Results 311 to 320 of about 1,701,099 (359)
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Science, 1980
Proven catalysts exist in many different forms and with many different kinds of composition. An understanding of how catalysts function is beginning to emerge in a few areas, and some superior catalysts have been developed as a result of this knowledge. Applications of new techniques and disciplines should lead to impressive advances in the years ahead.
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Proven catalysts exist in many different forms and with many different kinds of composition. An understanding of how catalysts function is beginning to emerge in a few areas, and some superior catalysts have been developed as a result of this knowledge. Applications of new techniques and disciplines should lead to impressive advances in the years ahead.
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Model Catalysts: Simulating the Complexities of Heterogeneous Catalysts
Annual Review of Physical Chemistry, 2012Surface-science investigations have contributed significantly to heterogeneous catalysis in the past several decades. Fundamental studies of reactive systems on metal single crystals have aided researchers in understanding the effect of surface structure on catalyst reactivity and selectivity for a number of important reactions. Recently, model systems,
Feng, Gao, D Wayne, Goodman
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Metallodendrimers as Transphosphorylation Catalysts
Journal of the American Chemical Society, 2007The ZnII complexes of triazacyclononane-functionalized DAB dendrimers are powerful catalysts for the cleavage of an RNA model substrate with clear evidence of cooperativity between two metal centers.
MARTIN, MARCO +5 more
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Design of Catalysts and Catalyst Libraries
2000Combinatorial chemistry [1] and high-throughput screening are now reasonably well-validated for drug discovery; we have the ‘proofs of concept’ in terms of accelerated discovery and activity optimization, with compounds, for example from Pharmacopeia’s own programs, now at pre-clinical stages.
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Advances in Science and Technology, 2010
Aerogels are often largely mesoporous solids, with a porosity which may exceed 90 vol% and a specific surface area up to 1000 m2 g-1. Such materials were first obtained by Kistler in 1932, and designate gels in which the liquid was replaced with a gas without collapsing the gel solid network. Contrary to xerogels dried from wet gels by evaporation with
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Aerogels are often largely mesoporous solids, with a porosity which may exceed 90 vol% and a specific surface area up to 1000 m2 g-1. Such materials were first obtained by Kistler in 1932, and designate gels in which the liquid was replaced with a gas without collapsing the gel solid network. Contrary to xerogels dried from wet gels by evaporation with
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Homogeneous catalysts to solid catalysts
Current Opinion in Solid State and Materials Science, 1996Abstract Recent advances have been made in the transformation of homogeneous to solid catalysts. They include the use of metal complexes immobilized on organic and inorganic supports, solid acids and bases, redox molecular sieves as solid catalysts for liquid phase oxidations, zeolite-encapsulated metal complexes and supported liquid phase catalysts.
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Are Heterogeneous Catalysts Precursors to Homogeneous Catalysts?
Journal of the American Chemical Society, 2001I W, Davies +3 more
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Catalyst supports and supported catalysts
Applied Catalysis, 1988M.F.M. Post, P.W. Lednor
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Microkinetic Modeling: A Tool for Rational Catalyst Design
Chemical Reviews, 2021Ali Hussain Motagamwala, James A Dumesic
exaly