  We present a high scale method to produce few layer graphene (FLG) based on
the mechanical exfoliation of graphite and compare the obtained FLG with the
one reported earlier arising from pencil lead ablation. Several things are
modified and improved in the new approach. The purification and the ablation
set_up are simplified, and the morphology of the FLG is modified and improved
in view of some applications. The morphology dependent properties of FLGs, lead
FLG and graphite FLG, are investigated as conductive layers and in
nanocomposites. Newly obtained FLG has higher aspect ratio (high lateral size
vs. thickness,higher 2D aspect) which is reflected by an enhanced
transparency_conductivity features of the layer (film) and an elongation at
break behavior in the polymer composites. On the contrary, the nanocomposite
containing lead FLG shows for instance excellent gas barrier properties due to
the multistep structure of lead FLG flakes. Such structure exhibits less 2D and
more 3D character, which can be highly suitable for applications where the
presence of active, reactive edges is beneficial ( in catalysis or
supercapacitors electrodes). Nuclear reaction analysis is employed to
investigate the morphology of graphite FLG film.
