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The electrochemical behavior of graphite electrode has been investigated in 1 M LiClO 4 -ethylene carbonate (EC)/diethyl carbonate (DEC) and fluoroester-mixed (4.8 vol %) EC/DEC solutions at low temperatures to evaluate the effect of addition of fluoroesters on the electrochemical characteristics. The cyclic voltammetry study revealed that the fluoroesters used were electrochemically reduced...
The effect of surface modification of carbon materials on their electrochemical behavior has been studied. Fluorination, ozonization and air-oxidation of carbon surfaces increased the charge-discharge capacities. The change in the d-spacings of carbon materials due to surface modification was negligibly small. XPS measurements indicated that surface oxygen contents slightly increased not only in...
Electrochemical reductions of fluorinated fullerenes with compositions between C 60 F 15 and C 60 F 47 were investigated by potential sweep and constant current discharge in 1 M LiClO 4 propylene carbonate solution. The first reduction peak decreased from 3.28 V to 3.04 V with decreasing fluorine content of fluorinated fullerenes from C ...
Highly fluorinated graphite has been prepared in anhydrous liquid hydrogen fluoride containing a Lewis acid. The products were stage 1, C 2.4 F C 20 F witha -axis lattice parameters, a o = 0.2470 0.2473nm. It was found that MoF 6 is more effective than SbF 5 as an oxidizer of graphite and the relatively low temperatures such as 8...
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