Chem. J. Chinese Universities ›› 2024, Vol. 45 ›› Issue (5): 20240040.doi: 10.7503/cjcu20240040

• Physical Chemistry • Previous Articles     Next Articles

Nitrogen-doped Carbon Material MG-T Heterogeneous Catalyzed Hydrogenation of Nitrobenzene to Aniline

GAO Yongping, LIU Bai, KANG Jianing, LYU Jieqiong, YU Zeguang, ZHANG Zhihui, GAO Wenxiu()   

  1. School of Chemical and Pharmaceutical Engineering,Jilin Institute of Chemical Technology,Jilin 132022,China
  • Received:2024-01-23 Online:2024-05-10 Published:2024-02-19
  • Contact: GAO Wenxiu E-mail:gaowenxiu-0922@jlict.edu.cn
  • Supported by:
    the Project of Science and Technology Development of Jilin Province, China(2020122373JC);the Project of Science and Technology of the Education Department of Jilin Province, China(JJKH20200240KJ)

Abstract:

Aniline, as an important chemical intermediate, is mainly prepared by catalyzing the hydrogenation of nitrobenzene. In this study, a sacrificial template MCA was prepared using melamine and cyanuric acid, and the precursor MG was synthesized using glucose as the carbon source, and nitrogen-doped carbon material MG-TT/℃, denotes the carbonation temperature) was obtained by high-temperature carbonization, which was used in the heterogeneous catalytic nitrobenzene hydrogenation to aniline reaction. A preliminary study of the reaction mechanism was carried out by combining the results of material characterisation and catalytic evaluation. The experimental results indicated that the carbonisation temperature affects the change of nitrogen species configuration in MG-T, and the graphitic nitrogen plays a key role in the hydrogenation activity of the catalysts. The catalyst MG-800 reacted in ethanol solvent with hydrazine hydrate as the reducing agent at 80 ℃ for 4 h. The conversion of nitrobenzene was 96%, the product selectivity was 100%, and the catalyst could be recycled at least 9 times, with good stability and recyclability, which is a class of recyclable heterogeneous catalysts for the hydrogenation of nitrobenzene to aniline.

Key words: Nitrogen-doped carbon material, Nitrobenzene hydrogenation, Heterogeneous catalysis, Aniline

CLC Number: 

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