L.E. Noreña

TL;DR: In this paper, the synthesis and surface characterization of a Zr-modified mesoporous MCM-41 solid with an ordered hexagonal arrangement, prepared through a templated synthesis route, using cetyltrimethylammonium chloride as the template.

TL;DR: In this article, a nanophase of mesoporous ceria-zirconia solid solution containing cationic defects in the crystalline structure was obtained, and a surfactant-controlled synthetic method was used to obtain a mesopore ceria solvization.

TL;DR: In this article, the Zr-modified Si-MCM-41 mesoporous materials (WSZ n, n =Si/Zr=25, 15, 8, 4) were synthesized through a surfactant-templated preparation approach, using low-cost fumed silica as the Si precursor.

TL;DR: Two surfactant-templated synthetic routes are developed for the preparation of new types of mesoporous molecular sieves, Zr-MCM-41 and Zr MCM-48, using different Si sources but keeping the same zirconium precursor.

TL;DR: The influence of the Si/Zr molar ratio on the crystalline structure, textural properties, morphological features and surface acidity of Zr-MCM-41 mesoporous molecular sieves was investigated by X-ray diffraction (XRD), N 2 adsorption-desorption isotherms, 29 Si MAS NMR, TEM and FTIR spectroscopy of pyridine adhesorption techniques as mentioned in this paper.