Metal alkoxides are easily available and versatile precursors for functional materials,
such as solid catalysts. However, the poor solubility of metal alkoxides in organic solvents usually
hinders their facile application in sol–gel processes and complicates access to complex carbonate
or oxidic compounds after hydrolysis of the precursors. In our contribution we have therefore
shown three different solubilization strategies for metal alkoxides, namely the derivatization, the
hetero-metallization and CO2 insertion. The latter strategy leads to a stoichiometric insertion of CO2
into the metal–oxygen bond of the alkoxide and the subsequent formation of metal alkyl carbonates.
These precursors can then be employed advantageously in sol–gel chemistry and, after controlled
hydrolysis, result in chemically defined crystalline carbonates and hydroxycarbonates. Cu- and
Zn-containing carbonates and hydroxycarbonates were used in an exemplary study for the synthesis
of Cu/Zn-based bulk catalysts for methanol synthesis with a final comparable catalytic activity to
commercial standard reference catalysts.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:87361 |
| Date | 10 October 2023 |
| Creators | Hanf, Schirin, Lizandara-Pueyo, Carlos, Emmert, Timo Philipp, Jevtovikj, Ivana, Gläser, Roger, Schunk, Stephan Andreas |
| Publisher | MDPI |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 554, 10.3390/catal12050554 |
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