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Catalysts
Volume 15
Issue 5
10.3390/catal15050427
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Review

Catalytic Aspects of Liquid Organic Hydrogen Carrier Technology

by
Róbert Barthos
1,
Ferenc Lónyi
1,*,
Yuting Shi
1,2,
Ágnes Szegedi
1,
Anna Vikár
1,
Hanna E. Solt
1 and
Gyula Novodárszki
1
1
Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Magyar tudósok körútja 2, 1117 Budapest, Hungary
2
Doctoral School of Environmental Science, ELTE Eötvös Lorand University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary
*
Author to whom correspondence should be addressed.
Catalysts 2025, 15(5), 427; https://doi.org/10.3390/catal15050427 (registering DOI)
Submission received: 5 March 2025 / Revised: 22 April 2025 / Accepted: 24 April 2025 / Published: 27 April 2025
(This article belongs to the Special Issue Sustainable Catalysis for Green Chemistry and Energy Transition)
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Abstract

The surge in photovoltaic (PV) power generation has made it increasingly difficult to integrate the intermittent PV industry into the power grid while maintaining grid stability. The solution is to use the seasonal surplus of PV electricity to produce “green” hydrogen through water electrolysis and then use the hydrogen as an energy source or as a reactant in chemical processes in the chemical industry to produce value-added products. However, the development of advanced hydrogen storage technologies to ensure the safe handling, transportation, and distribution of H2 is a major issue. The use of stable liquid organic hydrogen carriers (LOHCs) has emerged as a suitable technology for hydrogen storage. This review highlights prospective LOHC technologies based on reversible catalytic hydrogenation–dehydrogenation cycles of liquid organic molecules for hydrogen storage and release under mild temperature and pressure conditions. The state-of-the-art LOHC systems are critically reviewed, highlighting the most effective heterogeneous catalytic systems.
Keywords: hydrogen storage; liquid organic hydrogen carriers (LOHCs); heterogeneous catalytic systems; catalytic hydrogenation–dehydrogenation hydrogen storage; liquid organic hydrogen carriers (LOHCs); heterogeneous catalytic systems; catalytic hydrogenation–dehydrogenation
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MDPI and ACS Style

Barthos, R.; Lónyi, F.; Shi, Y.; Szegedi, Á.; Vikár, A.; Solt, H.E.; Novodárszki, G. Catalytic Aspects of Liquid Organic Hydrogen Carrier Technology. Catalysts 2025, 15, 427. https://doi.org/10.3390/catal15050427

AMA Style

Barthos R, Lónyi F, Shi Y, Szegedi Á, Vikár A, Solt HE, Novodárszki G. Catalytic Aspects of Liquid Organic Hydrogen Carrier Technology. Catalysts. 2025; 15(5):427. https://doi.org/10.3390/catal15050427

Chicago/Turabian Style

Barthos, Róbert, Ferenc Lónyi, Yuting Shi, Ágnes Szegedi, Anna Vikár, Hanna E. Solt, and Gyula Novodárszki. 2025. "Catalytic Aspects of Liquid Organic Hydrogen Carrier Technology" Catalysts 15, no. 5: 427. https://doi.org/10.3390/catal15050427

APA Style

Barthos, R., Lónyi, F., Shi, Y., Szegedi, Á., Vikár, A., Solt, H. E., & Novodárszki, G. (2025). Catalytic Aspects of Liquid Organic Hydrogen Carrier Technology. Catalysts, 15(5), 427. https://doi.org/10.3390/catal15050427

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