采用等体积浸渍法,制备了Cr2O3/γ-Al2O3催化剂,通过XRD、固体紫外可见光漫反射和TG-DTA对产物进行了表征,考察了Cr负载量、焙烧温度、反应温度以及催化剂用量等因素对四氢萘催化氧化合成α-四氢萘酮催化性能的影响.结果表明,Cr在催化剂表面上主要以Cr2O3形式存在,尚含有少量的CrO3,且充分分散.在120℃氧化反应8h,7.5％ Cr2 O3/γ-Al2O3催化剂上得到了转化率为50.1％的四氢萘和选择性为79.7％的α-四氢萘酮,该催化剂的稳定性良好.
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