HEИндивидуална стипендия2023–2025

OMATSOLFUEL · Valence band engineering of oxidation materials for cheap and sustainable solar fuel production

„Хоризонт Европа“ — Действия „Мария Склодовска-Кюри“

Период: 2023-09-01 → 2025-08-31
Финансиране от ЕС: 143 754 €
Участници: 1
Схема: HORIZON-TMA-MSCA-PF-EF

Линиите свързват координатора с партньорите.

Накратко на български

Фотокатализатори от оксиди и нитриди се разработват за превръщане на захари и индустриални отпадъци в водород и ценни химикали. Това помага за намаляване на парниковите газове и разходите за енергия в малките индустрии.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Valence band engineering of oxidation materials for cheap and sustainable solar fuel production

The production of solar fuels and solar H2 contributes to reducing greenhouse gas emissions and our dependency on fossil fuels. Current strategy relies on converting water into H2 and O2, the latter being an abundant and low value-added molecule. With that approach, only the solar H2 obtained with the reduction half-reaction is targeted; the oxidation half-reaction products are secondary. In OMATSOLFUEL (valence band engineering of Oxidation MATerials for cheap and Sustainable sOLar FUEL production) the spotlight is shifted toward the oxidation half-reaction for developing processes with which solar H2 is produced simultaneously with high valued-added co-products. OMATSOLFUEL deals with the photoconversion of model glucose reactive mixtures and sugar-rich industrial effluents, and especially with the development of photocatalysts with properties dedicated to these new reactions. Sugar-rich industrial effluents are renewable and considered as wastes; their valorization could help micro industries to become self-sufficient in fuels and energy, or at least reduce their energy-related cost. The value-added molecules that are co-produced with solar H2, if the photocatalysts are active and selective enough, could be sold and used in pharmaceutical or agroindustry, replacing molecules produced by the petrochemical industry. To contribute to this long-term objective, OMATSOLFUEL aims at developing powders and thin films oxides, oxynitrides, and chalcogenides photocatalysts, active and selective for the conversion of sugars. The main efforts will be on the electronic structure engineering by adjusting the S 3p, N 2p, O 2p, and metallic d orbitals to shift the valence band maximum and establishing structure-activity relationships between the resulting physico-chemical properties and the overall photocatalytic activity.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Given the need to reduce our greenhouse gas emissions and our dependence on fossil fuels, there is a great interest in the development of solar fuels and especially solar H2. However, the production cost of solar H2 is still not yet competitive. Current strategies rely on converting water into H2 and O2, a low-value-added molecule. This is because process feasibility was based on the reduction half-reaction, with the oxidation half-reaction being secondary. In OMATSOLFUEL, the focus is shifted instead to the oxidation half-reaction. I will develop routes for the photoconversion of model glucose reactive mixtures and rich-glucose industrial mixtures. They are cheap, renewable, and could help micro industries become self-sufficient in fuels and energy. Instead of simply generating H2 and O2, the glucose will be photocatalytically converted into high-value-added molecules (e.g. arabinose or erythrose) and H2. These molecules would be highly interesting for plummeting the cost of solar H2 and replacing molecules produced by the petrochemical industry. To reach this objective I will design efficient and selective photocatalysts based on oxynitrides and novel chalcogenides structures. The main efforts will be on the electronic structure engineering by adjusting the S 3p, N 2p, O 2p, and metallic d orbitals to shift the valence band maximum and the oxidation potential of the photogenerated holes closer to the targeted glucose oxidation potentials. Powders and thin films will be synthesized by soft route methods and chemical or physical vapor deposition methods. The resulting morphology, structural and electronic properties will be characterized with the well-equipped platform of the Institut des Matériaux de Nantes (IMN), and in particular with photoelectron spectroscopy.

Оригинален текст от CORDIS (на английски).

Участници

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS · ParisКоординаторФранция