Projects / Programmes
Heterogeni katalizatorji (Slovene)
January 1, 1999
- December 31, 2003
| Code |
Science |
Field |
Subfield |
| 1.04.00 |
Natural sciences and mathematics |
Chemistry |
|
| Code |
Science |
Field |
| P360 |
Natural sciences and mathematics |
Inorganic chemistry |
Researchers (7)
Organisations (1)
| no. |
Code |
Research organisation |
City |
Registration number |
No. of publicationsNo. of publications |
| 1. |
0104 |
National Institute of Chemistry |
Ljubljana |
5051592000 |
21,007 |
Abstract
In the last five years basic research has been focused on the syntheses and characterisation of novel nanocrystalline zeolite-like and aluminophosphate meso- and microporous molecular sieves and their transition metal-modified analogues. These three-dimensional, structurally ordered materials, possess a variety of unusual and in particular, potentially useful physico-chemical, optical and electrical properties.
Modifications of three dimensional lattice were performed via the procedure of isomorphous substitution whereas the modifications of basic structural topologies resulted from the use of various organic templates, metallorganic co-ordination complexes and/or different inorganic ions.
The determination of crystal structures was carried out by the use of powder- and single crystal conventional and synchrotron X-ray diffraction. Additional structure-related information was collected by the use of solid-state MAS NMR and EXAFS spectroscopies. The method of anomalous dispersion was further developed and tuned to the use at or near specific absorption edges of transition metals studied.
Further research plans include a basic research on highly-ordered meso- and microporous aluminophosphate-based molecular sieves. The properties of these materials will be tailored to their specific intended uses, e.g. finely dispersed metal catalysts or electrochemical sensors.
A part of further research will also be directed towards the development of novel, highly structurally-ordered nanocomposite materials that are suitable as a matrix for building of large-pore frameworks. These frameworks, capable of encapsulating atom- or molecular clusters, possess specific properties and peculiarities that can be modified predominantly by the nature, kind and quantity of the incorporated metal atom(s).
The area of applied research will include the study of Si-, Al- and Zr-oxide-based aerogels, their mixtures and their metal-modified varieties. Part of the applied research will also concentrate on the study of liquid and crystalline alkaline earth silicates as well as on research on hydration course of multi-component blended cement consisting of Portland cement, calcium carbonate, fly ash, silica fume and blastfurnace slag.
Most important scientific results
Final report
Most important socioeconomically and culturally relevant results
Final report
