Buscar
Mostrando ítems 1-10 de 26
Mesoestruturas porosas a partir de materiais naturais
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Ciência e Engenharia de MateriaisProcessamento de Materiais a partir do Pó; Polímeros e Compósitos; Processamento de Materiais a part, 2012-12-17)
The MCM-41 mesoporous synthesis was done using rice hulls ash and chrysotile as
natural alternative silica sources. For the using of these sources, chemical and thermic
treatments were done in both materials. After ...
Highly ordered mesoporous Al-MCM-41 synthesis through valorization of natural sediment
(American Chemical Society, 2019-02-20)
In this work, natural sediment was used as an alternative and green inorganic source to synthesize valuable structured Al-MCM-41 material by a hydrothermal process. This intertidal sediment contains a mixture of clay ...
Influence of the synthesis conditions on the incorporation of B and the acidity in B-MCM-41 materials
(Elsevier Science, 2016-06)
B-MCM-41 type nano-structured materials were prepared by direct hydrothermal synthesis. The time of hydrothermal treatment, the Si/B initial molar ratio and the nature of the hydroxide source in the synthesis process were ...
Eco-friendly synthesis of nanostructured mesoporous materials from natural source rice husk silica for environmental applications
(Springer Heidelberg, 2020-10-09)
Nanostructured mesoporous materials of MCM-41 type were synthesized using a natural, non-toxic, and cheap source of silica from rice husk. Then, this pure silica was modified with several Fe loadings by a wet impregnation ...
Desenvolvimento e aplicação do software HERisk para avaliação espaço-temporal de riscos: estudo de caso do rio Monjolinho e suas águas tratadas com membranas de matriz mistas
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Química - PPGQCâmpus São Carlos, 2023-03-27)
This project proposes to develop new software for the spatio-temporal assessment of radiological, ecological, and human health risks, in addition to new mixed matrix membranes (MMMs) based on polyethersulfone (PES) and ...
Precursores LaNiO3/La2NiO4 suportados em MCM-41 para obtenção de hidrogênio a partir da reforma a seco do metano.
(Universidade Federal do Rio Grande do NorteBrasilUFRNQuímica do Petróleo, 2017)
The effect of mesoporosity in the reaction of vinyl acetate and isoamyl alcohol catalyzed by H-ZSM-5 zeolites based on natural Perlite
(Elsevier Science, 2020-07-25)
Diverse ZSM-5 zeolites having a dual porosity and different acidic properties have been prepared using natural Perlite as source of SiO2 and Al2O3. Two traditional methodologies were selected to generate hierarchical ...