Filtern
Erscheinungsjahr
- 2019 (2) (entfernen)
Dokumenttyp
- Zeitschriftenartikel (1)
- Vortrag (1)
Sprache
- Mehrsprachig (2) (entfernen)
Schlagworte
- Catalysts (1)
- Double complex salts (1)
- Mechanochemistry (1)
- Single-source precursors (1)
- XRD (1)
Organisationseinheit der BAM
- 6 Materialchemie (2) (entfernen)
Eingeladener Vortrag
- nein (1)
Perhaps due in no small part to its historical mystique, mechanochemistry has been shrowded in relative obscurity for quite some time. The successes of mechanochemistry in organic synthesis have often been curtailed by a fundamentally limited mechanistic understanding. Lately, however, the community has made great strides towards understanding the fundamentals, as well as large steps forward regarding industrially significant scale-up via twin-screw extrusion. A variety of recent work has traded in some of mechanochemistry’s mystique for simple, straight-forward chemical guidelines.
Preparation of new bimetallic compounds, including double complex salts (DCSs), containing both a platinumgroup metal and a transition metal of the fourth period is of great interest since these compounds can act as precursors of bimetallic materials. One example of using such compounds is the preparation of ultrafine particles of solid solutions of metals or intermetallic compounds on various supports to fabricate highly efficient catalysts with a low content of noble
metals.
Compounds containing coordinated oxalate anions are important objects of synthetic chemistry and interesting precursors. For example, a lot of attention is given to salts with [M(C2O4)2]2– anions, where M = Co, Ni, Cu, Pt, Pd. On the one hand, the uniqueness of oxalate coordinated anions is due to the fact that they are easily obtained and are stable both in aqueous solutions and in the solid phase; on the other hand, they are thermally decomposed at relatively low temperatures, which makes them promising precursors for the fabrication of metallic and oxide materials.