e-journal
Structure, surface morphology and electrochemical properties of brominated activated carbons
A B S T R A C T
A study of the incorporation of bromine in activated carbons showed that highly reactive
bromine facilitated a charge transfer reaction with the host carbon leading to lateral structural
disordering, formation of polybromide compounds, reduction of BET surface area by
preferential micropore filling and a net increase (over 100%) in the gravimetric and volumetric
electrochemical capacity of activated carbons. The effect of chemical bromination
was investigated focusing on various physical and electrochemical properties. Bromination
is compared and contrasted with iodation to generalize halidation as a possible route to
improve activated carbons for electrochemical energy storage.
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