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Directed Evolution of Metastable Electrocatalyst Interfaces for Energy Conversion

Project description

Transforming electrocatalysis with high entropy materials

Electrocatalysis faces a critical challenge: understanding and controlling the metastable active interfaces of catalysts, which evolve under reaction conditions. Traditional methods focus on static, initial states, leading to limited progress with elemental or binary alloy catalysts. In this context, the EU-funded DEMI project will use high entropy materials (HEM) to explore vast, multidimensional catalyst spaces. Combining theoretical modelling, high-throughput synthesis, and advanced operando techniques, DEMI will develop new, stable, and active electrocatalysts. Key innovations include evolutionary screening, accelerated atomic-scale characterisation, and high-throughput operando experiments. By establishing a theory of metastability and using active learning approaches, DEMI seeks to advance electrocatalysis for crucial energy conversion reactions, including oxygen reduction and CO2 reduction.

Objective

It is our aim to transform the research field of electrocatalysis from the established “initial (as-synthesized) state approach” to a data-centric understanding of the metastable active interface of electrocatalysts, constantly evolving under reaction conditions. We want to overcome the limitations of elemental or binary alloy catalysts by exploring and exploiting high entropy materials (HEM) as a discovery platform for sustainable materials, with the aim to identify in the extremely large, multidimensional search space new electrocatalysts that are both stable and active.
To understand and control the active interface of HEM electrocatalysts, we combine the core expertises of the PIs: theoretical modelling and simulations, high-throughput synthesis and characterization, nanoparticle synthesis, electrochemical operando techniques as well as machine learning. Our synergistic approach will significantly advance these individual competences by key conceptual innovations: (i) Evolutionary screening of micro-libraries to efficiently identify stable materials covering the complete HEM composition space; (ii) Accelerated atomic-scale characterization of HEM surfaces by combining combinatorial HEM synthesis with atom probe tomography; (iii) High-throughput operando experiments with thin film material libraries; (iv) Developing inverse activity-structure relationships and theoretical descriptors for metastability; v) Implementing active learning approaches based on materials informatics and using a semantic data lake.
We will establish a theory of metastability as a core concept for the understanding of electrocatalysis for the most important energy conversion reactions: oxygen reduction and evolution, and CO2 reduction. Instead of passively accepting the degradation of catalysts during operation, we will direct the evolution through the highly multidimensional space towards long-lasting, active HEM interfaces.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-ERC-SYG - HORIZON ERC Synergy Grants

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Call for proposal

(opens in new window) ERC-2023-SyG

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Host institution

KOBENHAVNS UNIVERSITET
Net EU contribution
€ 2 498 340,00
Address
NORREGADE 10
1165 KOBENHAVN
Denmark
Region
Danmark Hovedstaden Byen København
Activity type
Higher or Secondary Education Establishments
Links
Total cost
€ 2 498 340,00

Beneficiaries (4)