应用连续催化反应，XPS，XRD，H2－TPR,O2－TPD和In－situMossbauer谱等方法表征了一系列组成不同的NaCl／B2O3／Fe2O3催化剂．结果表明NaCl与B2O3在修饰FeOx催化剂上存在明显的协同作用，B2O3调变了FeOx的还原能力，NaCl修饰了B2O3／FeOx使之具有很高的还原速度与晶格氧气化速度．催化剂的催化性能同这种协同作用密切相关． A series of NaCl / B2O3 / Fe2O3 catalysts with different compositions were characterized by means of continuous catalytic reaction, XPS, XRD, H2-TPR, O2-TPD and In-situ Mossbauer spectroscopy. The results show that there is a synergistic effect of NaCl and B2O3 on the modification of FeOx catalyst, B2O3 modifies the reduction ability of FeOx, and NaCl is modified by B2O3 / FeOx so that it has high reduction rate and lattice oxygenation rate. The catalytic performance of the catalyst is closely related to this synergistic effect.