Scientists at the Max Planck Institute for Polymer Research (MPI-P) in Mainz and the National Univ. of Singapore have attested that the thermal conductivity of graphene diverges with the size of the samples. This discovery challenges the fundamental laws of heat conduction for extended materials.
“We recognized mechanisms of heat transfer that actually contradict Fourier’s law in the micrometer scale. Now all the previous experimental measurements of the thermal conductivity of graphene need to be reinterpreted. The very concept of thermal conductivity as an intrinsic property does not hold for graphene, at least for patches as large as several micrometers”, says Davide Donadio.[READ ORIGINAL REPORT](http://www.rdmag.com/news/2014/05/physicists-show-unlimited-heat-conduction-graphene#.U3EMiWtgSb8.reddit)