Conventional chemical vapor deposition (CVD) appears as one of the
techniques available for diamond layer synthesis. To achieve porous
materials, two approaches can be considered: (i) the first being based
on etching processes [19,20] and (ii) the second consisting in diamond
coating of already porous substrates. This latter method has already
been experienced in the literature, at least on carbon nanotubes [21,
22], and appeared to us as the most valuable technique. Here, we propose
a coating method based on an optimized nano-seeding process
via a layer by layer approach [23].