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Electrochemical generation of narrow conduction electron spin resonance signals in carbon blacks

✍ Scribed by J.R. Harbour; M.J. Walzak


Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
323 KB
Volume
24
Category
Article
ISSN
0008-6223

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✦ Synopsis


Electrochemical reduction of either of two different carbon blacks dispersed in methylene chloride gave rise to a temperature independent narrow ESR signal superimposed upon the characteristic broad signal. The observation of this conduction ESR (CESR) signal implies that there are two distinct environments available for charge carriers within the carbon black particles. With the oxidized black. an additional ESR spectrum (g = 2.0034) revealing hyperfine interaction was observed. This was associated with surface oxidized molecules which had been electrochemically reduced and reside in solution as radical anions.


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