Graphite system

The 02-graphite system has been studied by means of quite a few techniques LEED, RHEED, EELS, and NEXAFS (see Ref. 101). It was concluded,... 

Aluminium fluoride (anhydrous) [7784-18-4] M 84.0, m 250°. Technical material may contain up to 15% alumina, with minor impurities such as aluminium sulfate, cryolite, silica and iron oxide. Reagent grade AIF3 (hydrated) contains only traces of impurities but its water content is very variable (may be up to 40%). It can be dried by calcining at 600-800° in a stream of dry air (some hydrolysis occurs), followed by vacuum distn at low pressure in a graphite system, heated to approximately 925° (condenser at 900°) [Henry and Dreisbach J Am Chem Soc 81 5274 1959]. 

For the aq.KOH-graphite system, the van der Waals interaction should be repulsive, because Lifshitz theory predicts a negative Hamaker constant A, which we calculated to be approximately -7.7 X 10 ° J. Using this value, the fit gives ... 

For aq.KOH on mica, the dependence of the effective contact angle on droplet height is mnch weaker than that for the aq.KOH-graphite system. The estimated Hamaker constant of the van der Waals interaction for this system is -1.9 X 10 ° J (repnlsive), and the fitting gives ... 

In this case, the hydrophobic interaction is very weak compared to that of aq.KOH-graphite system. In spite of this, it still dominates the disjoining pressure. 

G. Majer, E. Stanik, S. Orimo, NMR studies of hydrogen motion in nanostructured hydrogen-graphite systems. J. Alloys Compd., 356-357 (2003) 617-621. 

Baskaran, S., and Halloran, J.W. (1993), Fibrous monolithic ceramics II, Flexural strength and fracture behavior of the silicon carbide/graphite system , J. Am. Ceram. Soc., 76(9) 2217-2224. 

Electrooxidation of (—)-a/p/ -phellandrene in aTHF/H20(15/l)—H2S04/NaC104-(graphite) system can lead to (-t-)-trans-yabunikkeol, l(7),2-p-menthadiene-6-ol, in 40% yield 63b). 

Zheng, Y. and T. Ando. 2002. Hall conductivity of a two-dimensional graphite system. Phys. Rev. B65 245420-1-11. 

Avdeev, V. V., V. A. Nalimova, and K. N. Semenenko. 1990. Sodium-graphite system at high pressures. 

Xie, R.C. and Qu, B.J. 2001. Expandable graphite systems for halogen-free flame-retarding of polyolefins. I. Flammability characterization and synergistic effect. Journal of Applied Polymer Science 80(8) 1181—1189. 

The bibliography is presented in the form of two Tables. Table 1 references the papers by the material system under study Table 2 references the papers by the application involved and/or by the type of data presented. As is evident in Table 1, most of the literature involves epoxies, and most of the applications to composites are either for epoxy-glass or epoxy-graphite systems. 

The molecular-level stmcture of the electrode/electrolyte interface was studied using two- and three- phase systems, including membrane/vapor, membrane/vapor/catalyst and membraneAfapor/ graphite systems. The simulations of a membraneAfapor interface show a region of dehydration near the interface. The interfacial thickness measured from the water density profile was found to decrease in width with increasing humidity. Hydronium ions displayed a preferential orientation at the interface, with the oxygen exposed to the vapor phase. 

A simulation study has been reported for methane at room temperature in parallel-walled slit pores with interaction potentials given by an equation of the form of equation (16) with parameters suitable for the methane graphite system. 

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