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← ScienceWhich mechanism reduces the tensile strength of graphene under prolonged oxidation?
A)Vacancy nucleation at oxidation sites✓
B)Increased sp3 hybridization of carbons
C)Formation of graphitic oxide layers
D)Intercalation by hydroxyl functional groups
💡 Explanation
Vacancy nucleation occurs at oxidation sites, because weakened C-C bonds break under stress, aggregating into vacancies therefore reducing tensile strength, rather than altering carbon hybridization. This creates holes rather than preventing failure.
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