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Synthesis of bifunctional Pt/MgAPO-5 catalysts and their catalytic performance in the hydrogenation of nitrobenzene to p-aminophenol

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Abstract

MgAPO-5 molecular sieves have been synthesized using diethylaminoethanol as the templating agent in a wide range of the MgO/Al2O3 ratio. The samples were characterized by XRD, SEM, solid state NMR, FT-IR and NH3-TPD. Using MgAPO-5 as acidic supports, bifunctional Pt/MgAPO-5 catalysts were prepared for hydrogenation of nitrobenzene to p-aminophenol (PAP). The results showed that the MgO/Al2O3 ratios influenced the Mg content and the acidity of MgAPO-5 samples, thereby greatly affecting the catalytic performance of Pt/MgAPO-5 catalysts. The selectivity to PAP over Pt/MgAPO-5 was dependent on the amount of strong acid sites of MgAPO-5. When the MgO/Al2O3 molar ratio was 0.5, the synthesized MgAPO-5 sample exhibited the largest amount of strong acid and a highest PAP yield of 41.1% was achieved over Pt/MgAPO-5 catalyst.

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Authors and Affiliations

  1. Key Lab of Green Chemical Technology & High Efficient Energy Saving of Hebei Province, Hebei University of Technology, Tianjin, 300130, China

    ShuFang Wang, YaDan Jin, BeiBei He, YanJi Wang & XinQiang Zhao

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  1. ShuFang Wang
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  2. YaDan Jin
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  4. YanJi Wang
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Correspondence to YanJi Wang.

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Wang, S., Jin, Y., He, B. et al. Synthesis of bifunctional Pt/MgAPO-5 catalysts and their catalytic performance in the hydrogenation of nitrobenzene to p-aminophenol. Sci. China Chem. 53, 1514–1519 (2010). https://doi.org/10.1007/s11426-010-4029-5

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  • DOI: https://doi.org/10.1007/s11426-010-4029-5

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