Ordered mesoporous materials as catalyst supports

Preparation of nickel-mesoporous materials and their application to the hydrodechlorination of chlorinated organic compounds

“…Several methods have been proposed for the dispersion of Ni species onto mesoporous silicas [7,13,70,76,77]. Typical methods include the ion exchange with Ni ions and the direct incorporation of Ni 2+ during the synthesis of the support using a sol-gel method [77].…”

Mesoporous catalysts, supports and catalytic membranes based on MCM-41. Final report for the period January 15,2000 - January 14, 2001

“…The first concept, bifunctional reforming activity analogous to Pt supported on acidic alumina, Pt/Al,O,-Cl, was the topic of a recent Ph.D. thesis from our laboratory [22]. Junges et al [41] investigated several metals, preparation routes, and modifications of MCM-41 and, in particular, attributed improved selective hydrogenation of crotonaldehyde to crotylalcohol on Pt/Ti-MCIM-41, relatiave to pure siliceous supports, to the SMSI (strong metal-support interaction) effect.…”

Synthesis, characterization and catalytic activity of highly ordered hexagonal and cubic composite monoliths

“…Among all possible metals functionalized mesostructures, nickel is inexpensive and well-dispersed into the solid supports. Considerable attention has been devoted to use the NiO-doped mesoporous materials as effective catalysts in various reactions [19][20][21][22][23]. The increase of the NiO activity might be due to the large surface areas and pore volumes, and uniform porosity at nanometer scale of the mesoporous supports [1][2][3].…”

“…Several methods of the fabrication of nickel oxide supported mesoporous silica materials have been developed in the past decade. Among these techniques, the impregnation, ion exchange, and direct incorporation and deposition of nickel precursors into the ordered mesoporous silica materials are the most common methods used [19][20][21][22][23][24]. However, limitations of using these approaches exist in the range of the amounts of the incorporated catalysts and the sophisticated procedures in terms of intensive, time-consuming and hydrothermal treatments.…”