Application of Bimetallic and Trimetallic Nanoparticles Supported on Graphene as novel Heterogeneous Catalysts in the Reduction of Nitroarenes, Homo-coupling, Suzuki-Miyaura and Sonogashira Reactions

In the last decade, the use of heterogeneous catalysts based on Metal Nanoparticles (MNPs) has attracted increasing attention due to their prominence as nanocatalysts in several key chemical transformations. Notably, it is well identified that supporting Metal Nanoparticles (MNPs) with suitable solid surfaces can protect the MNPs from leaching, deactivation, and also increasing its ease of separation and possible reusability. Graphene oxide (GO) as a conductive surface could have non-covalent bonding interactions like hydrogen bonding, electrostatic and π –π* stacking interactions with substrate leading to activation of the substrate. Remarkably, it is recognized that bimetallic nanoparticles supported on graphene oxide often show novel properties that are not present on either of the parent metal or surfaces. In this review, we tried to reveal the potential advantages of bimetallic and trimetallic nanoparticles supported on graphene oxide in organic transformations, including the reduction of nitroarenes, Suzuki-Miyaura and Sonogashira coupling reactions.