Promotion effect of lanthanum addition on the catalytic activity of zirconia …

Abstract. Zirconia supported platinumand tungstophosphoric acid (TPA) metal-acid bifunctional catalystsmodified with lanthanum were prepared and tested in the reaction involving the production of branched-chain alkanes by skeletal isomerization of n-pentane. The prepared samples were characterized by XRD, FT-IR, H2-TPR andXPS. Thecatalytic performancewasevaluated at 200 oC underatmospheric …