In MD simulations, graphitic nitrogen barely weakens graphene, a void cuts strength ~23%, and a pyridinic nitrogen cluster—the same vacancy with nitrogen edges—cuts it ~30%, with side-by-side defects interacting over ~80 Å.
Impact of nitrogen atom clusters and void defects on graphene: a molecular dynamics investigation,
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Defect configuration, not nitrogen content, governs the mechanical integrity of nitrogen-doped graphene: a molecular dynamics study
In MD simulations, graphitic nitrogen barely weakens graphene, a void cuts strength ~23%, and a pyridinic nitrogen cluster—the same vacancy with nitrogen edges—cuts it ~30%, with side-by-side defects interacting over ~80 Å.