Popis: |
Carbon nanofibers were functionalized following two distinct strategies, in order to introduce anchors for the grafting of clusters at their surface. In the first case, chelating phosphine groups were built using a multi-step synthesis, while in the second case, ammonium groups were introduced to create positive charges at the surface. To prove the success of the functionalization, a [Ru 5 PtC(CO) 14 (COD)] cluster was covalently grafted onto CNF-PPh 2 while a negatively charged (NEt 4 )[FeCo 3 (CO) 12 ] cluster was incorporated on CNF - NMe 3 + . Nanometer-sized RuPt and FeCo particles were evidenced by TEM. |