摘要
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 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.
基金
supported by the National Natural Science Foundation of China(No20873123)
