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制备了易于从反应体系中分离的高活性、高选择性双重负载双金属催化剂［０．８０Ｐｄ－０．２０Ｐｔ／ＰＶＰ］／载体，并用于硝基苯还原反应。其中以Ａｌ２Ｏ３为载体的催化剂具有最高活性。考察了钯负载量、乙酸钠用量、溶剂等因素对催化剂活性和稳定性的影响。
A highly active and highly selective double-supported bimetallic catalyst [0.80Pd-0.20Pt / PVP] / support which can be easily separated from the reaction system was prepared and used for nitrobenzene reduction. Among them, Al2O3-supported catalysts have the highest activity. The effects of palladium loading, sodium acetate dosage and solvent on the activity and stability of the catalyst were investigated.