活性炭负载氢氧化氧铋催化水合肼还原芳香族硝基化合物

采用浸渍法制备了BiO(OH)/C催化剂。催化剂的XRD谱表明，当催化剂中BiO(OH)的质量分数小于10%时，BiO(OH)在活性炭中高度分散。反应温度为75 ℃时，催化剂重复使用7次仍保持较高活性。在5 mL乙醇中以0.05 g 10%（质量分数）BiO(OH)/C，1 mmol芳香族硝基化合物和2 mmol水合肼于75 ℃反应一定的时间，所得芳胺的收率为88%～99%。

Reduction of aromatic nitro compounds with hydrazine hydrate catalyzed by bismuth oxide hydroxide supported on activated carbon

BiO(OH)/C catalysts were prepared by impregnation of activated carbon with bismuth nitrate solution. XRD patterns of the catalysts show that BiO(OH) was well-dispersed in activated carbon, when the mass percent of BiO(OH) in catalyst is not more than 10%. At 75 oC, the catalytic activity was maintained during 7 runs. Under the conditions of 1 mmol of aromatic nitro compounds，2 mmol of hydrazine hydrate，0.05 g of 10% (mass percent) BiO(OH)/C, 5 mL of ethanol, reacting at 75 oC for a period of time，anilines were prepared in 88%～99% yields.