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Nanoscale Mapping of Structure and Chemistry at Electrified Solid-Liquid Interfaces

Objective

Electrochemical interfaces are three-dimensional nanoscale landscapes where the arrangement of atoms, molecules, and ions dictates the efficiency and selectivity of energy conversion and storage reactions. In fuel cells, electrolyzers, and batteries, however, this nanoscale complexity remains largely hidden. Conventional methods average over large areas, masking critical variations in surface structure, solvent organization, and active site chemistry. Understanding this interfacial complexity is essential for the rational design of next-generation energy technologies and for enabling the transition to a sustainable, low-carbon energy economy.

NanoELECTRA will develop a transformative method that can directly “see” chemical and structural details at the nanoscale: three-dimensional electrochemical tip-enhanced Raman spectroscopy (3D EC-TERS) integrated within a combined electrochemical scanning probe microscopy platform. This volumetric approach will map surface structure, solvent and ion organization, and chemical composition under realistic operating conditions, providing capabilities that surpass the current state-of-the-art. Ultimately, the project will reach (sub)-nanometer resolution, establishing a direct link between nanoscale heterogeneities and macroscopic electrochemical performance.

Using well-defined model electrocatalytic systems, the project will correlate structural and chemical features with catalytic activity to derive transferable, spatially resolved interfacial descriptors that serve as universal guidelines for rational catalyst design. By revealing the hidden 3D complexity of electrified interfaces, NanoELECTRA addresses a central open question in interfacial science and delivers knowledge-driven insights with direct societal impact, supporting the development of sustainable energy technologies.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-ERC - HORIZON ERC Grants

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Call for proposal

(opens in new window) ERC-2026-STG

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Host institution

UNIVERSITAET INNSBRUCK
Net EU contribution
€ 1 455 458,00
Address
INNRAIN 52
6020 Innsbruck
Austria
Region
Westösterreich Tirol Innsbruck
Activity type
Higher or Secondary Education Establishments
Links
Total cost
€ 1 455 458,75

Beneficiaries (1)