HEИндивидуална стипендия2024–2026

COFPOR-4-fuels · Fuel forming electrocatalysis: Devising multifunctional covalent organic frameworks with vinylenic linkage for electrocatalytic CO2 reduction and water oxidation

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

Период: 2024-01-15 → 2026-01-14
Финансиране от ЕС: 181 153 €
Участници: 1
Схема: HORIZON-TMA-MSCA-PF-EF

Линиите свързват координатора с партньорите.

Накратко на български

Порестата органични структури се изследват като катализатори за превръщане на въглеродния диоксид в полезни горива и химикали. Това помага за намаляване на вредните емисии и намалява зависимостта от изкопаемите ресурси.

Този кратък обзор е генериран от изкуствен интелект

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

Резултати накратко

Fuel forming electrocatalysis: Devising multifunctional covalent organic frameworks with vinylenic linkage for electrocatalytic CO2 reduction and water oxidation

Reducing carbon dioxide emissions is one of the biggest scientific and societal challenges linked to climate change. One promising route is to turn carbon dioxide into useful fuels and chemicals using renewable electricity. This approach can help store renewable energy and reduce dependence on fossil resources. However, carbon dioxide is a very stable molecule, so it requires efficient and durable catalysts to convert it in a controlled way. This project focuses on a class of porous materials called covalent organic frameworks (COFs). COFs are crystalline, sponge-like solids built from light elements (such as carbon, nitrogen and oxygen). Their key advantage is that their structure can be designed at the molecular level. This makes them attractive for electrocatalysis, because the pores can be tuned to guide how molecules enter, react, and leave the catalyst. The overall objective of the project is to develop robust COF-based electrocatalysts that can support two linked reactions: carbon dioxide reduction (converting carbon dioxide into value-added products), and water oxidation (the complementary reaction that can provide electrons and protons in an overall “artificial photosynthesis” concept). A second major objective is to understand how these catalysts work during operation. In many catalyst studies, performance is measured only by electrical signals (current). Here, the project aims to also detect chemical species formed at the electrode surface during electrolysis. This is important because it allows mechanism-guided catalyst design, which speeds up progress and reduces trial-and-error development. The pathway to impact is stepwise: (1) design and synthesize COFs with controlled structure; (2) strengthen and tune the framework chemistry to improve stability and CO2 affinity; (3) evaluate performance for CO2 conversion and water oxidation; and (4) use operando infrared spectroelectrochemistry to observe reaction species at the electrode interface under applied voltage. This approach is expected to deliver improved catalyst concepts and reusable design rules that can support future CO2 conversion technologies aligned with EU climate goals.

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

Цел на проекта

Global energy demands and increase in the utilization of fossil fuels have contributed towards rising CO2 concentration in the atmosphere, giving rise to grave environmental concerns such as the green house effect. In order to achieve decarbonization of the energy system, the European Green Deal considers the development of innovative technologies, as the one contemplated in this project, as a key point. Generation of chemical fuels by mimicking photosynthesis is a promising technique. The significance of plant photosynthesis to convert CO2 with H2O into carbohydrates and O2 by sunlight in a green manner is widely known. Artificial photosynthesis is expected to efficiently mimic this process for reducing CO2 with H2O as electron donor, that is, integrating CO2 reduction reaction (CO2RR) and H2O oxidation half reactions in one catalytic system. Electroreduction of CO2 into value-added fuels is of significant importance but remains a big challenge because of poor selectivity, low current density, and large overpotential. Crystalline porous covalent organic frameworks (COFs) are promising alternative electrode materials for CO2RR owing to their tunable and accessible single active sites. This proposal aims at introducing a new class of COFs based electrocatalysts to rationally explore the use of heterogeneous electrocatalysts offering both chemical tunability and stability in harsh reaction conditions. The development of an electrocatalytic model system is proposed herein, which will be meticulously executed via strategic synthetic protocols and optimized by solid-state chemical procedures and crystal engineering so as to provide insights into the architecture of the COFs, reactive intermediates and mechanistic steps involved in the electrocatalytic process.

Оригинален текст от CORDIS (на английски).

Участници

FUNDACIO INSTITUT CATALA D'INVESTIGACIO QUIMICA · TARRAGONAКоординаторИспания