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Surface acidity of novel mesostructured silicas with framework aluminum obtained by SBA-16 related synthesis |
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| Authors: | Jean Marcel R Gallo Chiara Bisio Leonardo Marchese Heloise O Pastore |
| Affiliation: | aGrupo de Peneiras Moleculares Micro e Mesoporosas, Instituto de Química, UNICAMP, CP 6154, CEP 13084-862, Campinas-SP, Brazil bDipartimento di Scienze e Tecnologie Avanzate and Centro Interdisciplinare Nano-SiSTeMI, Università del Piemonte Orientale “A. Avogadro”, Via Bellini 25G, I-15100 Alessandria, Italy |
| Abstract: | A novel SBA-16-related synthesis of mesostructured silica containing framework aluminum is reported here. This material was successfully synthesized using aluminum sulphate and the pH-adjusting method. The structural and porosity properties of this novel material were studied by X-ray diffraction and N2 adsorption at 77 K. The Al insertion was determined by 27Al-MAS-NMR and the acidity was monitored by infrared spectroscopy of CO adsorption at 100 K. |
| Keywords: | [Al]-SBA-16 PH-adjusting Acid sites Mesostructured silica Direct synthesis 27Al-MAS-NMR FTIR CO adsorption |
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