Bimetallic CoNi Nanoflowers for Catalytic Transfer Hydrogenation of Terminal Alkynes

Abstract

The development of bimetallic and magnetic nanomaterials as a catalyst is highly desirable for organic transformations due to their recyclability for the sustainable future of chemical industries. Bimetallic CoNi nanoflowers were developed via the facile liquid-phase reduction method and were employed for the hydrogenation of terminal alkynes. The structural and morphological studies were analyzed by X-ray diffraction, Field-Emission Scanning Electron Microscopy, and High Resolution Transmission Electron Microscopy. The bimetallic CoNi nanoflower exhibited 100 % conversion with ∼100 % selectivity towards alkane products with recyclability up to six cycles. The transfer hydrogenation mechanism was proposed via diimide formation with Co(0)/Ni(0) state, confirmed by X-ray Photoemission Spectroscopy analysis. © 2022 Wiley-VCH GmbH.