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

Autor: Jian-Xin Kang, Lin Guo, Yong Zhao, Zhongning Huang, Dawei Pang, Lianmeng Wang, Yan Zhang, Xiuqin Yang, Xiangyu Chen
Rok vydání: 2021
Předmět:
Zdroj: Nano Research. 15:1193-1198
ISSN: 1998-0000
1998-0124
DOI: 10.1007/s12274-021-3623-5
Popis: 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.
Databáze: OpenAIRE
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