H2020Индивидуална стипендия2021–2023

NANOconfine · Nanopatterning and nanoconfinement for deterministic control of the local homogeneous and heterogeneous chemical environment in electrocatalytic CO2RR towards C3+ products

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2021-08-01 → 2023-07-31
Финансиране от ЕС: 178 320 €
Участници: 1
Схема: MSCA-IF

Линиите свързват координатора с партньорите.

Накратко на български

Наноструктурирани катализатори от мед и сребро се изследват, за да се превърне въглеродният диоксид в сложни химикали с три или повече въглеродни атома, като например n-пропанол. Това помага за намаляване на вредните емисии и създаване на ценни суровини за индустрията.

Този кратък обзор е генериран от изкуствен интелект

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

Резултати накратко

Nanopatterning and nanoconfinement for deterministic control of the local homogeneous and heterogeneous chemical environment in electrocatalytic CO2RR towards C3+ products

Decreasing the anthropogenic carbon emissions is one of the most urgent challenges of our society. Additional EU policies and incentives will be needed to further counter and eventually reverse emissions in the years to come. Capture of CO2 is considered necessary to reach the goal of zero-emission by 2050. The electrocatalytic CO2 reduction reaction (CO2RR) holds the prospect to mitigate carbon emissions and at the same time convert CO2 with renewable electricity into valuable chemicals for energy storage or as precursor for industry. Depending on the number of electrons transferred in the reaction, a variety of oxygenates and hydrocarbons can be obtained with already high selectivity demonstrated for C1 and C2 products. However, for the CO2RR to molecules with three or more carbon atoms (C3+) such as n-propanol, the fundamental knowledge and key-strategies to yield these economically attractive high-energy-density products are still lacking. In this context, NANOconfine aimed to contribute to the fundamental understanding of the electrocatalytic CO2RR and helped to develop key-strategies to yield these economically attractive chemical products. The project combines imec’s profound expertise on fabrication of nanopatterns and nanomaterials with the know-how on electrochemistry and electrocatalysis. The project goal was to investigate the effect of near-neighbors in nano-patterned co-catalyst systems (e.g. Cu and Ag) with additional confinement for optimal interchange of their reaction intermediates so that they can undergo coupling to higher carbon products. In order to design the optimal electrocatalyst architecture, a systematic approach was proposed to study the following effects on the CO2RR mechanism and product formation: (1) the near neighbor effect of nano-patterned co-catalysts, (2) the confinement of reaction intermediates in regular-arranged vertical SiO2 mesopores (2-10nm) and (3) the confinement and surface chemistry of different mesoporous metal 3D-nanowire networks.

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

Цел на проекта

The electrocatalytic CO2 reduction reaction (CO2RR) holds the prospect to mitigate carbon emissions and at the same time convert CO2 into valuable chemicals, preferably from renewable energy sources. Depending on the number of electrons transferred, a variety of oxygenates and hydrocarbons can be obtained with already high selectivity demonstrated for C1 and C2 products. However, for the CO2RR to molecules with three or more carbon atoms (C3+) such as n-propanol, the fundamental knowledge and key-strategies to yield these economically attractive high-energy-density products are still lacking. In NANOconfine we propose a novel concept for CO2RR electrocatalysis, a so-called “inverse catalyst nanoconfined architecture”, that enables trapping and enhanced C-C coupling of crucial reaction intermediates by deterministic control of the local homogeneous and heterogeneous chemical environment. Specifically, we target for beyond-state-of-the-art Faradaic Efficiency >50% towards n-propanol as high-value liquid product. In order to design the optimal electrocatalyst architecture, a systematical approach is proposed to study the following effects on the CO2RR mechanism and product formation: (1) the near neighbor effect of co-catalysts in close proximity, (2) the confinement of reaction intermediates in regular arranged SiO2 mesopores (2-10nm) and (3) the confinement and surface chemistry of different mesoporous oxide 3D networks (MgO, ZnO, TiO2). From this understanding, we will build a demonstrator consisting of a nano-patterned co-catalysts (e.g. Cu and Ag) which interchange their reaction intermediates through a mesoporous oxide network so that they can undergo coupling to higher carbon products at neighboring electrocatalyst sites. NANOconfine will provide fundamental insights on the CO2RR reaction mechanism towards C3+ products in order to push forward the state-of-the-art of this emerging research topic.

Оригинален текст от CORDIS (на английски).

Участници

INTERUNIVERSITAIR MICRO-ELECTRONICA CENTRUM · LeuvenКоординаторБелгия