A study of Pd/SO4/ZrO2/Al2O3 catalysts in n-hexane isomerization

Authors :: M.D. Smolikov
A. S. Belyi
S. S. Yablokova
O. V. Dzhikiya
T. I. Gulyaeva
T. V. Kireeva
E. A. Paukshtis
K. V. Kazantsev
Source :: AIP Conference Proceedings.
Publication Year :: 2017
Publisher :: Author(s), 2017.
Abstract: The effect of palladium concentration in a range from 0.02 to 1.6 wt.% on characteristics of n-hexane isomerization was studied. The (O2-Hchem) titration and O2 chemisorption study revealed that palladium in Pd/SO4/ZrO2/Al2O3 systems adsorbs hydrogen in a ratio H/Pds = 1.13-1.65 at./at. Investigation of the charge state of the metal by IR spectroscopy of adsorbed CO showed the presence of both the metallic (Pd0) and charged palladium species. Pd/SO4/ZrO2/Al2O3 catalysts with charged palladium atoms exhibit high activity and selectivity in n-hexane isomerization.