A Bio-Based Alginate Aerogel as an Ionic Liquid Support for the Efficient Synthesis of Cyclic Carbonates from CO2 and Epoxides
| Autor: | Ana Najwa Mustapa, Armando J. L. Pombeiro, Ana B. Paninho, M.D. Bermejo, Ana V.M. Nunes, Kamran T. Mahmudov, Ángel Martín, M. Fátima C. Guedes da Silva, María José Cocero |
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| Přispěvatelé: | LAQV@REQUIMTE, DQ - Departamento de Química |
| Rok vydání: | 2021 |
| Předmět: |
CO2
Materials science Alginates chemistry.chemical_element Epoxide TP1-1185 Zinc cyclic carbonates 010402 general chemistry 01 natural sciences Catalysis supported ionic liquids Limonene carbonate epoxides chemistry.chemical_compound Epoxides supercritical Alginate aerogels Supercritical Physical and Theoretical Chemistry Fourier transform infrared spectroscopy QD1-999 Cycloaddition cycloaddition Supported ionic liquids Supercritical fluids Ionic solutions 010405 organic chemistry Chemical technology Cyclic carbonates Aerogel Epoxy compounds 0104 chemical sciences CO Solvent Chemistry 3303 Ingeniería y Tecnología Químicas Carbon dioxide chemistry Chemical engineering Ionic liquid alginate aerogels Alginate Aerogel limonene carbonate |
| Zdroj: | Catalysts Volume 11 Issue 8 Catalysts, Vol 11, Iss 872, p 872 (2021) Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| ISSN: | 2073-4344 |
| Popis: | Producción Científica 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. |
| Databáze: | OpenAIRE |
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