Catalytic Hydrogenation of Nitrobenzene to Aniline by Ag/γ-Fe_2O_3  

作　　者：赵玲玲 王海峰 祁刚 

机构地区：[1]Department of Chemistry and Chemical Engineering,Yancheng Institute of Technology [2]Binhai County Safety Supervison Bureau

出　　处：《Chinese Journal of Structural Chemistry》2016年第6期872-878,共7页结构化学（英文）

基　　金：supported by the science and technology support project of Jiangsu Province(No.BY2015057-03)

摘　　要：The Ag/γ-Fe_2O_3 nanocomposite was synthesized by solvothermal reduction method via using ferric nitrate and silver nitrate as raw materials, and ethylene glycol as the reducing agent. The composite was characterized by X-ray powder diffraction, scanning electron microscope, transmission electron microscope, and energy dispersive X-ray. The prepared Ag/γ-Fe_2O_3 was used for the catalytic hydrogenation of nitrobenzene to aniline by hydrazine hydrate. The factors such as the silver content in the catalyst, reaction time, reaction temperature and the regeneration of catalyst were investigated. The results showed that the yield of aniline reached 100% by utilizing the 1%wt（nitrobenzene） Ag/γ-Fe_2O_3 for the catalytic hydrogenation of nitrobenzene for 3 h to obtain aniline at 78 ℃, hydrazine hydrate as the hydrogen source, while the silver content in the catalyst was 3%mol.The Ag/γ-Fe_2O_3 nanocomposite was synthesized by solvothermal reduction method via using ferric nitrate and silver nitrate as raw materials, and ethylene glycol as the reducing agent. The composite was characterized by X-ray powder diffraction, scanning electron microscope, transmission electron microscope, and energy dispersive X-ray. The prepared Ag/γ-Fe_2O_3 was used for the catalytic hydrogenation of nitrobenzene to aniline by hydrazine hydrate. The factors such as the silver content in the catalyst, reaction time, reaction temperature and the regeneration of catalyst were investigated. The results showed that the yield of aniline reached 100% by utilizing the 1%wt（nitrobenzene） Ag/γ-Fe_2O_3 for the catalytic hydrogenation of nitrobenzene for 3 h to obtain aniline at 78 ℃, hydrazine hydrate as the hydrogen source, while the silver content in the catalyst was 3%mol.

关 键 词：Ag/γ-Fe2O3 hydrazine hydrate nitrobenzene aniline catalytic hydrogenation 

分 类 号：O643.36[理学—物理化学]