A simplified route to the synthesis of CMK-3 replica based on precipitation polycondensation of furfuryl alcohol in SBA-15 pore system
| Autor: | Francisco Rodríguez-Reinoso, Anna Wach, Paula Niebrzydowska, Rafał Janus, Sebastian Jarczewski, Ana Silvestre-Albero, Piotr Kuśtrowski |
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| Přispěvatelé: | Materiales Avanzados, Universidad de Alicante. Departamento de Química Inorgánica, Universidad de Alicante. Instituto Universitario de Materiales |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Furfuryl alcohol
Química Inorgánica Materials science Carbonization chemistry.chemical_element General Chemistry Ethylbenzene Styrene Synthesis of CMK-3 replica chemistry.chemical_compound Precipitation polycondensation chemistry Chemical engineering Desorption SBA-15 pore system Polymer chemistry General Materials Science Dehydrogenation Mesoporous material Carbon |
| Zdroj: | RUA. Repositorio Institucional de la Universidad de Alicante Universidad de Alicante (UA) |
| Popis: | A novel method of synthesis of mesoporous, polymer-derived CMK-3 carbon replica was proposed. Instead of a multi-stage, time-consuming and toxic solvent involving procedure, the direct, acid-catalyzed precipitation polycondensation of furfuryl alcohol to poly(furfuryl alcohol) (PFA), as the carbon precursor, in the pore system of SBA-15 silica was used. The optimal PFA/SBA-15 mass ratio resulting in the complete pore filling was found. The final carbon material was obtained by carbonization of the formed composite and subsequent removal of silica by treatment with HF. Low-temperature sorption of nitrogen, powder X-ray diffraction and transmission electron microscopy confirmed the formation of well-ordered, hexagonal carbon mesostructure. The produced CMK-3 exhibited the presence of oxygen-containing surface groups, recognized as mainly carbonyl and carboxyl species by X-ray photoelectron spectroscopy and temperature-programmed desorption. The presence ofthese groups caused the mesoporous carbon to be catalytically active in the oxidative dehydrogenation of ethylbenzene to styrene. This work was supported by the National Science Centre under the Grant No. DEC–2011/01/N/ST5/05595. Rafał Janus wishes to thank the Foundation for Polish Science MPD Programme co-financed by the EU European Regional Development Fund for the financial support. The research was carried out with the equipment purchased thanks to the financial support of the European Regional Development Fund in the framework of the Polish Innovation Economy Operational Program (contract No. POIG.02.01.00-12-023/08). |
| Databáze: | OpenAIRE |
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