“…In recent years superhydrophobic surfaces have been prepared using carbonaceous materials, including amorphous carbon [14e16], carbon nanotubes [3,16,17], graphene [4] and Ketjen black [8,18]. Up to now, many methods have been used to prepare superhydrophobic surfaces [10,19e26], such as biologically inspired approaches, electrospinning, phase separation, crystal growth, templating, etching, physical or chemical vapor deposition, electrochemical reaction and deposition, solegel processing and self-assembly.…”