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EXSOTHyC

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EXSOLUTION-BASED NANOPARTICLES FOR LOWEST COST GREEN HYDROGEN VIA ELECTROLYSIS

Today’s alkaline electrolysers favour current densities over efficiency: to achieve commercially relevant current densities, these systems typically operate at voltages exceeding 2 V/cell, corresponding to electrolyser power consu... ver más

31/12/2026

STARGATE HYDROGEN...

2M€

Presupuesto del proyecto: 2M€

Líder del proyecto

STARGATE HYDROGEN SOLUTIONS OU No se ha especificado una descripción o un objeto social para esta compañía.

Fecha límite participación Sin fecha límite de participación.

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Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2023-12-05

HORIZON-JTI-CLEANH2-2023-01-04: Photoelectrochemical (PEC) and/or P... Expected Outcome:Photo(electro)chemical systems have been identified as one of the promising technol...

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5 Participantes

STARGATE HYDROGEN SOLUTIONS...

838.31K€ | Lider

Fraunhofer

557.63K€ | Participante

USTAN

N.D. | Participante

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Duración del proyecto: 36 meses Fecha Inicio: 2023-12-05
Fecha Fin: 2026-12-31

Líder del proyecto

STARGATE HYDROGEN SOLUTIONS OU No se ha especificado una descripción o un objeto social para esta compañía.

Presupuesto del proyecto 2M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Today’s alkaline electrolysers favour current densities over efficiency: to achieve commercially relevant current densities, these systems typically operate at voltages exceeding 2 V/cell, corresponding to electrolyser power consumption of >54 kWh/kg. There are four reasons for employing high voltages: 1) electrodes’ insufficient electrochemical activity, 2) the relatively high gas permeability of commonly employed diaphragms means that improved hydrogen purity can be achieved at high current operation points, 3) the stack designs are not optimised for low-current operation due to very simple flow fields, and 4) high currents are required to achieve attractive electrolyser CAPEX costs (EUR/kW). Yet, there is a growing consensus that the wider adoption of green H2 is not hindered by electrolyser CAPEX: the costs of green H2 are in most cases vastly dominated by OPEX, which in turn is a direct function of electrolyser efficiency. Thus, to achieve lowest possible levelised cost of H2, efficiency should be prioritised over current density. EXSOTHyC will optimise electrolyser operation towards lower voltages and higher efficiencies. The innovation is three-fold and addressing all four above-mentioned reasons: • Alternative pathways to the O2 and H2 evolution reactions by new anode and cathode approaches • Novel concepts of membrane electrode assemblies with integrated components • Novel cell design to enhance overall cell efficiency by integrating disruptive concepts In the project, we adopt an approach combining computer simulations, rapid prototyping, and thorough experimental validation on single cell, SRU and short stack level. In a nutshell, we will combine electrodes made using powder metallurgy with ceramic nanoparticles fabricated by exsolution, leveraging on the synergy that both methods require reducing atmospheres. Also, membrane-electrode assemblies based on Zirfon will be developed. The cell/stack will be backed by computer modelling.

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