IFEG   20353
INSTITUTO DE FISICA ENRIQUE GAVIOLA
Unidad Ejecutora - UE
artículos
Título:
Influence of the Synthesis Time in the Textural and Structural Properties of Ni-Containing Mesoporous Materials
Autor/es:
PAOLA M. CARRARO; GRISELDA EIMER; MARCOS OLIVA
Revista:
Procedia Materials Science
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2015 vol. 8 p. 561 - 566
ISSN:
2211-8128
Resumen:
MCM-41 materials have been synthesized by hydrothermal synthesis, and the influence of the synthesis time variation on thestructural and textural properties of the final solids was studied. Nickel-modified samples were synthesized with a molar ratioSi/Ni of 60 and increased days of synthesis from 0 to 7 days. The structures obtained were characterized by X-ray diffraction(XRD) and UV-vis diffuse reflectance (UV?Vis DRS) spectroscopy.XRD patterns of samples are typical of MCM-41 structure, which improves with increasing the time of hydrothermal treatment.XRD and UV?vis studies revealed that the short synthesis times do not allow the proper incorporation of nickel in the structure.It was corroborated that, the synthesis time has an important influence on the properties of mesoporous material modified withNi.