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纳米Fe3O4负载镍催化剂的制备及其催化加氢性能

, PP. 60-66

Keywords: 纳米Fe3O4,介孔二氧化硅,羰基镍,催化加氢,9-苯蒽

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Abstract:

采用FeSO4?7H2O单一铁源,用改进的化学共沉淀法制备了四方体纳米Fe3O4粒子.以十六烷基三甲基溴化铵(CTAB)为模板,通过溶胶-凝胶法制备了介孔二氧化硅包覆的Fe3O4纳米磁性粒子.以羰基镍(NTC)为镍源,制备磁性负载型金属镍催化剂Ni/MFe3O4(mesoporousFe3O4).利用透射电子显微镜(TEM)、选区电子衍射花样(SAED)、X线衍射分析(XRD)、X射线光电子能谱(XPS)、振动磁强计(VSM)等手段对催化剂进行表征.结果表明,Ni/MFe3O4催化剂具有良好的催化活性.采用Ni/MFe3O4催化加氢9-苯蒽,9-环己基十四氢蒽的收率可达87.6%.

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