Hydrogen adsorption of nickel-silica materials: Role of the SBA-15 porosity

In this work, SBA-15 support was impregnated with nickel in order to study the influence of different factors (metal content, support, method of preparation) on their hydrogen storage capacity. H2 adsorption was measured at low and high pressures (up to 10 and 40 bar) at 77 and 293 K, evaluating the influence of metallic nickel on such adsorption capacity. The properties of the prepared materials were studied by N2 adsorption-desorption, XRD, TPR, UV–Vis, TEM, SEM and XPS techniques. The results indicated the importance of the nickel dispersion on the support to improve hydrogen storage. Thus, Ni/SBA-15 (2.5) sample, in contrast to Ni/SBA-15 (2.5)-R, shows the higher hydrogen adsorption capacity at both 77 K and 293 K.

Palabras clave: Hydrogen Adsorption , Nickel , Sba-15 , Ni/Sio2

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Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)

Identificadores

URI: http://hdl.handle.net/11336/31969

DOI: http://dx.doi.org/10.1016/j.micromeso.2017.03.057

URL: http://www.sciencedirect.com/science/article/pii/S1387181117302366

Colecciones

Articulos(CITEQ)
Articulos de CENTRO DE INVESTIGACION Y TECNOLOGIA QUIMICA

Articulos(INFAP)
Articulos de INST. DE FISICA APLICADA "DR. JORGE ANDRES ZGRABLICH"

Citación

Eimer, Griselda Alejandra; Oliva, Marcos Iván; Sapag, K.; Chanquia, Corina Mercedes; Garcia Blanco, Andres Alberto; Carraro, Paola María; et al.; Hydrogen adsorption of nickel-silica materials: Role of the SBA-15 porosity; Elsevier Science; Microporous and Mesoporous Materials; 248; 8-2017; 62-71

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