Kinetics of CO oxidation on a palladium-containing catalyst

Орлик, С. Н.; Koval, G. L.; Фесенко, А. В.; Korneichuk, G. P.; Yablonskii, G. S.

doi:10.1007/bf00524911

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“…As a consequence, a hysteresis loop is created, where the ascending and the descending branches of the conversion (%) vs. temperature plot do not coincide. Hysteresis can also be explained based on the existence of several steady states in a catalytic systems, where, during a gradual temperature change, one steady state is replaced by another state with different kinetic features, reacting to proceed at a different rate for constant reactor temperatures [63][64][65]. The hysteresis behavior of CO oxidation over Pd/SiO 2 and (Pd + Cr 2 O 3 )/Al 2 O 3 catalysts has been studied experimentally and explained based on the existence of different steady states during reaction [65].…”

Section: Origin Of Hysteresis Phenomenon In Low-temperature Co Oxidationmentioning

confidence: 99%

“…Hysteresis can also be explained based on the existence of several steady states in a catalytic systems, where, during a gradual temperature change, one steady state is replaced by another state with different kinetic features, reacting to proceed at a different rate for constant reactor temperatures [63][64][65]. The hysteresis behavior of CO oxidation over Pd/SiO 2 and (Pd + Cr 2 O 3 )/Al 2 O 3 catalysts has been studied experimentally and explained based on the existence of different steady states during reaction [65]. Recent CO oxidation studies during heating followed by cooling cycles have shown hysteresis behavior, with higher conversions during extinction [5,49,52,56,[66][67][68][69][70][71][72][73].…”

Section: Origin Of Hysteresis Phenomenon In Low-temperature Co Oxidationmentioning

confidence: 99%

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Critical Review of Low-Temperature CO Oxidation and Hysteresis Phenomenon on Heterogeneous Catalysts

2018

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There is a growing demand for new heterogeneous catalysts for cost-effective catalysis. Currently, the hysteresis phenomenon during low-temperature CO oxidation is an important topic in heterogeneous catalysis. Hysteresis provides important information about fluctuating reaction conditions that affect the regeneration of active sites and indicate the restoration of catalyst activity. Understanding its dynamic behavior, such as hysteresis and self-sustained kinetic oscillations, during CO oxidation, is crucial for the development of cost-effective, stable and long-lasting catalysts. Hysteresis during CO oxidation has a direct influence on many industrial processes and its understanding can be beneficial to a broad range of applications, including long-life CO2 lasers, gas masks, catalytic converters, sensors, indoor air quality, etc. This review considers the most recent reported advancements in the field of hysteresis behavior during CO oxidation which shed light on the origin of this phenomenon and the parameters that influence the type, shape, and width of the conversion of the hysteresis curves.

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Section: Origin Of Hysteresis Phenomenon In Low-temperature Co Oxidationmentioning

confidence: 99%

Section: Origin Of Hysteresis Phenomenon In Low-temperature Co Oxidationmentioning

confidence: 99%

Critical Review of Low-Temperature CO Oxidation and Hysteresis Phenomenon on Heterogeneous Catalysts

2018

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Kinetics of CO oxidation on a palladium-containing catalyst

Cited by 1 publication

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Critical Review of Low-Temperature CO Oxidation and Hysteresis Phenomenon on Heterogeneous Catalysts

Critical Review of Low-Temperature CO Oxidation and Hysteresis Phenomenon on Heterogeneous Catalysts

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