**2.2. Catalysts preparation**

Gamma alumina (CK-300, Ketjen), activated carbon (NORIT RX3 Extra and CNR), and composite support, BTAl and UTAl were used as supports to prepared metal catalyst. Platinum was loaded with PtCl2 and H2PtCl6H2O by incipient wetness technique. After impregnation, catalysts were dried at 393 K in an oven for 24 h and were maintained in desiccator for further use. The catalysts were reduced in a H2 flow at 503 K for 1 h after catalytic test.

New Strategies for Obtaining Inorganic-Organic Composite Catalysts for Selective Hydrogenation http://dx.doi.org/10.5772/65959 187

**Figure 3.** Monomer precursors of the polymeric phase and polymerization starter.
