RT info:eu-repo/semantics/article T1 A bio-based alginate aerogel as an ionic liquid support for the efficient synthesis of cyclic carbonates from CO2 and epoxides A1 Paninho, Ana B. A1 Mustapa, Ana Najwa Binti A1 Mahmudov, Kamran T. A1 Pombeiro, Armando J. L. A1 Guedes da Silva, M. Fátima C. A1 Bermejo Roda, Maria Dolores A1 Martín Martínez, Ángel A1 Cocero Alonso, María José A1 Nunes, Ana V. M. K1 Carbon dioxide K1 Epoxy compounds K1 Alginates K1 Supercritical fluids K1 Ionic solutions K1 Catalysis K1 Cyclic carbonates K1 Cycloaddition K1 Alginate Aerogel K1 3303 Ingeniería y Tecnología Químicas AB In this work, the ionic liquid [Aliquat][Cl] was supported into alginate and silica aerogel matrices and applied as a catalyst in the cycloaddition reaction between CO2 and a bio-based epoxide (limonene oxide). The efficiency of the alginate aerogel system is much higher than that of the silica one. The method of wet impregnation was used for the impregnation of the aerogel with [Aliquat][Cl] and a zinc complex. The procedure originated a well-defined thin solvent film on the surface of support materials. Final materials were characterised by Fourier Transform Infrared Spectroscopy, N2 Adsorption–Desorption Analysis, X-ray diffraction, atomic absorption and Field Emission Scanning Microscopy. Several catalytic tests were performed in a high-pressure apparatus at 353.2 K and 4 MPa of CO2. PB MDPI SN 2073-4344 YR 2021 FD 2021 LK https://uvadoc.uva.es/handle/10324/59485 UL https://uvadoc.uva.es/handle/10324/59485 LA eng NO Catalysts, 2021, Vol. 11, Nº. 8, 872 NO Producción Científica DS UVaDOC RD 23-may-2024