Oxygen reservoir

Fig. 16-10 A schematic representation of how the oxygen reduction and production rate, dnojdt combine to determine the size of the global oxygen reservoir. (Adapted from Holland, 1978.)...

Yin Q, Jacobsen SB, Yamashita K, Blichert-Toft J, Telouk P, Albarede F (2002) A short time scale for terrestrial planet formation from the Hf-W chronometry of meteorites. Nature 418 949-951 Young ED, Russell SS (1998) Oxygen reservoirs in the early solar nebula inferred from an Allende CAL Science 282 452-455... 

Rothenberg, G., De Graaf, E.A. and Bliek, A. (2003) Solvent-free synthesis of rechargeable solid oxygen reservoirs for... 

Subunit III has no bound metal ions. Although it is the second-heaviest subunit, relatively little is known about its function. Its genetic deletion causes misassembly of the enzyme, while biochemical deletion decelerates proton transfer via the D-pathway (see below) in subunit I, and the subunit Ill-depleted enzyme becomes spontaneously inactivated after a number of turnovers, which is linked to loss of the Cub center. A role of subunit III as an oxygen reservoir has also been proposed. ... 

Differences between the bulk compositions of chondrites, planets and asteroids can be attributed to accretion from different batches of CAIs, chondrules and other components, which are spread along variation lines on the standard three-isotope plot. The preservation of oxygen isotopic anomalies shows that there were numerous oxygen reservoirs for the manufacture of chondrules and CAIs that were quite separate. 

Young E. D. and Russell S. S. (1998) Oxygen reservoirs in the early solar nebula inferred from an Allende CAL Science 282, 452-455. 

Hot fluids readily dissolve and transport material, both in hydrothermal systems (see Chapter 3.15) and in deeper metamorphic environments (see Chapter 3.06). If such fluids are isotopically distinct, then stable isotopes can help define fluid-rock reactions. Isotopic processes at deeper levels are likely to be rather subtle, because temperatures are high, timescales are long, and different oxygen reservoirs may not be very distinct isotopically. Therefore, isotopic studies of contact metamorphism provide some of the best examples of the mechanisms by which fluids and rocks interact and exchange oxygen. 

The oil phase serves as an oxygen reservoir for the micro-organisms in the water phase. 

On the other hand, cerium has been shown to be an effective oxygen reservoir, enhancing the activity of many oxidation catalysts. Due to this property, cerium oxide is also considered to potentially enhance the thioresistance of the catatysts. This aspect is of great practical importance, since the use of palladium catalysts is hindered by the poisonous effect of sulphur compoimds, often present in off gases. Most works dealing with ceria-zirconia catalysts have been carried out with catalysts prepared by coprecipitation methods, whereas in this work an ahemative procedure, based on the incipient wetness technique is used to incorporate ceria to the zirconia support. The aim is to maintain the advantages of zirconia supports, especially the thermal stability. 

These data together with visual observations of the reservoir and SEM examinations of the sintered Pt lead to a description of the cesium-loaded Pt pellet as a "dynamic equilibrium cesium oxygen reservoir" (acronym DECOR) capable of generating pressures of Cs and oxygen-bearing... 

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