【摘要】 Pd（OH）₂催化剂对六硝基六氮杂异伍兹烷（CL-20）的制备具有关键作用。选择CeO₂为催化剂载体，用沉积-沉淀法制备8种Pd（OH）₂/CeO₂催化剂，考察制备温度、浸渍时间、碱源、沉淀pH及载体结构对Pd（OH）₂/CeO₂催化氢解脱苄反应活性的影响。结果表明：Pd（OH）₂/CeO₂可同时作为六苄基六氮杂异伍兹烷（HBIW）和四乙酰基二苄基六氮杂异伍兹烷（TADBIW）氢解脱苄反应的催化剂，并表现出优异的催化活性，产物收率分别可达91%和95%;将其用于HBIW氢解脱苄反应，在金属Pd用量为底物HBIW质量的0.10%时，TADBIW的产率最高可达91%;将其用于TADBIW氢解脱苄反应，Pd用量为底物TADBIW质量的0.28%时，产率可达87%;所用研究方法使用少量Pd催化剂高效地催化HBIW和TADBIW的氢解脱苄反应，为低成本制备CL-20拓宽了道路。更多还原

【Abstract】 Palladium hydroxide catalysts play a key role in the preparation of hexanitrohexaazais-owurtzitane（CL-20）.Eight kinds of Pd（OH）₂/CeO₂ catalysts, for which two kinds of CeO₂ are used as catalyst support, were prepared by deposition-precipitation method. The effects of the preparation temperature, immersion time, the kinds of alkali, pH and the structure of support on the catalytic performance of Pd（OH）₂/CeO₂ are investigated.Pd（OH）₂/CeO₂ catalysts exhibit excellent catalytic activity in the hydrogenolytic debenzylation reaction of both hexabenzylhexaazaisowurtzitane（HBIW） and tetraacetyl-dibenzyl-hexaazaisowurtzitane（TADBIW）,and the yields of products can reach 91% and 95%,respectively.When the amount of Pd used in catalyst is 0.10%（wt/wt） of HBIW substrate, the yield of TADBIW reachs 91%.When the amount of Pd is 0.28%（wt/wt）of TADBIW substrate, the yield of the product is as high as 87%.In this research, a small amount of Pd catalyst is used to efficiently catalyze the hydrogenolytic debenzylation reaction of HBIW and TADBIW,which broadens the way for low-cost preparation of CL-20.更多还原