Transport in oxides

This almost distance independent hole transfer over (A T)n sequences where adenines are charge carriers is very surprising. Maybe the transfer of a positive charge between adenines of an (A T)n sequence is extremely fast, as recent calculations of M.D. Sevilla predicted [20], One could also speculate that the positive charge is delocalized over more than one A T base pair so that polaron hopping, which is discussed in this volume by G.B. Schuster as well as E.N. Conwell, might make the hole transport in oxidized (A T)n sequences very efficient. 

K. Hosoya, A. Minamizono, K. Katayama, T. Terasaki, and M. Tomi. Vitamin C transport in oxidized form across the rat blood-retinal barrier. Invest. Ophthalmol. Vis. Sci. 45 1232-1239 (2004). 

Kharaka YK, Carothers WW, Rosenbauer RJ (1983) Thermal decarboxylation of acetic acid Implications for origin of natural gas. Geoehim Cosmoehim Acta 47 397-402 Kilner JA (1986) New techniques for studying mass transport in oxides. In Freer R, Dennis PF (eds) Mater SciForam 7 205-222... 

Sender E, Martinelli JR, Zulu RA, Weeks RA (1987) The use of ion beam analysis for measrrring ion transport in oxides. Cryst Latt Def Amorph Mater 15 277-282 Staschewski D (1969) Kinetik des mit Bicarbonat katalysierten Sauerstuff-Austausches zwischen Kohlendioxid und Wasser. Chemie-Ing-Techn 41 1111-1118 Stanton TR (1990) High pressure isotopic studies of the water diffusion mecharusm in sihcate melts and glasses. PhD Dissertation, Arizona State University, Tempe, Arizona Stebbins J (1995) Dynamics and stmcture of silicate and oxide melts Nuclear magnetic resonance studies. In Stebbins J, McMillan P, Dingwell D (eds) Stiucture Dynamics and Properties of Sihcate Melts, Rev Mineral 32... 

Sidebottom, D.L., P.E. Green, and R.K. Brow, Anomalous-dffusion model of ionic transport in oxide glasses. Physical Review B, 1995. 51 p. 2770... 

One of the important issues of semiconductor gas sensors is the understanding of charge transfer reactions at surfaces and interfaces, and of charge transport in oxide semiconductors. Gas adsorption at surfaces of oxide semiconductors may lead to charge transfer reactions and to the change of electrical conductivity in the chemical sensors. This section deals with electrical characteristics, transport mechanism and the layer structure in the metal-semiconductor interface. 

The expansion in the application of both of these techniques to minerals in the last few years has resulted in many publications. The full range of applications is considerable and beyond the scope of this chapter. However, in this chapter we introduce the two techniques and then illustrate the scope of the techniques by giving examples where they have been used to model stmcture, thermodynamics and atom transport in oxides and minerals. Finally, we discuss the modeling of the mineral-fluid interface, which is one of the most challenging areas of active study. 

W. W. Smeltzer, Battelle Colloquium on Defects and Transport in Oxides, Columbus 1973. 

The transport of specific ions is a common function of a biomembrane. It is observed in an active transport of ions through the cell wall, a proton transport in oxidative phosphorylation, a selective transport of K and Na through the protoplasmic membrane, etc. To develop synthetic membrane having such functions is an important objective of polymer chemistry. 

Table 4.1-128 Electronic transport in oxides of Ca, Sr, and Ba, general description...

J.M. Floyd, Oxygen Transport in Oxides of Fluorite Structure Ph.Dc Thesis, University of London, 1969... 

The mechanism of charge carrier transport in oxidized conjugated aromatic polymers is not yet really clear The electrical conduction of oxidized PP films... 

Kahnt H (1991) Ionic transport in oxide glasses and frequency dependence of conductivity. Ber Bunsenges Phys Chem 95 1021... 

The first ceramic oxygen membranes were discovered by Nernst [2] in 1899 in the form of mixrnres of zirconia and rare-earth metal oxides. Basically, oxygen transport in oxide ceramics can be realized in three variants (Fig. 1). Materials... 

Hence using Eqn. 292 (applicable to short time periods) and Eqn. 293 (applicable to long time periods), both Rp and Cp can be obtained from a single current step experiment. This type of analysis has been applied with some success by Martin and coworkers to examine charge transport in oxidized polypyrrole films (see Fig. 3 and Fig. 4 of Reference 165). 

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