Research Article

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2022, 15(2): 1193–1198

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https://doi.org/10.1007/s12274-021-3623-5

Highly efficient and recyclable amorphous Pd(II)/crystal Pd(0) catalyst for boosting Suzuki reaction in aqueous solution

Yong Zhao1,§ Zhongning Huang1,§ Lianmeng Wang1, Xiangyu Chen1, Yan Zhang1, Xiuqin Yang1, Dawei Pang2, Jianxin Kang1 (✉), and Lin Guo1 (✉)

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1 School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory of Bio-Inspired Smart interfacial Science and Technology, Beihang University, Beijing 100191, China
2 Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
§ Yong Zhao and Zhongning Huang contributed equally to this work.

Keywords: palladium, amorphous structure, supported catalyst, mesoporous SiO2 shell, Suzuki reaction
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  • Abstract
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Ultrafine and highly dispersed Pd nanoparticles have drawn considerable attention with high activity, selectivity and atomic efficiency. In this paper, amorphous Pd(II)-complex solid spheres with ~ 5 nm Pd nanoparticles loaded on were successfully achieved through a simple and gentle one-pot solution method with vitamin B1 simultaneously as complexing agent and reducing agent. An ultrathin mesoporous SiO2 shell was then coated at the surface of Pd(II-0) spheres as the armor which could prevent the dissolution of Pd(II) during the catalytic process. The combination of Pd(II) and Pd(0) endowed Pd(II-0)@m-SiO2 catalyst an excellent performance in eco-friendly aqueous media Suzuki reactions. The high activity, productivity and recyclability were all comparable with the best Pd catalysts ever reported. The ingenious formation of amorphous Pd(II)/crystal Pd(0) with enhanced catalytic performances provides a new, scalable strategy to practical promotion of Suzuki cross-coupling reactions.
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Highly efficient and recyclable amorphous Pd(II)/crystal Pd(0) catalyst for boosting Suzuki reaction in aqueous solution. Nano Res. 2022, 15(2): 1193–1198 https://doi.org/10.1007/s12274-021-3623-5

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