A.M. Saib | Researchain

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Featured researches published by A.M. Saib.

Catalysis Science & Technology | 2011

Studying Fischer–Tropsch catalysts using transmission electron microscopy and model systems of nanoparticles on planar supports

P.C. Thüne; C.J. Weststrate; P. Moodley; A.M. Saib; J. van de Loosdrecht; Jeffrey T. Miller; J.W. Niemantsverdriet

Nanoparticle model systems on planar supports form a versatile platform for studying morphological and compositional changes of catalysts due to exposure to realistic reaction conditions. We review examples from our work on iron and cobalt catalysts, which can undergo significant rearrangement in the reactive environment of the Fischer–Tropsch synthesis. The use of specially designed, silicon based supports with thin film SiO2 enables the application of transmission electron microscopy, which has furnished important insight into e.g. the mechanisms of catalyst regeneration.

Catalysis Today | 2010

Fundamental understanding of deactivation and regeneration of cobalt Fischer-Tropsch synthesis catalysts

A.M. Saib; D.J. Moodley; I.M. Ciobîcă; M.M. Hauman; B.H. Sigwebela; C.J. Weststrate; J.W. Niemantsverdriet; J. van de Loosdrecht

Catalysis Today | 2007

Cobalt Fischer-Tropsch synthesis: Deactivation by oxidation?

J. van de Loosdrecht; B.S. Balzhinimaev; Jean-Alain Dalmon; J.W. Niemantsverdriet; S.V. Tsybulya; A.M. Saib; P.J. van Berge; Jacobus Lucas Visagie

Applied Catalysis A-general | 2009

Carbon deposition as a deactivation mechanism of cobalt-based Fischer–Tropsch synthesis catalysts under realistic conditions

D.J. Moodley; J. van de Loosdrecht; A.M. Saib; M.J. Overett; Abhaya K. Datye; J.W. Niemantsverdriet

Applied Catalysis A-general | 2006

XANES study of the susceptibility of nano-sized cobalt crystallites to oxidation during realistic Fischer-Tropsch synthesis

A.M. Saib; A. Borgna; J. van de Loosdrecht; P.J. van Berge; J.W. Niemantsverdriet

Journal of Catalysis | 2006

Preparation and characterisation of spherical Co/SiO2 model catalysts with well-defined nano-sized cobalt crystallites and a comparison of their stability against oxidation with water

A.M. Saib; A. Borgna; J. van de Loosdrecht; P.J. van Berge; J.W. Geus; J.W. Niemantsverdriet

Journal of Physical Chemistry B | 2006

In situ surface oxidation study of a planar Co/SiO2/Si(100) model catalyst with nanosized cobalt crystallites under model fischer-tropsch synthesis conditions

A.M. Saib; A. Borgna; J. van de Loosdrecht; P.J. van Berge; J.W. Niemantsverdriet

Reference Module in Chemistry, Molecular Sciences and Chemical Engineering#R##N#Comprehensive Inorganic Chemistry II (Second Edition)#R##N#From Elements to Applications | 2013

Fischer-Tropsch synthesis : catalysts and chemistry

J. van de Loosdrecht; F.G. Botes; I.M. Ciobica; A. Ferreira; Philip Gibson; D.J. Moodley; A.M. Saib; Jacobus Lucas Visagie; C.J. Weststrate; J.W. Niemantsverdriet

Catalysis Today | 2011