Results 221 to 230 of about 38,643 (267)

Modular Homogeneous Chromophore–Catalyst Assemblies

Accounts of Chemical Research, 2016
Photosynthetic reaction center (RC) proteins convert incident solar energy to chemical energy through a network of molecular cofactors which have been evolutionarily tuned to couple efficient light-harvesting, directional electron transfer, and long-lived charge separation with secondary reaction sequences. These molecular cofactors are embedded within
Karen L, Mulfort, Lisa M, Utschig
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Polymer Fibers as Carriers for Homogeneous Catalysts

Chemistry – A European Journal, 2007
AbstractThis paper describes a polymer fiber‐based approach for the immobilization of homogeneous catalysts. The goal is to generate products that are free of catalysts which would be of great importance for the development of optoelectronic or pharmaceutical compounds.
Michael, Stasiak, Armido, Studer, Andreas, Greiner, Joachim H, Wendorff   +3 more
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A Chromium Catalyst for the Polymerization of Ethylene as a Homogeneous Model for the Phillips Catalyst

Journal of the American Chemical Society, 2005
A structurally characterized cationic chromium(III) alkyl featuring a bulky nacnac ligand catalyzes the polymerization of ethylene as well as the copolymerization of ethylene with alpha-olefins. This well-characterized homogeneous catalyst constitutes a structural as well as functional model of the widely used heterogeneous Phillips olefin ...
Leonard A, MacAdams, Gerald P, Buffone, Christopher D, Incarvito, Arnold L, Rheingold, Klaus H, Theopold   +4 more
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Homogenizing Metal Oxide Catalysts

Journal of Macromolecular Science: Part A - Chemistry, 1981
Abstract Metal oxide particles have been prepared which are “soluble” in hydrocarbon solvents. The reaction of either a metal (or its metal oxide) with water, mineral spirits, and a mixture of carboxylic acids can result in hydrocarbon-miscible metal oxide core particles of 20-1000A diameter sizes which are coated with a layer of hydrophobic ...
Charles U. Pittman, Edwin H. Lewis, Mohammad Habib   +2 more
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“HETEROGENIZING” HOMOGENEOUS CATALYSTS

Catalysis Reviews, 1974
Abstract For many years, it has been customary to classify catalysts as “homogeneous” or “heterogeneous.” The former commonly operate through the formation of “intermediate compounds,” and the latter, by adsorption of the reactants on the catalyst surface.
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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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Homogeneous and complex catalysts

Nature Synthesis, 2023
Dongshuang Wu, Minna Cao
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Polyoxometalates as Homogeneous Oxidation Catalysts

2012
Anstract
CARRARO, MAURO, SARTOREL, ANDREA, M. Ibrahim, N. Nsouli, C. Jahier, S. Nlate, U. Kortz, BONCHIO, MARCELLA   +7 more
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Decomposition pathways of homogeneous catalysts

Applied Catalysis A: General, 2001
Homogeneous catalysts can decompose in a variety of ways: metal deposition, ligand decomposition, reaction with impurities, dimer formation, and reaction of the metal center with the ligand. Sometimes these side reactions lead to temporary deactivation only and the catalyst activity can be restored. Without attempting to be complete, I have collected a
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Reshaping the Cathodic Catalyst Layer for Anion Exchange Membrane Fuel Cells: From Heterogeneous Catalysis to Homogeneous Catalysis

Angewandte Chemie - International Edition, 2021
Xiaojiang Wang, John R Varcoe, Liang Wu   +2 more
exaly