El Instituto Politécnico Nacional
Contribuye al desarrollo económico y social de la nación, a través de la formación integral de personas competentes; de la investigación, el desarrollo tecnológico y la innovación. Además tiene reconocimiento internacional por su calidad e impacto social.
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http://repositoriodigital.ipn.mx/handle/123456789/11690Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | Minor-Perez, Esteban | - |
| dc.creator | Mendoza-Serna, Rogelio | - |
| dc.creator | Mendez-Vivar, Jose | - |
| dc.creator | Quintana-Zavala, Delia | - |
| dc.creator | Pless, Reynaldo | - |
| dc.creator | Torres-Robles, Roberto | - |
| dc.date | 2012-03-29T21:00:33Z | - |
| dc.date | 2012-03-29T21:00:33Z | - |
| dc.date | 2006-01-31 | - |
| dc.date.accessioned | 2013-01-16T16:41:30Z | - |
| dc.date.available | 2013-01-16T16:41:30Z | - |
| dc.date.issued | 2013-01-16 | - |
| dc.identifier | J Porous Mater | - |
| dc.identifier | 1573-4854 | - |
| dc.identifier | http://hdl.handle.net/123456789/1213 | - |
| dc.identifier.uri | http://www.repositoriodigital.ipn.mx/handle/123456789/11690 | - |
| dc.description | An experimental strategy was developed to obtain transparent Si-Al-Ti-Ni-Mo and Si-Zr-Ti-Ni-Mo sols via the sol-gel process. The solwas prepared from Si(OEt)4 (TEOS), Al(OBus)3 (OBus: C2H5CH(CH3)O), Ti(OEt)4 (OEt: OCH2CH3), Zr(OPrn)4 (OPrn:OCH2CH2CH3). In both cases nickel nitrate hexahydrate (Ni(NO3)2 · 6H2O) and ammonium heptamolybdate tetrahydrate ((NH4 )6Mo7O24 · 4H2O) were the Ni and Mo sources, respectively. The sols were characterized by Fourier Transform Infrared Spectroscopy (FTIR). Assignments of the simultaneous formation of the Si-O-Al, Si-O-Ti, Si-O-Ni, and Si-O-Zr bonds were done. The sols were polymerized at room temperature (293 K) to obtain gels, and these were dried at 423Kand calcined at 573, 853 and 893K in air. The characterization techniques used were small-angle X-ray scattering (SAXS), X-ray diffraction (XRD), scanning electron microscopy (SEM), and 29Si Present address: Facultad de Estudios Superiores Zaragoza, U.N.A.M., Batalla del 5 de Mayo s/n esq. Fuerte de Loreto, Col. Ej´ercito de Oriente, M´exico D. F., 09230, M´exico E. Minor-P´erez ( ) · D. Quintana-Zavala CICATA-IPN, Unidad Legaria, M´exico, D.F., 11500, Mexico e-mail: mypes6@yahoo.com.mx R. Mendoza-Serna FES-Zaragoza, UNAM, M´exico, D.F., 09230, Mexico J. M´endez-Vivar Universidad Aut´onoma Metropolitana-Iztapalapa, Depto. de Qu´ımica, A.P. 55-534, M´exico, D.F., 09340, Mexico R. C. Pless CICATA-IPN, Unidad Quer´etaro, Qro., 76040, Mexico R. Torres-Robles Instituto Mexicano del Petr´oleo, Programa de Ingenier´ıa Molecular, M´exico D.F., 07730, Mexico and 27Al magic angle spinning nuclear magnetic resonance (MAS NMR). The density of the solidswas measured following ASTM method D-4892 and the porosity and surface area were determined byN2 adsorption/desorption isotherms. The corresponding average pore diameters were evaluated using the BJH, HK, and DA methods. | - |
| dc.description | Instituto Politecnio Nacional, UNAM-DGAPA | - |
| dc.language | en | - |
| dc.publisher | Journal of Porous Materials; Espringer | - |
| dc.relation | ;13, 13-19 | - |
| dc.subject | Sol-gel | - |
| dc.subject | SiO2-Al2O3-TiO2-NiO-MoO3 | - |
| dc.subject | SiO2-ZrO2-TiO2-NiO-MoO3 | - |
| dc.subject | porous materials | - |
| dc.title | Preparation and characterization of multicomponent porous | - |
| dc.type | Article | - |
| Aparece en las colecciones: | Doctorado | |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| J_Porous_Mat_13_2006_13_19.pdf | 289.28 kB | Adobe PDF | Visualizar/Abrir |
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