Lewis acid insertion · Designed catalysts for tandem reactions – insertion of Lewis acid centres into the framework of layered double hydroxides for catalytic applications
„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“
- Период
- 2022-03-01 → 2024-08-31
- Финансиране от ЕС
- 213 530 €
- Участници
- 2
- Схема
- MSCA-IF
Линиите свързват координатора с партньорите.
Накратко на български
Многофункционални катализатори, базирани на слоени двойни хидроксиди, се разработват за превръщане на биомаса и пластмасови отпадъци в химикали. Това помага за създаването на по-ефективни и икономични алтернативи на технологиите, които разчитат на изкопаеми горива.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Резултати накратко
Designed catalysts for tandem reactions – insertion of Lewis acid centres into the framework of layered double hydroxides for catalytic applications
Among the most pressing challenges facing humanity, ensuring sufficient energy supply seems to be the largely impossible, so in parallel our CO2 emissions must be reduced to – at best - halt climate change. Today, the production of fuels and fine chemicals depends mainly on the accessibility of fossil fuels. In other words: We need to find environmentally friendly and economical but productive alternatives to replace fossil fuel-based technologies. The complete, complex solution is the biorefinery, whose technology is based on the use of renewable sources such as biomass, agricultural, urban and industrial wastes. All these wastes can be converted into fuels or chemicals, even on an industrial scale. The main problem is that efficient technologies are not yet available, as these processes are fundamentally different from established chemical technologies. For this reason, a considerable number of chemists are now engaged in the design and development of effective reactions, mostly catalytic, to carry out these important transformations. Moreover, the above reactions can be classified into a special group of catalytic reactions, which can be called complex or tandem catalytic reactions. This means that the whole process consists of several different chemical reactions, for which, unfortunately, different types of catalysts often have to be used. To simplify these processes, numerous multifunctional catalysts have been developed over the past four decades. Some of these catalysts – mainly based on active noble metal centers – have proven to be suitable for promoting the conversion of plastic waste and biomass into fine chemicals. The only problem is that these catalysts have too low an efficiency to build a valuable technology on. Moreover, the price of these catalysts is very high because they necessarily have to contain noble metals. My project aims to develop a new, noble metal-free technology that is a sustainable alternative to the above-mentioned process. This can be achieved by developing multifunctional catalysts based on layered double hydroxides (LDH) with (Brønsted) basic character in combination with Lewis acids (LA). However, for this purpose, a new synthesis strategy is required to incorporate these LA into the structure of LDH.
Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз
Цел на проекта
The scope of this project is to find out how could valuable organic molecules be synthesized in a more efficient, more economically friendly way than the currently applied technologies offer. The answer may be the designed catalysis. The well-known layered double hydroxides (LDH) and their composites are suitable for offering solutions for different catalytic problems. Numerous materials belong to this group of chemicals. They are widely used as catalysts, their catalytic application is usually based on the advantageous properties of their building components or the general properties of the material itself. By the insertion of catalytically active Lewis acid centres such as Ag(I), Bi(III), Au(I), Zr(IV), Sn(IV) or Hf(IV) into the framework of the hosts via the metal ion direct or mechanochemically assisted co-precipitation or polyoxometalate intercalation, the main aim of our work is to develop multifunctional catalysts on the basis of LDH. In certain cases the structure of the LDH can be easily modified giving the possibility to design catalysts to a specific reaction by installing different functions/functional groups into the initial structure. By combining certain types of catalysts (forming hybrid structures) and applying them as tandem catalysts, “one pot” syntheses of complex organic materials could possibly be accomplished. To carry out the most efficient tandem reactions with green chemically approach, the project will be largely focused on the exploration of structure–activity relationships. All of the most relevant factors (porosity, dimensionality, hydration, effects of counter ions or hosts) are being systematically investigated to maximize the efficiency of the catalysts in the chosen reactions. Obtaining deep knowledge from the prepared hybrid materials and their catalytic properties, on the basis of well-characterized catalysts, feasible tandem reactors and/or tandem flow reactor for the chosen reactions will be planned.
Оригинален текст от CORDIS (на английски).
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Данни: CORDIS, © Европейски съюз