The supported iron catalyst Fe 2O 3 La 2O 3 γ Al 2O 3 has been studied by temperature programmed reduction(TPR) and Mssbauer spectroscopy(MES). The results show that this catalyst, in which the carrier...The supported iron catalyst Fe 2O 3 La 2O 3 γ Al 2O 3 has been studied by temperature programmed reduction(TPR) and Mssbauer spectroscopy(MES). The results show that this catalyst, in which the carrier γ Al 2O 3 is modified by La 2O 3, exhibits much stronger active component support interaction, stabilizes the ferrous phase and thus is more difficult to reduce to α Fe. Meanwhile no iron carbide can be detected after Fischer Tropsch synthesis accounting for a strong interaction between the active phase and the carrier.展开更多
文摘The supported iron catalyst Fe 2O 3 La 2O 3 γ Al 2O 3 has been studied by temperature programmed reduction(TPR) and Mssbauer spectroscopy(MES). The results show that this catalyst, in which the carrier γ Al 2O 3 is modified by La 2O 3, exhibits much stronger active component support interaction, stabilizes the ferrous phase and thus is more difficult to reduce to α Fe. Meanwhile no iron carbide can be detected after Fischer Tropsch synthesis accounting for a strong interaction between the active phase and the carrier.
