Catalytic Performance of Pd Deposited on Various Carriers in Hydrogenation of Quinoline

Pd nanoparticles were deposited on two different grades of activated carbon – NORIT and CAW. In addition, these carbons were pre-treated with HNO3 or covered by polyaniline, and these modified carbons were used as carriers for the Pd deposition. The resulting materials were tested as catalysts for the hydrogenation of quinoline. The best-performing samples were further tested in the hydrogenation of 4-methylquinoline. The structural features of carriers and catalysts were elucidated by the N2 adsorption studies. The grade of activated carbon was found to be a key factor controlling its performance, and the effect of the surface modification was negligible.