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← ScienceWhich outcome occurs when graphene sheet edges are functionalized with electron-withdrawing groups?
A)Band gap opening near the edges✓
B)Increased carrier mobility across sheet
C)Enhanced thermal conductivity overall
D)Decreased resistance to oxidation
💡 Explanation
When electron-withdrawing groups are added, they induce charge polarization near the edges, which breaks the symmetry of graphene's lattice structure and results in a band gap opening. Therefore, band gap opening occurs, rather than increased mobility, thermal conductivity or oxidation resistance which require doping or passivation.
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