Mesoporous Molecular Sieves Based Catalysts for Olefin Metathesis and Metathesis Polymerization

2010 ◽  
pp. 101-114 ◽  
Author(s):  
Hynek Balcar ◽  
Jiří Čejka
Keyword(s):  
Molecular Sieves ◽  
Olefin Metathesis ◽  
Mesoporous Molecular Sieves ◽  
Metathesis Polymerization

scholarly journals Ru complexes of Hoveyda–Grubbs type immobilized on lamellar zeolites: activity in olefin metathesis reactions

2015 ◽  
Vol 11 ◽  
pp. 2087-2096 ◽  
Author(s):  
Hynek Balcar ◽  
Naděžda Žilková ◽  
Martin Kubů ◽  
Michal Mazur ◽  
Zdeněk Bastl ◽  
...  
Keyword(s):  
Methyl Oleate ◽  
Molecular Sieves ◽  
Olefin Metathesis ◽  
Mesoporous Molecular Sieves ◽  
Xps Analysis ◽  
Hybrid Catalyst ◽  
Counter Anion ◽  
Ring Closing Metathesis ◽  
Metathesis Reactions ◽  
Ru Complexes

Hoveyda–Grubbs type catalysts with cationic tags on NHC ligands were linker-free immobilized on the surface of lamellar zeolitic supports (MCM-22, MCM-56, MCM-36) and on mesoporous molecular sieves SBA-15. The activity of prepared hybrid catalysts was tested in olefin metathesis reactions: the activity in ring-closing metathesis of citronellene and N,N-diallyltrifluoroacetamide decreased in the order of support MCM-22 ≈ MCM-56 > SBA-15 > MCM-36; the hybrid catalyst based on SBA-15 was found the most active in self-metathesis of methyl oleate. All catalysts were reusable and exhibited low Ru leaching (<1% of Ru content). XPS analysis revealed that during immobilization ion exchange between Hoveyda–Grubbs type catalyst and zeolitic support occurred in the case of Cl− counter anion; in contrast, PF6 − counter anion underwent partial decomposition.

Cytochrome c immobilization into mesoporous molecular sieves

2000 ◽  
Vol 10 (5) ◽  
pp. 453-469 ◽  
Author(s):  
Lisa Washmon-Kriel ◽  
Victoria L Jimenez ◽  
Kenneth J Balkus
Keyword(s):  
Cytochrome C ◽  
Molecular Sieves ◽  
Mesoporous Molecular Sieves

Synthesis and Characterization of V-SBA-1 Cubic Mesoporous Molecular Sieves

2001 ◽  
Vol 13 (1) ◽  
pp. 208-212 ◽  
Author(s):  
Lian-Xin Dai ◽  
Kenji Tabata ◽  
Eiji Suzuki ◽  
Takashi Tatsumi
Keyword(s):  
Molecular Sieves ◽  
Mesoporous Molecular Sieves ◽  
Synthesis And Characterization ◽  
Cubic Mesoporous
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