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A series of MoTe_(0.15)V_(0.1)P_xO_n catalysts supported on the SiC were prepared by incipient wetness impregnation.The addition of P to MoTe_(0.15)V_(0.1)O_n/SiC catalysts improved the catalytic performance of selective oxidation from propane to acrolein(ACR),and the catalyst showed highest selectivity(33.7%) and yield(10.7%) when x = 0.05.The MoTe_(0.15)V_(0.1)P_xO_n/SiC catalysts have been characterized by XRD,H_2-TPR,Raman,XPS and NH_3-TPD.The results indicated that a little H_3PMo_(12)O_(40) heteropoly acid and(VO)_2P_2O_7 formed and MoO_3 phase lessened after addition of P.The addition of P promoted the active species dispersed,increased the acidity on the surface,as well as might make the redox process easier.These significant differences improved the activity and selectivity of ACR.
A series of MoTe_ (0.15) V_ (0.1) P_xO_n catalysts supported on SiC was prepared by incipient wetness impregnation. The addition of P to MoTe_ (0.15) V_ (0.1) O_n / SiC catalysts improved the catalytic performance of selective oxidation from propane (0.15) V_ (0.1) P_xO_n / SiC catalysts have been characterized by XRD, H_2-TPR, Raman, XPS and NH_3-TPD.The results indicated that a little H_3PMo_ (12) O_ (40) heteropolyacid and (VO) _2P_2O_7 formed and MoO_3 phase lessened after addition of P.The addition of P promoted the active species dispersed, increased the acidity on the surface, as well as might make the redox process easier.These significant differences improved the activity and selectivity of ACR.