Buscar
Mostrando ítems 1-10 de 1063
Síntese, caracterização e aplicação do MCM-41 e A1-MCM-41 na pirólise do resíduo atmosférico de petróleo
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em QuímicaFísico-Química; Química, 2009-02-19)
In present work, mesoporous materials of the M41S family were synthesized, which were discovered in the early 90s by researchers from Mobil Oil Corporation, thus allowing new perspectives in the field of catalysis. One of ...
Cyclooctene epoxidation using Nb-MCM-41 and Ti-MCM-41 synthesized at room temperature
(Elsevier Science BvAmsterdamHolanda, 2004)
Study of the effect of the base, the silica and the niobium sources on the [Nb]-MCM-41 synthesized at room temperature
(Elsevier Science BvAmsterdamHolanda, 2008)
MCM-41-based composite with enhanced stability for Cr(VI) removal from aqueous media
(Elsevier Science, 2020-05)
Two mesoporous ordered silica with MCM-41 pores arrangement were synthesized and surface modified by a post-synthetic treatment. The first composite has aminopropyl functionalities while the other features aminopropyl and ...
Vanadium(V)-doped MCM-41 synthesised by a novel one-step procedure
(Springer, 2002-12)
A novel procedure to synthesise V-doped surfactant-templated mesoporous materials in one step using a V(V) complex is described. The resulting V(V)-MCM-41 material had a bimodal pore size distribution.
Preparation of different basic Si-MCM-41 catalysts and application in the Knoevenagel and Claisen-Schmidt condensation reactions
(Academic Press Inc. Elsevier B.V., 2010-05-04)
In the present work, the basicity of three different Si-MCM-41 mesoporous materials, namely, (1) as-synthesized Si-MCM-41, (2) Si-MCM-41 modified by dispersing cesium oxide (Cs(2)O) and (3) Si-MCM-41 with anchored ...
Preparation of different basic Si-MCM-41 catalysts and application in the Knoevenagel and Claisen-Schmidt condensation reactions
(Academic Press Inc. Elsevier B.V., 2010-05-04)
In the present work, the basicity of three different Si-MCM-41 mesoporous materials, namely, (1) as-synthesized Si-MCM-41, (2) Si-MCM-41 modified by dispersing cesium oxide (Cs(2)O) and (3) Si-MCM-41 with anchored ...
Síntese da sílica MCM-41 usando um surfactante catiônico polimerizável e avaliação na transesterificação catalítica
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQ, 2014-02-20)
The masters work presented is result of a great effort provided by the group, which has worked with changes in the synthesis of CTA-MCM-41. The synthesis of the M41S family (composed of mesoporous silica MCM-41, MCM-48 and ...