VPO catalysts were prepared at different temperature.BET, XRD and SEM techniques were used to investigate the effect of preparation temperature on surface area and phase composition of the catalysts.

• 在不同的温度下制备VPO催化剂,采用BET、XRD和SEM等测试手段考察制备温度对催化剂的比表面及晶相结构的影响。