PROBING REACTION MECHANISMS IN PHOTOCATALYTIC H2 GENERATION

Projektinformationen

PREMHYDRO

ID Finanzhilfevereinbarung: 799778

DOI

10.3030/799778

Projekt abgeschlossen

EK-Unterschriftsdatum 23 Februar 2018

Startdatum 1 September 2018

Enddatum 31 August 2020

Finanziert unter

• EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions

Gesamtkosten

€ 175 866,00

EU-Beitrag

€ 175 866,00

Koordiniert durch

DUBLIN CITY UNIVERSITY
Ireland

Periodic Reporting for period 1 - PREMHYDRO (PROBING REACTION MECHANISMS IN PHOTOCATALYTIC H2 GENERATION)

Berichtszeitraum: 2018-09-01 bis 2020-08-31

Zusammenfassung vom Kontext und den Gesamtzielen des Projekts

A dramatic change is required in the energy vectors we currently use, with an urgent need to move away from fossil fuels, with a radical move towards renewable fuels required. This project works towards developing materials for solar hydrogen production.
The research involved developing efficient photochemical molecular systems for visible light-driven hydrogen production from water and also using time resolved studies to probe and characterize intermediates involved.
The overall objective is utilize solar energy to generate hydrogen from water and to convert CO2, a greenhouse gas into useful product.

Arbeit, die ab Beginn des Projekts bis zum Ende des durch den Bericht erfassten Berichtszeitraums geleistet wurde, und die wichtigsten bis dahin erzielten Ergebnisse

The aim was to construct new molecular assemblies having sunlight absorbing groups, together with a catalytic centres for hydrogen evolution or CO2 reduction. Anchoring groups were introduced for attachment to the electrode surface. This requires exceptional skill in terms of chemical reactivity knowledge. In addition to synthesis, a wide range of time-resolved (TRIR, TAS, TCSPC) studies allowed us to characterize reactive intermediates on the pico to milli second time scales. These types of studies are essential to design superior catalysts for hydrogen generation. Currently three manuscripts are in the draft form for publication, in addition to a IDF.

Fortschritte, die über den aktuellen Stand der Technik hinausgehen und voraussichtliche potenzielle Auswirkungen (einschließlich der bis dato erzielten sozioökonomischen Auswirkungen und weiter gefassten gesellschaftlichen Auswirkungen des Projekts)

We have developed new approaches for anchoring ruthenium and rhenium photocatalysts on to electrode surface. For the first time, spectroelectrochemistry has been combined with TRIR to identify reactive intermediates in the pathway towards generating hydrogen from water. In designing efficient photoelectrochemical cells for technology development, it is essential we know the intermediates involved. Our studies combining TRIR and spectroelectrochemistry opens up new research area that has been pioneered by us.

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