Two new coordination polymers, DUT-82 and DUT-83 (DUT – Dresden University of Technology), were synthesized by a solvothermal reaction in methanol of rhodium(II) acetate and the tricarboxylic acid H₃btc (btc – benzene-1,3,5-tricarboxylate) or H₃btb (btb – benzene-1,3,5-tribenzoate), respectively. After drying using supercritical carbon dioxide, aerogels with specific surface areas of up to 1150 m² gˉ¹ and pore volumes of up to 2.26 cm³ gˉ¹ were obtained. Although there is no long range order in the materials, the presence of rhodium paddle-wheel units and thus a local order was proven by X-ray absorption spectroscopy measurements. DUT-82 shows good performance in the adsorption of hydrogen and a high affinity for carbon monoxide, which is rarely observed for metal–organic frameworks. Catalytic investigations demonstrate the activity of DUT-82 in the heterogeneous hydrogenation of styrene as a model system. DUT-82 can be recycled for at least ten cycles underlining the stability during the course of reaction.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:36155 |
| Date | 02 December 2019 |
| Creators | Nickerl, Georg, Stoeck, Ulrich, Burkhardt, Ulrich, Senkovska, Irena, Kaskel, Stefan |
| Publisher | Royal Society of Chemistry |
| 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 | 2050-7496, 10.1039/c3ta12795h, info:eu-repo/grantAgreement/Deutsche Forschungsgemeinschaft/Porous Metal– Organic Frameworks/43332165//Poröse metallorganische Gerüstverbindungen/SPP 1362 |
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