▎ 摘　　要

We use nonequilibrium molecular-dynamics simulations to study the effect of structural defects on the thermal conductivity lambda of graphene. Focusing on 5-7 and 5-8 defects in the graphene honeycomb lattice, we find that lambda depends sensitively on whether the defects are isolated, form lines, or form extended arrangements in haeckelites. Our results indicate that the presence of defects makes lambda anisotropic and, depending on the temperature, quenches its value by one to two orders of magnitude with respect to graphene, mainly by reducing the phonon mean free path.