Encyclopedia

immobilized catalyst

immobilized catalyst

[i¦mō·bə‚līzd ′kad·ə‚list]
(chemistry)
A molecular catalyst that is bound without substantial change in its structure to an insoluble solid to prevent solution of the catalyst in the contacting liquid. Also known as anchored catalyst.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
ferrooxidans LR strain alone as immobilized catalyst.
Bioleaching of Primary Nickel Ore Using Acidithiobacillus ferrooxidans LR Cells Immobilized in Glass Beads
The mesoporous Ti[O.sub.2] of pure anatase phase with sharp pore distribution and large surface area was synthesized to increase the degree of distribution and homogeneity of immobilized catalyst [39, 40].
Titanium dioxide as a catalyst support in heterogeneous catalysis
Immobilized catalyst was then injected and ethylene pressure was increased quickly to and kept at 40 bar.
[Me.sub.2]Si([C.sub.5][Me.sub.4])(N-tBu)Ti[Cl.sub.2] (CGC), (nBuCp)[.sub.2]Zr[Cl.sub.2], and [Me.sub.2]Si([C.sub.5][Me.sub.4])(N-tBu)Ti[Cl.sub.2]/(nBuCp)[.sub.2]Zr[Cl.sub.2] immobilized catalyst systems were successfully prepared on silica.
Immobilized [Me.sub.2]Si([C.sub.5][Me.sub.4])(N-tBu)Ti[Cl.sub.2]/(nBuCp)[.sub.2]Zr[Cl.sub.2] hybrid metallocene catalyst system for the production of poly(ethylene-co-hexene) with pseudo-bimodal molecular weight and inverse comonomer distribution
In an immobilized catalyst surface, which has been tested in this study, adsorption process can be neglected due to low accessible active sites.
Intensification of azo dye removal rate in the presence of immobilized Ti[O.sub.2] nanoparticles and inorganic anions under UV-C irradiation: optimization by response surface methodology
The effect of various operating parameters, such as the immobilized catalyst amount, the initial BPA concentration, the treatment time, the water matrix, the addition of [H.sub.2][O.sub.2], and the presence of other organic substances, on process efficiency, was investigated.
Since Ti[O.sub.2] in slurry has extensively been used for photocatalytic purposes, an extra run was carried out to compare the efficiencies of slurry and immobilized catalysts. Hence, 0.65 mg Ti[O.sub.2] powder was added to the reaction mixture, and complete removal of 100 [micro]g/L BPA could be achieved after 35 min of reaction (data not shown).
Solar photocatalytic degradation of bisphenol A on immobilized ZnO or Ti[O.sub.2]
This is very promising for their potential use as immobilized catalyst in batch or flow reactor [31].
Evaluation of photocatalytic active coatings on sintered glass tubes by methylene blue
Chemists here describe palladium-mediated solid-phase organic synthesis, immobilized catalysts and ligands, and palladium-mediated multifunctional cleavage.
Solid-phase palladium chemistry
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