Results 271 to 280 of about 404,078 (317)

Model Catalysts: Simulating the Complexities of Heterogeneous Catalysts

Annual Review of Physical Chemistry, 2012
Surface-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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User as catalyst

OCLC Systems & Services: International digital library perspectives, 2004
User interface (UI) development is a complex process that involves the cooperation and input from both the developer and the user population. It is also an iterative process that requires continuous feedback and possibly peer review. Usability is a primary concern for user interface development, and there are several methods that can be used to test ...
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Metallodendrimers as Transphosphorylation Catalysts

Journal of the American Chemical Society, 2007
The 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, MANEA, FLAVIO, FIAMMENGO R, PRINS, LEONARD JAN, PASQUATO L, SCRIMIN, PAOLO MARIA   +5 more
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Design of Catalysts and Catalyst Libraries

2000
Combinatorial 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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Heterogeneous Enantioselective Catalysts: Strategies for the Immobilization of Homogeneous Catalysts

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Paul, McMorn, Graham J, Hutchings
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Becoming a Swarm Catalyst

International Journal of Knowledge-Based Organizations, 2013
This article analyzes the problems of bringing in social media in a traditional, hierarchical organization. Difficulties rise from the contradiction between the bureaucratic approach of an organization and the collaborative community approach connected to social media. A change in the role of a developer is analyzed through a case study.
Juhana Kokkonen, Sami Paavola, Yrjö Engeström   +2 more
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Homogeneous catalysts to solid catalysts

Current Opinion in Solid State and Materials Science, 1996
Abstract 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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The utilisation of wool as a catalyst and as a support for catalysts

Applied Catalysis A: General, 2017
Abstract Textiles are an emerging class of support material for catalysts, and are available in many different structures at a modest cost from a well-established industry. This review discusses 87 studies of wool and reconstituted wool as catalysts, and supports for catalysts, along with informative complementary studies.
Steven J. McNeil, Matthew R. Sunderland, Samuel J. Leighs   +2 more
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Catalyst Supports and Small Particle Catalysts

1998
Many of the useful properties of catalysts arise from reactions between the solid surfaces of the catalysts and various gaseous reactants. Catalysts of large specific surface areas are often desired and they can be obtained by the use of porous bodies.
Jan-Erik Otterstedt, Dale A. Brandreth
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Are Heterogeneous Catalysts Precursors to Homogeneous Catalysts?

Journal of the American Chemical Society, 2001
I W, Davies, L, Matty, D L, Hughes, P J, Reider   +3 more
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