catalytic activity


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catalytic activity

[¦kad·əl¦id·ik ak′tiv·əd·ē]
(chemical engineering)
The ratio of the space velocity of a catalyst being tested, to the space velocity required for a standard catalyst to give the same conversion as the catalyst under test.
References in periodicals archive ?
The effect of variation the EDA concentration on the retained catalytic activity of immobilized enzyme molecules was shown in Figure 1.
Thus, the surface concentration of methoxonium ion, and therefore the catalytic activity for ring alkylation would depend on the density and strength of the Bronsted acid sites.
The catalytic activity of the bio-recognizing compound in a bio-sensing system determines the system's sensitivity.
2009) Catalytic activity of new binuclear titanium chloride bis(phenoxyimine) complexes in ethylene polymerization.
Samples of the hydrotreated oils were taken more than 2 h after changing the reaction conditions to confirm the constant catalytic activity.
IFCC primary reference procedures for the measurement of catalytic activity concentrations of enzymes at 37[degrees]C.
Increasing the surface area of the catalyst by reducing particle size is an effective way of improving catalytic activity.
2] by metal oxides impregnated ACF increased suggesting that increase of catalytic activity is predominantly due to metal oxides.
The discovery sets a new bar for catalytic activity in fuel cells and makes it feasible to meet US Department of Energy targets for platinum-specific power densities without a loss in cell voltage, the researchers said.
Nevertheless, AChE itself may be involved in these effects through mechanisms unrelated to its catalytic activity and therefore separable from "cholinergic" effects.
For example, by using organic molecules containing two extra metal ions, Mirkin created particles that could have catalytic activity.