@article{chemicallooping-2024/11,
title={Chemical looping based Low-pressure ammonia synthesis},
author={Guo H, Harrison ARP, Gao M, Zhang X, Chen Q et al.},
journal={Chemical Engineering Journal},
volume={500},
pages={157321},
publisher={Elsevier},
year = "2024"
}
Kinetic and Thermodynamic Enhancement of Low-Temperature Oxygen Release from Strontium Ferrite Perovskites Modified with Ag and CeO<sub>2</sub>.
Harrison ARP, Kwong KY, Zheng Y, Balkrishna A, Dyson A et al. (2023), Energy & fuels : an American Chemical Society journal, 37(13), 9487-9499
BibTeX
@article{kineticandtherm-2023/7,
title={Kinetic and Thermodynamic Enhancement of Low-Temperature Oxygen Release from Strontium Ferrite Perovskites Modified with Ag and CeO<sub>2</sub>.},
author={Harrison ARP, Kwong KY, Zheng Y, Balkrishna A, Dyson A et al.},
journal={Energy & fuels : an American Chemical Society journal},
volume={37},
pages={9487-9499},
year = "2023"
}
How does the oxidation and reduction time affect the chemical looping epoxidation of ethylene?
Gebers JC, Harrison ARP & Marek EJ (2022), Discover Chemical Engineering, 2(1), 4
BibTeX
@article{howdoestheoxida-2022/12,
title={How does the oxidation and reduction time affect the chemical looping epoxidation of ethylene?},
author={Gebers JC, Harrison ARP & Marek EJ},
journal={Discover Chemical Engineering},
volume={2},
pages={4},
publisher={Springer Nature},
year = "2022"
}
Selective formation of propan-1-ol from propylene via a chemical looping approach
Harrison ARP & Marek EJ (2022), Reaction Chemistry & Engineering, 7(12), 2534-2549
BibTeX
@article{selectiveformat-2022/11,
title={Selective formation of propan-1-ol from propylene via a chemical looping approach},
author={Harrison ARP & Marek EJ},
journal={Reaction Chemistry & Engineering},
volume={7},
pages={2534-2549},
publisher={Royal Society of Chemistry (RSC)},
year = "2022"
}
Chemical Looping Combustion of a Biomass Char in Fe2O3‑, CuO‑, and SrFeO3−δ-Based Oxygen Carriers
Kwong KY, Harrison ARP, Gebers JC, Dennis JS & Marek EJ (2022), Energy & Fuels, 36(17), 9437-9449
BibTeX
@article{chemicallooping-2022/9,
title={Chemical Looping Combustion of a Biomass Char in Fe2O3‑, CuO‑, and SrFeO3−δ-Based Oxygen Carriers},
author={Kwong KY, Harrison ARP, Gebers JC, Dennis JS & Marek EJ},
journal={Energy & Fuels},
volume={36},
pages={9437-9449},
publisher={American Chemical Society (ACS)},
year = "2022"
}
