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The stereoselectivity was increased towards the production of unsaturated alcohols such as geraniol and nerol in the citral hydrogenation by application of carbon nanotubes (CNT) as support of the Pt particles. Characterization techniques such as X-ray diffraction and volumetric chemisorption were employed in order to obtain information such as the diameter of the metallic particles. The evolution of the selectivity towards the hydrogenation products was also studied. It was shown that 2Pt/CNT2 produced remarkable results in the hydrogenation reaction of citral, giving rise to high values of unsaturated alcohols.