Textured macro- and mesoporous alumina samples designed in the presence of different surfactant types

Autor(es)

Petrolini, Davi D. ^[1] ; Pulcinelli, Sandra H. ^[1] ; Santilli, Celso V. ^[1] ; Martins, Leandro ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista UNESP, Inst Quim, BR-14800900 Araraquara, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Sol-Gel Science and Technology; v. 71, n. 1, p. 9-15, JUL 2014.
• Citações Web of Science: 5

Resumo

This work presents a method that enables the synthesis of porous alumina in the presence of different types of surfactant. The method is based on a sol-gel transition, using surfactants and droplets of a nonpolar phase as templates. The main purpose was to establish a relationship between the templates and the resulting pore structure. The results show that depending on the type of surfactant used (ionic or nonionic), materials presenting variations in the pore family distribution, X-ray powder diffraction patterns and sample morphology were formed. During the synthesis of these alumina samples, the drying step caused loss of the porous structures, so the shrinkage due to different types of surfactants was evaluated. (AU)

• Processo FAPESP: 07/53073-4 - Cerâmicas mesoporosas e hibridos orgânico-inorgânicos multifuncionais preparados pelo processo sol-gel
• Beneficiário: Celso Valentim Santilli
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 10/01449-3 - Desenvolvimento de catalisadores heterogêneos porosos para a conversão de matérias-primas renováveis
• Beneficiário: Leandro Pierroni Martins
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores