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      https://www.ias.ac.in/article/fulltext/boms/044/0112

    • Keywords

       

      Carbon materials; electrostatic spray deposition; reduced graphene oxide; surfaces; thin films.

    • Abstract

       

      Graphene-based materials such as graphene oxide (GO) and chemically reduced graphene oxide (rGO) thin films have been fabricated using electrostatic spray deposition (ESD), followed by thermal annealing under Ar/H$_2$ atmosphere. The thickness and surface morphology of thin films of GO and rGO on silicon substrates were controlled by varying deposition time and content of GO/rGO in tetrahydrofuran (THF) solution. Here, we present a comparative analysis between GO and rGO thin films. Water contact angle (WCA) measurements of these thin films were ${\sim}$88$^{\circ}$for the GO films and >127$^{\circ}$for the rGO films. We discuss how their hydrophobic behaviour is influenced by removal of oxygencontaining functional groups during the reduction process.

    • Graphical Abstract

       

    • Author Affiliations

       

      RAMIZ ZULKHARNAY1 2 ORAL UALIBEK2 OLZAT TOKTARBAIULY2 PAUL W MAY1

      1. School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
      2. National Laboratory Astana, Nazarbayev University, Nur-Sultan 010000, Kazakhstan
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