Surfaces Grafted with Aryl Groups

Surfaces Grafted with Aryl Groups 1.4.1 Preparation... 

The mechanism allowed for the electrografting is the reduction of the diazonium group resulting in the formation of an aryl radical with N2 release (Figure 10.5). These radicals are then able to graft onto the surface to form a monolayer. It is worth noting that a weak polarization (—0.04 V vs SCF) is required to avoid reduction of the aryl radical into the corresponding anion that would prevent the chemisorption of the aryl radical onto the carbon surface. 

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