以磷钨酸铯盐Cs2.5H0.5PW12O40(CsPW)为活性组分,负载到Nb2O5载体上,并用于甘油脱水制备丙烯醛的反应中.通过调节焙烧温度(400–700°C)以及活性组分负载量(5儃60 wt%),对催化剂酸性进行调节.CsPW负载量为20 wt%,500°C焙烧的CsPW/Nb2O5催化剂性能最佳,甘油转化率为96%,丙烯醛选择性为80%,反应10 h内没有失活现象,并且该催化剂具有良好的热稳定性,可通过烧炭进行再生. Cs2.5H0.5PW12O40 (CsPW) as the active component was loaded on the Nb2O5 support and used for the dehydration of glycerol to produce acrolein by adjusting the calcination temperature (400-700 ° C) and the active group CsPW loading of 20 wt%, CsPW / Nb 2 O 5 calcined at 500 ° C showed the best performance with the glycerol conversion of 96% and the acrolein selectivity of 80%, the reaction did not deactivate within 10 h, and the catalyst has good thermal stability, can be regenerated by burning charcoal.