catalysis

(redirected from Catalytic activity)
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Synonyms for catalysis

acceleration of a chemical reaction induced the presence of material that is chemically unchanged at the end of the reaction

References in periodicals archive ?
Catalytic activity of anti-thyroglobulin antibodies.
The preparation of zinc oxide nanocatalyst using a green chemistry route as a catalyst (spinach extract) and also the catalytic activity evaluation of the prepared samples was studied.
Namely, the introduction of [Ba sup.2+] deficiency will create more oxygen vacancy in the lattice (like the case of ([Ba sub.0.5][Sr sub.0.5])sub.1-x] [Co.sub.0.8][Fe.sub.0.2][O.sub.3-[delta]] [22], Pr[Ba sub.l-x][Fe sub.2] [O.sub.5+[delta] [23], and [La sub.0.6][Sr.sub.0.4-x] [Co.sub.0.2][Fe.sub.0.8][O.sub.3-[delta] [16]) which is helpful to form the low-coordinated activity of Fe/Co cations which facilitates the adsorption of [H sub.2]O and O[H sup.-], and is expected to be beneficial to promote the catalytic activity for HER.
The zeolite USY is widely used as a catalyst support and plays an important role in the catalysts used in the hydrocracking process because they enhance catalytic activity, selectivity, or stability imparting shape selectivity [5].
In order to study the effect of support on the catalytic activity of HPAs-based acid catalyst for the esterification reactions, various acid catalysts are prepared by using different supports.
improved the catalytic activity of [alpha]-[Fe.sub.2][O.sub.3] in the decomposition of AP by coating amorphous carbon on [alpha]-[Fe.sub.2][O.sub.3] surface, which reduced the high decomposition temperature of AP by 109[degrees]C [27].
Table 3 summarizes the results of catalytic activity in term of yields for the obtained reaction products at different reaction conditions.
The catalytic activity per unit area of the Pt (i.e., the specific activity (SA)) was obtained by a rotating disk electrode (RDE) using a catalyst powder [14]-[16].
Some specific topics include hexagonal ferrite fibers and nanofibers, nonferrites of transition metals and their catalytic activity, and biomedical applications of super-paramagnetic nanoparticles with Spinel structure.
University of Lausanne associate professor, Margot Thome-Miazza, said, 'We have previously identified a novel way of regulating the catalytic activity of MALT1 via a protein modification called ubiquitination.
In addition, the GQDs possessed an intrinsic peroxidase-like catalytic activity that was similar to the graphene sheets and carbon nanotubes.
His research indicates that catalytic activity is strongly affected by the electronic structure of clusters, their geometry on a support material, and the interaction between the cluster and the material.
The catalytic activity of the immobilized enzyme was determined by mixing 1 g of catalytic P(AN-co-MMA) nanoparticles with 50 mL of 100 mM lactose in phosphatecitrate solution of pH 4.4 at 40[degrees]C with stirring, 250 rpm, for 30 minutes.
"The iron species interacts with the platinum to enhance catalytic activity," says Zhang.