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Graphene oxide: Fe2O3 nanocomposite: synthesis, properties, and applications

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2023, 33(3), pp.605-640
  • DOI : 10.1007/s42823-023-00469-4
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : October 14, 2022
  • Accepted : January 16, 2023
  • Published : May 1, 2023

Idisi David O. 1,  Aigbe Uyiosa Osagie 2,  Ahia Chinedu C. 1,  Meyer Edson L. 1

1Fort Hare Institute of Technology, University of Fort Hare
2Department of Mathematics and Physics, Cape Peninsula University of Technology

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ABSTRACT

Graphene oxide/Iron III oxide (GO: Fe2O3) nanocomposites (NCs) have been topical in recent times owing to the enhanced properties they exhibit. GO acting as a graphene derivative has demonstrated superior features as obtainable in a graphene sheet. Furthermore, the attachment of oxygen functional groups at its basal and edge planes of graphene has allowed for easy metal/oxide functionalization for improved properties harvesting. Fe2O3 nanoparticles (NPs) on the other hand have polymorphic property enabling the degeneracy of Fe2O3 in different phases, thereby resulting in different physical and crystalline properties when used to functionalize GO. The properties of GO: Fe2O3 have been applied to supercapacitor energy harvesting, Li-ion batteries, and biomedicine. The enhanced properties are attributed to the adsorption and electronic structure properties of Fe atoms. In this review, the various synthesis used in the preparation of reduced/graphene oxide: Fe2O3 is discussed. As indicated in the considered literature, the XPS analysis suggests electronic bond interactions between C–C, C–O, C–Fe and Fe–C. The available report on UPS measurements further suggests the formation of mixed states emanating from π and σ bonds. The discussed reports further suggest that the various applications based on the harvesting of electronic, electrical, and magnetic properties are due to the ionic and exchange interactions between the different orbital states of carbon, oxygen and iron. The challenges and future prospects of the synthesis and application of GO/Fe2O3 are examined.

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