• 文献标题:   Highly active reduced graphene oxide supported Ni nanoparticles for C-S coupling reactions
  • 文献类型:   Article
  • 作  者:   RANA S, VELAZQUEZ JJ, JONNALAGADDA SB
  • 作者关键词:  
  • 出版物名称:   NANOSCALE ADVANCES
  • ISSN:   2516-0230
  • 通讯作者地址:  
  • 被引频次:   1
  • DOI:   10.1039/d2na00316c EA JUL 2022
  • 出版年:   2022

▎ 摘  要

Air-stable Ni nanoparticles (with particle size similar to 11 nm) supported on reduced graphene oxide [Ni(0)@RGO] was prepared by a simple and easy procedure. We previously described the Kumada-Corriu C-C cross-coupling reaction between iodo-arenes and Grignard reagents with Ni(0)RGO as a stable and efficient catalyst. This Ni(0)RGO catalyst gave an excellent yield (92%) and good recyclability (up to the 5(th) cycle). This communication confirms that the catalyst shows superior efficacy for the C-S coupling reaction, similar to that for the Kumada-Corriu C-C cross-coupling reaction. A catalytic experiment with the Ni(0)@RGO recycled material was also performed. HRTEM study of the reused material after the C-S coupling reaction confirmed the retention of the original (fresh) catalyst structure. It is reusable up to the 7(th) cycle without any activity loss.