期刊
NANO RESEARCH
卷 15, 期 2, 页码 1193-1198出版社
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-021-3623-5
关键词
palladium; amorphous structure; supported catalyst; mesoporous SiO2 shell; Suzuki reaction
类别
资金
- Beijing Natural Science Foundation [2194077]
- National Natural Science Foundation of China [51532001, 52002010]
- National Postdoctoral Program for Innovative Talents [BX20180020]
- China Postdoctoral Science Foundation [2018M640041]
The study successfully prepared amorphous Pd(II) complex solid spheres loaded with Pd nanoparticles using a simple and gentle method, and then coated a thin mesoporous SiO2 shell on the surface. The combination of Pd(II) and Pd(0) provided a new approach for the enhanced catalytic performance of Pd(II-0)@m-SiO2 catalyst in Suzuki reactions.
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 similar to 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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据