Project description
Enhancing models of processes at the electrode–electrolyte interface
Meeting the growing energy demand in a sustainable way is one of the biggest challenges of our time. The electrode–electrolyte interface is a critical component of many energy storage and energy generation devices. It is here that charge transfer, electrolyte decomposition and electrode degradation take place. As ions from the electrolyte solution adhere to the surface of the electrode, separated from the charges in the electrode itself, a so-called electric double layer is formed. This structure plays a critical role in electrochemical and electrocatalytic reactions. Through a comprehensive combination of experimental, theoretical and computational techniques, the EU-funded FRUMKIN project is developing a new model of processes occurring at the electric double layer.
Objective
The FRUMKIN project aims to develop and test a new model for the electric double-layer structure of the electrode-electrolyte interface and to investigate the impact of this double-layer structure on the kinetics and selectivity of electrochemical and electrocatalytic reactions. The inspiration for this new model comes from my own recent work that the classical Gouy-Chapman-Stern model for the electric double layer fails to properly describe the interface between an aqueous electrolyte and single-crystal platinum and gold electrodes. Specifically, our results indicate that there is an attractive interaction between ions and the electrode surface (unaccounted for in the Gouy-Chapman-Stern theory) that accumulates ions in the diffuse double layer, and that ions in the double layer interact with the electrode and with themselves through water-mediated hydration forces, approximately following the Hofmeister series. These effects are observed even for low electrolyte concentrations, explaining the invalidity of the Gouy-Chapman-Stern theory.
The FRUMKIN project will approach its research objectives using a variety of high-level experimental, spectroscopic, theoretical, and computational techniques. The heart of the experimental work is based on ac voltammetry, i.e. differential capacitance measurements of the various interfaces, and electrochemical measurements of reactivity. Modelling of the experimental differential capacitance curves is based on first-principles DFT calculations and coarse-grained free-energy-based classical density functional simulations of the double-layer properties. Experimental molecular details of both double-layer structure and reactivity will be obtained from in situ vibrational spectroscopy (Infrared and Raman) and advanced in situ X-Ray spectroscopy, specifically Near-Ambient Pressure X-Ray Photoelectron Spectroscopy and Total Electron Yield X-Ray Absorption Spectroscopy.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
This project's classification has been validated by the project's team.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
This project's classification has been validated by the project's team.
- natural sciences physical sciences quantum physics
- natural sciences chemical sciences catalysis electrocatalysis
- natural sciences physical sciences molecular and chemical physics
- natural sciences computer and information sciences computational science multiphysics
- natural sciences mathematics applied mathematics mathematical model
Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC)
MAIN PROGRAMME
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Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
ERC-ADG - Advanced Grant
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Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2020-ADG
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
2311 EZ Leiden
Netherlands
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