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The project “Eco-Friendly Surface Modification of Electrode Materials in Deep Eutectic Solvents: An Innovative Strategy for Enhancing Photo- and Electrocatalysts for the Hydrogen Evolution Reaction” is a two-year research project focused on advancing the development of efficient photo- and electrocatalysts for the Hydrogen Evolution Reaction (HER). This research aims to investigate the kinetic and mechanisms of electrodeposition, electrooxidation, and electroless deposition of photo- and electroactive layers on cost-effective substrates using eco-friendly electrolytes, specifically room-temperature deep eutectic solvents (DESs). The ultimate goal is to produce high-performance cathode materials for the eco-friendly production of “green” hydrogen. The project addresses the critical need for sustainable hydrogen production via electrolysis using renewable energy sources.While the HER is well-studied, the search for cost-effective, abundant, and durable electrode materials with comparable or superior catalytic activity to noble metals remains essential. Noble metals are limited by their cost, availability, durability, and susceptibility to catalyst poisoning. This research project focuses on three main objectives: 1. Investigating the electrooxidation processes of titanium and its alloys in DESs to produce highly organized nanostructured titanium dioxide layers with excellent photocatalytic activity for HER. 2. Studying the electrochemical deposition of nickel, cobalt, Ni-Co alloys, and their composites onto non-noble metal substrates and conductive carbon-based materials to create efficient electrocatalytic and photoelectrocatalytic coatings for HER. 3. Characterizing the electroless deposition of electrocatalysts based on cobalt, nickel, Ni-Co alloys, and platinum group metals onto various substrates to obtain highly efficient electrocatalysts for HER. Each objective involves determining kinetic parameters, such as rate constants and activation energies, and understanding the underlying mechanisms. The catalytic activity of newly developed electrode materials will be evaluated by assessing parameters like hydrogen evolution overpotential and exchange current density in different aqueous solutions.The project utilizes DESs known for their attractive physicochemical properties, stability, and biodegradability, ensuring an eco-friendly approach.Methodologically, the project uses advanced techniques including electrochemical methods, spectral analysis (SEM, AFM, TEM, FTIR, Raman spectroscopy, EDS, XRD, and XPS), and chemical analysis (AAS, ICP, XRF) to comprehensively investigate and characterize electrode materials and coatings. Statistical methods will aid in data analysis and interpretation.The research team embraces multi- and interdisciplinary approaches, open science principles, FAIR data access, and gender equality in research to ensure robust and collaborative scientific progress.The project\'s expected outcomes include the development of theories describing design and properties of innovative photo- and electrocatalysts, a diverse and cohesive research team, enhanced research capabilities, and increased visibility for young scientists. Ultimately, this project contributes to advancing sustainable hydrogen production and supports the EU\'s and SK\'s commitment to a green hydrogen economy. |
