o-Chlorotoluene (o-CT) ammoxidation to prepare o-chlorobenzonitrile (o-CBN) was investigated on Al₂O₃-ZrO₂ supported V₂O₅ catalysts in the temperature range of 360 to 420 °C. A set of vanadium oxide supported on mixed oxides with varying its loadings were prepared by wet impregnation method. The catalysts surface and structural characteristics were derived from BET-surface area, X-ray diffraction, FT-infrared, temperature programmed reduction, temperature programmed desorption of ammonia and UV–Vis diffuse reflectance spectroscopy. The characterization results revealed that vanadium species were well dispersed and strongly interacted with mixed oxide support. The ammoxidation activity was depended on V₂O₅ content and its nature of surface species existing in the catalyst. The catalyst with 10 wt% of V₂O₅ on Al₂O₃-ZrO₂ showed high ammoxidation activity with 100% selectivity to o-CBN. Moreover, the catalyst showed consistent activity during time on stream study.

在Al ₂ O ₃ -ZrO ₂负载的V ₂ O ₅上研究了o -氯甲苯（o -CT）氨氧化制备邻氯苯甲腈（o -CBN）催化剂在 360 至 420 °C 的温度范围内。采用湿法浸渍法制备了一组负载在不同负载量的混合氧化物上的钒氧化物。催化剂表面和结构特征来自 BET 表面积、X 射线衍射、FT 红外、程序升温还原、氨的程序升温解吸和紫外-可见漫反射光谱。表征结果表明，钒物质分散良好，并与混合氧化物载体强烈相互作用。氨氧化活性取决于催化剂中存在的V ₂ O ₅含量及其表面物质的性质。在Al ₂ O ₃上含有10wt% V ₂ O ₅的催化剂-ZrO ₂显示出高氨氧化活性，对 o-CBN 的选择性为 100%。此外，催化剂在运行研究期间表现出一致的活性。