| title: | New microporous and mesoporous materials and their characterization with solid-state NMR techniques. |
|---|---|
| reg no: | ETF5136 |
| project type: | Estonian Science Foundation research grant |
| subject: |
1.3. Physics |
| status: | completed |
| institution: | Institute of Chemical Physics and Biophysics |
| head of project: | Priit Sarv |
| duration: | 01.01.2002 - 31.12.2003 |
| description: | Microporous and mesoporous materials are of fundamental importance in different areas of adsorption and catalysis technologies. The NMR technique gives information about the structure, nature and density of the active sites involved in catalysis and diffusion based processes. Of utmost importance is the distribution and siting of active sites. New NMR techniques have to be developed and the existing ones refined and implemented to achieve progress in this type of characterization. The aim of the project is the synthesis and the full NMR characterization of micro- and mesoporous materials which are considered as a candidate for the preparation of the new catalysts. These new materials usually pose challenges for the NMR characterization and drive the invention of new techniques and solutions. The present project will contain two main tasks. The first one is related to the stability of the active sites in zeolites with 10- and 12-member rings and tailoring the activity by controling the process of dealumination. We plan to achieve that by diluting the aluminum atoms with metal atoms of lower thermal stability. Our hypothesis is that the release of less stable atom from the framework will promote the selective dealumination. The second task concerns the new catalyst formation on the basis of silica-alumina mesoporous materials. We will try to explain the role of doping of the alumina matrix with silicon and formation by this way new catalytically active sites. This project will be carried out in cooperation with the Institute of Catalysis and Surface Chemistry, Krakow, Poland. The group, headed by Dr. Miroslaw Derewinski, will be responsible for the primary synthesis of the materials. During the first year of the project all materials will be synthesized in Krakow and further characterized in both cooperating institutions.During the second year the postsynthesis treatment will be done and its impact on the properties and structure will be determined. |
| project group | ||||
|---|---|---|---|---|
| no | name | institution | position | |
| 1. | Ivo Heinmaa | ICPB | senior research scientist | |
| 2. | Priit Sarv | ICPB | senior research scientist | |