Objective
The project concerns the research and development of a novel 3D nano-structured photo-anode for the direct photo-electrolysis of water to produce sustainable hydrogen. Improvements are found in the field of new synthesis technique, i.e. the cold-wall vacuum co-deposition, which allows multy-layered 3D nano-composite photo-anode fabrication, and in the novel Photo-ElectroChemical Conversion and Storage-cell (PECCS-cell) for the production and storage of hydrogen using solar energy. The final structure of the 3D photo-anode will exhibit improved visible-light absorption as a result of light-scattering due to the nano-structured surface morphology, increase of the visible-light absorption due to the sensitizers, and increase of the absorption efficiency by doping of TiO2. The absorption processes, photo-catalysis, defect distributions, and the charge transition process of the 3D nano-structured photo-anode will be investigated by using high-resolution scanning tunnel microscopy. The donor density will be studied using Electrochemical Impedance Spectroscopy (EIS), using for the DC-voltage dependence of the space-charge capacitance data the Mott-Schottky analysis. This analysis will provide quantitative information on the effect of the dopant on the semi-conductivity of the TiO2 particles in the composite photo-anode. If the sensitizer molecules form a percolating network, the Mott-Schottky analysis will be extended to this p-type network as well. The photo-anode and the storage compartment will be assembled in a photo-electrochemical cell and the photo-response of the novel PECCS-cell will be studied in detail. Two types of counter-electrode will be studied: (i) a conventional inert metallic counter electrode in the solution, (ii) the novel electrode compartment comprising the metal-hydride (MHx) and the proton-conducting ceramic membrane. The integrated electrode comprising the hydride-forming metal (MHx) connected to the aqueous electrolyte via a proton-conducting ceramic membrane and provides the in-situ storage of hydrogen. The H2 content of the MHx storage electrode will be monitored with a Nernst-type sensor using a small area of MHx as sensing electrode coupled to a thin proton-conducting membrane and a reference MHx,ref electrode. Synthesis of potential proton-conducting materials, characterisation of the crystal structure and defect chemistry as well as analysis of the chemical compatibility and stability between the proton-conducting membrane and the electrolyte interface, and between the proton-conducting membrane and MHx are an integral part of the project. The combination of the partners merge the above knowledge and expertise from different fields of science, and it is anticipated that the synergy of this will result in an efficient approach for an improved photo-electrolysis technology based on novel nano-composites for the production of sustainable hydrogen.
Fields of science (EuroSciVoc)
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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)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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.
Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
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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.
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Coordinator
DELFT
Netherlands
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.