Hydrophobic mixed-metal MOF-derived carbon sponges

We report the preparation of carbon sponges with highly hydrophobic and superhydrophobic metal nanoparticles from melamine–formaldehyde sponges coated with metal–organic structures based on Co, Ni and Ni–Co with rod morphology using a simple one-step carbonization method at temperatures of 300, 500 and 700 °C.