Electrocatalytic Applications for Hydrogen Storage in the Form of Liquid Organic Hydrogen Carriers (LOHCs)

Jose A. Mata^a, Elena Mas-Marzá^a, Antonio Guerrero^a, Francisco Fabregat-Santiago^a, Carmen Mejuto^a, Andrés Mollar^a, Nihal El Guenani^a, David Carvajat^a

^aInstitute of Advanced Materials (INAM), University Jaume I, Av. Vicent Sos Baynat, s/n, 12071, Castellón de la Plana, Spain.

Materials for Sustainable Development Conference (MATSUS)
Proceedings of Materials for Sustainable Development Conference (MAT-SUS) (NFM22)

#Suschem- Materials and electrochemistry for sustainable fuels and chemicals

Barcelona, Spain, 2022 October 24th - 28th

Organizers: Marta Costa Figueiredo and Raffaella Buonsanti

Contributed talk, Jose A. Mata, presentation 100
DOI: https://doi.org/10.29363/nanoge.nfm.2022.100
Publication date: 11th July 2022

One of the major limitations of renewables is their intermittent character which depends on climate conditions. The problem is a complete disconnection between energy production and demand. Consequently, the storage of energy surpluses from renewables becomes a necessity. To tackle this problem, in this work we propose an efficient way of energy storage based on using green hydrogen as an energy vector. The aim is to develop efficient systems for hydrogen storage in the form of chemical bonds based on Liquid Organic Hydrogen Carriers (LOHCs) [1].

From a chemical view, the key point of efficient LOHCs lies in the design of suitable catalysts and processes for the conversion and reconversion of hydrogen into chemical bonds. In this work, we describe our preliminary results in the field [2][3] and the last results in electrocatalytic dehydrogenation of amines and the catalytic hydrogenation of nitriles as efficient systems for hydrogen storage in the form LOHCs.

References:

[1] Preuster, P.; Papp, C.; Wasserscheid, P.; Liquid Organic Hydrogen Carriers (LOHCs): Toward a Hydrogen-free Hydrogen Economy. Acc. Chem. Res. 2017, 50, 74–85

[2] Ventura-Espinosa, D.; Carretero-Cerdán, A.; Baya, M.; García, H. and Mata J. A. Catalytic dehydrogenative coupling of hydrosilanes with alcohols for the production of hydrogen on-demand: Application of the pair silane/alcohol as liquid organic hydrogen carrier. Chemistry: A European Journal 45, (2017), 10815 – 10821.

[3] Ventura-Espinosa, D.; Sabater, S.; Carretero-Cerdán, A.; Baya, M. and Mata* J. A. High production of hydrogen on demand from silanes catalyzed by iridium complexes as a versatile hydrogen storage system. ACS Catalysis 8,(2018), 2558 – 2566

[4] Mollar-Cuni, A.; Ventura-Espinosa, D.; Martín, S.; García, H. and Mata* J. A. Reduced Graphene Oxides as Carbocatalysts in Acceptorless Dehydrogenation of N-Heterocycles. ACS Catalysis 11,(2021), 14688 – 14693

[5] Porcar, R.; Mollar-Cuni, A.; Ventura-Espinosa, D.; Luis, S. V.; García-Verdugo* E. and Mata* J. A.. A simple, safe and robust system for hydrogenation “without gases” under batch and flow conditions using a liquid organic hydrogen carrier. Green Chemistry 24,(2022), 2036 – 2043

Acknowledgements:

The authors thank the financial support from MICIU/AEI/FEDER/FSE (RTI2018-098237-B-C22), Generalitat Valenciana (PROMETEU/2020/028) and Universitat Jaume I (P1.1B2015-09).

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