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Mesoporous Molecular Sieves as Advanced Supports for Olefin Metathesis Catalysts
Authors:Hynek Balcar  Jiří Čejka
Institution:J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Dolejškova 3, 182 23 Prague 8, Czech Republic
Abstract:Summary: Siliceous mesoporous molecular sieves MCM-41, MCM-48 and SBA-15 and organised mesoporous alumina represent progressive supports for new heterogeneous catalysts for olefin metathesis and metathesis polymerization. In combination with Mo and Re oxides they provide catalysts of considerably higher activity in comparison with those based on conventional silica and alumina. Immobilization of Mo and Ru alkylidenes on these materials led to the highly active and selective catalysts with negligible leaching of transition metal.
Keywords:heterogeneous catalysts  mesoporous molecular sieves  olefin metathesis  ring-opening metathesis polymerization  transition metal catalysts
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