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Updated: Apr 5, 2026

Scalable Syntheses of Graphene Oxide and Reduced Graphene Oxide using Cascade Design Oxidation and Highly Basic Reduction Reactions
Published on: July 3, 2025
A highly active recyclable gold-graphene nanocomposite material for oxidative esterification and Suzuki
Paramita Mondal1, Noor Salam2, Avijit Mondal3
1Department of Chemistry, University College of Science, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, W.B., India; Department of Chemistry, University of Kalyani, Kalyani, Nadia 741235, W.B., India.
Abstract:
A graphene based composite with gold nanoparticles has been synthesized via a simple chemical route and the structure and compositions of nanocomposite has been characterized. The catalyst was found to be remarkably stable and active for the oxidative esterification of alcohols under present reaction conditions using molecular oxygen as green oxidant and Suzuki cross-coupling reactions between aryl halides and phenylboronic acids using environmentally friendly water as solvent. The versatility of both the protocols was demonstrated by taking a number of substrates. This protocol offers several advantages like high yields, clean reactions, recyclability of the catalyst, reaction in water and use of green oxidant. This study suggests graphene, as an economical substitute for carbon nanotubes, could act as a prominent support in heterogeneous catalysis.
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