NANOTUNE · Sustainable routes to shaped nanoparticles for selective catalysis
7РП — „Хора“ (Действия „Мария Кюри“)
- Период
- 2010-05-17 → 2012-05-16
- Финансиране от ЕС
- 173 241 €
- Участници
- 1
- Схема
- MC-IIF
Линиите свързват координатора с партньорите.
Накратко на български
Наночастиците се изследват чрез контролиране на техния размер, форма и химичен състав за създаване на специфични катализатори. Това помага за подобряване на ефективността и селективността на химичните реакции чрез промяна на повърхностните свойства на металите.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Резултати накратко
Sustainable routes to shaped nanoparticles for selective catalysis
Research on nanocatalysis is currently an area of intense activity since the reduction in the dimensions of an active material provides new catalytic behaviours that are not scalable from bulk-like properties. This phenomenon is predominantly a consequence of the resulting quantisation of electrons upon their confinement to nanoscale dimensions. A major target of nanocatalysis is the promotion, enhancement and control of chemical reactions by controlling the size, dimensionality, chemical composition and morphology of the reaction centre. The uniformity and stability of the nanomaterials is also of crucial importance, ensuring that the catalytic reagents all encounter equivalent environments during the course of the reaction. The tuning of the surface electronic properties of the metal can have a dramatic effect in the adsorption/desorption properties of substrates, and hence on the overall selectivity of the transformation. In addition, the use of metallic particles that are asymmetric in nature change the surface structure that is presented to the substrate during a catalytic reaction. It is widely known that different crystallographic planes interact in different manners to substrates, therefore this control in particle morphology will be exploited in order to tune the ideal surface to maximise catalytic efficiency and effectiveness. NANOTUNE is a Marie Curie project aiming to design and subsequently control the size, shape and composition of nanoparticles for catalytic applications. The main objectives of the project are: • To make nanoparticles with controlled electronic and structural properties • To make catalysts containing these nanoparticles • To characterise the catalysts in detail, using advanced characterisation techniques • To understand how the properties of the nanoparticles affect catalytic selectivity, and so prepare improved catalysts The materials prepared were centred on using palladium as the active metal, since palladium is an active catalyst in a wide range of catalytic reactions. In this project, the catalysts have been applied in two industrial relevant reactions: direct hydrogen peroxide synthesis from H2 and O2, and selective hydrogenation of chloronitrobenzene.
Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз
Цел на проекта
The IIF project NANOTUNE aims to design novel palladium nanoparticle-based catalysts with tuned particle properties, and use them to control the selectivity of catalytic reactions. Changes to the support and addition of second metals will be used to tune the electronic properties of the nanoparticles. In addition, the particle shape will be varied using templating species such as organic ligands or changing the porosity of the support. By a combination of these techniques, it will be possible to design a catalyst to give high catalytic selectivity. The catalysts will be tested in the direct synthesis of hydrogen peroxide from hydrogen and oxygen, and chemoselective hydrogenation of substrates relevant to the fine chemicals and pharmaceutical industries. The reactions were selected on the basis of their relevance to the sustainability and economic development of Europe. A high-level understanding of the shape and surface chemistry of the nanocatalysts will be achieved by using advanced characterisation methods, including solid state NMR, X-ray synchotron techniques, high resolution TEM and Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS). Work in these areas will be in collaboration with the academic sector, both in the UK and Europe. The Fellow, Dr. Elena Cristina Corbos, is currently working in Japan, and will move to the UK and bring knowledge of the preparation of modified supports and DRIFTS catalyst analysis to the EU and to the host. The project has the potential to impact significantly on the future economic and sustainable development of the EU. Synthesis of catalysts with controlled properties is in line with the vision of the knowledge economy, which is a key part of the EU’s future prosperity. Increased selectivity of catalytic reactions will improve sustainability, with fewer raw materials and energy required for the same yield of product.
Оригинален текст от CORDIS (на английски).
Участници
- JOHNSON MATTHEY PLC · LONDONКоординаторОбединеното кралство
Връзки
Данни: CORDIS, © Европейски съюз