NANOCER · Nanoporous ordered non-oxide Ceramics
6РП — Действия „Мария Кюри“
- Период
- 2006-11-06 → 2008-11-05
- Финансиране от ЕС
- 153 353 €
- Участници
- 1
- Схема
- IIF
Линиите свързват координатора с партньорите.
Накратко на български
Неоксидни керамики, като борнитрид и силициев карбид, се създават чрез специални шаблони за постигане на равномерна нанопореста структура. Тези материали са устойчиви на високи температури и химически влияния, което ги прави полезни за нанотехнологиите, катализата и аналитичната химия.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Цел на проекта
The objective is to synthesise non-oxide mesoporous materials, boron nitride (BN) and silicon carbide (SiC). These new materials will have both high thermal and chemical stabilities associated to an homogeneous mesoporosity (pore diameter 2-30 nm), periodically structured. They will find applications in catalysis, in analytical chemistry, and also in nanotechnologies. In the case of silica, the self-assembly process has led to materials with a periodical arrangement of nanopores having an homogenous size. Copo lymers triblock have been used as structurating agents for the synthesis of ordered SBA-15 mesoporous silica with an hexagonal porosity organization and with pore size up to 30 nm. Mesoporous carbons have been recently prepared by using silica as hard-templates. Sucrose, infiltrated in the channels of the porous silica, is carbonized. A mesoporous carbon is obtained after template elimination by chemical washing. To extend the field of ordered mesoporous silica to non-oxide materials, we will use this innovative exo-templating approach. Mesoporous silica will be used as hard-templates to perform the synthesis of ordered porous non-oxide materials. Infiltration of hard-templates can be performed using a liquid ceramic precursor (a borazinic or a polysilane co mpound), followed with a ceramization step. For boron nitride, the molecular precursor is the trichloroborazine, TCB (B3N3H3Cl3). For the silicon carbide, a polydimethylsilane precursor (PDMS) will be used. Various pyrolysis steps to convert precursors (TC B or PDMS) into ceramics will be studied. Characterizations of the materials will be carried out using X-ray diffraction analysis, Scanning and Transmission Electronic Microscopies, NMR, Infrared and Raman analysis. Porosity will be studied by using adsorption/desorption of nitrogen. X-ray photoelectron spectroscopy (XPS) and Rutherford Backscattering Spectrometry (RBS) will be performed to characterize BN and SiC mesoporous films.""
Оригинален текст от CORDIS (на английски).
Участници
- UNIVERSITE CLAUDE BERNARD LYON 1 · VILLEURBANNEКоординаторФранция
Връзки
Данни: CORDIS, © Европейски съюз