L. Campanella , A. Di Corcia , R. Samperi , A. Gambacorta
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The nature of surface chemical heterogeneities of graphitized carbon black
Experimental evidence is presented for the existence of quinone, aromatic ether, carboxylic acid and phenol groups on the surface of a graphitized carbon black (GCB), that is P-33 (2700°C). This evidence has been achieved by using polarographic analysis of a slurry of GCB particles.
Polarographic analysis has been also performed for ungraphitized P-33.
By comparison, it appears that the heating at 2700°C does not remarkably change the nature and the amount of chemical groups chemically bound to the surface of the carbon black.
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