将Ni/SiO2催化剂与磺酸功能化的C/SBA-15固体酸(SO3H-C/SBA-15)混合用于催化硝基苯制对氨基苯酚的反应,考察了二者的质量比、反应压力和温度、搅拌速度和反应时间等对反应性能的影响,采用X射线衍射、H2程序升温脱附、透射电镜、N2吸附-脱附、红外光谱和热重分析对催化剂进行了表征.结果表明,Ni/SiO2上活性中心分布均匀,碳含量为40％的SO3H-C/SBA-15上固体酸酸值最大.当Ni/SiO2和SO3H-C/SBA-15质量比为1∶6时,反应活性较好;在120 ℃,0.6 MPa和搅拌速度1200 r/min的条件下反应3h,硝基苯转化率为85.1％,对氨基苯酚选择性为23.8％.与文献中大多数采用Pt和固体酸混合用作催化剂时相当.
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