Article citationsMore>>
J. S. Beck, J. C. Vartuli, W. J. Roth, M. E. Leonowicz, C. T. Kresge, K. D. Schmitt, C. T. W. Chu, D. H. Olson, E. W. Sheppard, S. B. McCullen, J. B. Higgins and J. L. Schlenker, “A New Family of Mesoporous Molecular Sieves Prepared with Liquid Crystal Templates,” Journal of American Chemical Society, Vol. 114, No. 27, 1992, pp. 10834-10843. doi:10.1021/ja00053a020
has been cited by the following article:
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TITLE:
Catalytic Reduction of Benzaldehyde Under Hydrogen Flow over Nickel-Containing Mesoporous Silica Catalysts
AUTHORS:
Adel Saadi, Kahina Lanasri, Khaldoun Bachari, Djamila Halliche, Chérifa Rabia
KEYWORDS:
Nickel; HMS; Benzaldehyde; Reduction; Mesoporous Materials
JOURNAL NAME:
Open Journal of Physical Chemistry,
Vol.2 No.1,
February
28,
2012
ABSTRACT: The hydrogenation of benzaldehyde over a series of nickel-containing mesoporous silicas with different nickel contents was studied at atmospheric pressure in the range temperature of 393 - 513 K under H2 ?ow. These materials (noted Nin-HMS with n = Si/Ni = 50, 25, 15) have been prepared at room temperature using a route based on hydrogen bonding and self-assembly between neutral primary amine micelles (S0) and neutral inorganic precursors (I0). They were characterized by their chemical analysis, BET surface area, XRD, FT-IR, and SEM microscopy. The obtained products were benzylalcohol, toluene, benzene with yields depending on the nickel content (Si/Ni ratio) and reaction temperature. The products of benzaldehyde hydrogenation (benzylalcohol, and toluene) and hydrogenolysis (benzene) were preferentially formed at low/middle and high reaction temperature respectively. The mesoporous Ni-containing materials were very active hydrogenation catalysts with almost 90% selectivity to benzylalcohol product and showed excellent stability. A mechanism in which the reaction could be initiated by a benzaldehyde reduction over Nin-HMS materials under hydrogen flow with formation of reaction products is proposed.