Novel highly utilized PdNi bimetallic-loaded N-doped carbon catalysts prepared from MOF for Suzuki coupling reaction and hydro reduction of nitroaromatics

• Published in: Journal of environmental chemical engineering Vol. 12; no. 5; p. 113324
• Main Authors: Jiang, Yanjie, Han, Siyu, Wang, Gongshu, Chen, Zhangpei, Li, Ping, Hu, Jianshe
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.10.2024
• Subjects: Metal-organic framework; Nitrogen-doped carbon materials; P-nitrophenol; Palladium-based heterogeneous catalysts; Suzuki-Miyaura coupling reaction; Nitrogen-doped carbon materials; Metal-organic framework; P-nitrophenol; Suzuki-Miyaura coupling reaction; Palladium-based heterogeneous catalysts
• ISSN: 2213-3437
• DOI: 10.1016/j.jece.2024.113324

The usage of palladium-based catalysts in numerous chemical reactions has been increased significantly; in particular, the synthesis of heterogeneous catalysts by attaching palladium atoms to carriers has expanded rapidly. Therefore, the selection of nitrogen-doped carbon materials for carriers has become a popular research subject. In this study, Ni-Ni PMOF was first created, then Ni nanoparticles (NPs) modified nitrogen-doped mesoporous carbon materials were synthesized through pyrolysis. Subsequently, Pd atoms were successfully deposited onto the surface of Ni NPs as Pd2+ is capable of being reduced by metal Ni. The structure of the prepared carriers was verified by FT-IR, XRD, SEM, TEM, XPS and other characterizations, and was found to have a fluffy and porous structure that increases the number of active sites of PdNi NPs. This material was found to be effective in catalyzing the Suzuki coupling reaction (TOF = 1019 h) and the reduction reaction of p-nitrophenol (Kapp = 4.34 × 10−2 s−1), and its catalytic activity remained stable even after 10 uses, showing good recoverability and recyclability. This study thus provides a novel approach for the preparation of N-doped porous carbon materials, which can enable green chemistry by making efficient and full use of precious metals. [Display omitted] •Preparation of novel magnetic Ni NPs-loaded nitrogen-doped carbon materials by pyrolysis of Ni-Ni PMOF.•Spontaneous deposition of Pd atoms on the surface of Ni NPs by reduction of Pd2+ by Ni NPs in solution.•PdNi/CN showed excellent activity in the Suzuki reaction (TOF=1019 h−1).•The Kapp value of PdNi/CN in the reduction reaction of 4-NP was 4.34 × 10−2 s−1.•The catalyst PdNi/CN demonstrated good recoverability and recyclability.