Pd supported on FeS<sub>2</sub>-rGO composite carrier for efficient selective hydrogenation of nitroarenes

Abstract Palladium-based catalysts are known as effective catalysts for hydrogenation reactions with wide applicability, while the excessive hydrogenation activity limits their application in selective hydrogenation reactions. In this study, a novel Pd/FeS₂-rGO catalyst was prepared by loading palladium onto a FeS₂-rGO composite carrier, and its catalytic performance towards the selective hydrogenation of nitroarenes to aromatic amines was investigated. The Pd/FeS₂-rGO catalyst was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The influence of the carrier on the catalytic performance was explored. The results show that the FeS₂-rGO composite carrier can well disperse and regulate the electron density of Pd, resulting in a 99% conversion and selectivity for the hydrogenation of 4-chloronitrobenzene over the Pd/FeS₂-rGO catalyst. In addition, the catalyst also showed excellent universality and cycling stability for the selective hydrogenation of various nitroarenes, which could be recycled six times without performance degradation. This study provides a new idea for developing high-efficiency catalysts for the selective hydrogenation of nitroarenes.

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	WANG Rui
	TAN Xiaojie
	LI Xudong
	LIU Yachao
	LIU Tengfei
	CUI Shihao
	ZHAO Qingshan

Keywords： palladium-based catalyst composite carrier FeS₂-rGO selective hydrogenation electronic regulation

Received 2024-01-16;

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WANG Rui, TAN Xiaojie, LI Xudong, LIU Yachao, LIU Tengfei, CUI Shihao, ZHAO Qingshan.Pd supported on FeS₂-rGO composite carrier for efficient selective hydrogenation of nitroarenes[J] Chemcial Industry and Engineering, 2024,V41(5): 131-140

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