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Dual challenges in the discovery and sustainability of nanozeolites: controlling defect sites and structural flexibility

Project description

Enhanced understanding of nanozeolite formation will lead to rational design

Catalysis is fundamental to most chemical processes, speeding up the rate of reactions but also enhancing their selectivity. Nanocatalysts are typically even more effective than their bulk counterparts thanks to their extremely large surface area-to-volume ratio and their unique and exotic properties. Zeolites, a class of nanoporous crystalline inorganic materials, are among the most versatile nanocatalysts. Releasing their full potential through the rational design of novel nanozeolites will require better understanding of the molecular interactions guiding their crystallisation. The EU-funded ZEOLIghT project intends to do just that and use the knowledge to engineer novel nanozeolites for applications in heterogeneous catalysis.

Objective

Zeolites are a class of nanoporous crystalline inorganic materials that rank among the most versatile catalysts and are capable of facilitating the development of sustainable chemistry, separation and emerging processes.
The aim of ZEOLIghT is to understand the fundamental molecular-level interactions leading to specific crystallization events of nanozeolites to direct their properties. The three challenges are: 1. rational formation of molecularly-ordered precursors with different tetrahedral (T)-atoms, understanding the fundamentals of zeolite growth kinetics in colloidal and high solid precursors resulting in frameworks with controlled defects and flexible structures (Fundamental understanding of defects and flexibility of nanozeolites), 2. translate the discovery at the atomistic scale to development of novel nanozeolites and fine-tuning of relevant properties including crystals size, pore dimension, framework structure, bulk chemistry, and stability (Engineering nanozeolites), and 3. relate the defects and flexibility as the origin of the remarkable properties of ultra-stable zeolites for applications in heterogeneous catalysis: the selection of the non-oxidative conversion of methane reaction as a specific case, but not limited to, will be considered (Application). The mysterious “defects” associated with the generation of various silanol species, Brønsted acid sites, and vacancies as integral parts of the reaction center of zeolites and their relation to the framework flexibility will be elucidated by advanced characterization.
The ZEOLIghT project will be the fundamental scientific driver for seeking novel nanozeolites and fully realize the knowledge gained in global cases where porous materials are considered. The key achievements are understanding the properties of nanozeolites by uncovering the consequences of defects and flexibility. The nanozeolites will claim a sizeable share of the global zeolite market for both classical and emerging applications.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-ERC - HORIZON ERC Grants

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Call for proposal

(opens in new window) ERC-2021-ADG

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Host institution

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
Net EU contribution
€ 2 500 000,00
Address
RUE MICHEL ANGE 3
75794 Paris
France
Region
Ile-de-France Ile-de-France Paris
Activity type
Research Organisations
Links
Total cost
€ 2 500 000,00

Beneficiaries (1)