Investigation of electrochemical behavior of Co3O4–Mn2O3/rGO nanocomposite for supercapacitor applications

Trinity Rabecca, H. J.; Priyajanani, Y.; Manivannan, S.; Lourduraj, A. J. Clement

doi:10.1007/s10854-023-10810-2

Cited by 4 publications

(1 citation statement)

References 42 publications

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“…Moreover, recent studies have shown that RGO/Me composites possess properties different from those of the individual components [8,9]. This phenomenon provides a wide range of applications for composites based on RGO and metal-containing nanoparticles in sensor systems [10], for the creation of batteries and supercapacitors [11,12], in catalysis [7], and in biomedicine [13].…”

Section: Introductionmentioning

confidence: 99%

Ni Nanoparticles on the Reduced Graphene Oxide Surface Synthesized in Supercritical Isopropanol

Ioni,

Popova,

Maksimov

et al. 2023

Nanomaterials

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Nanocomposites based on ferromagnetic nickel nanoparticles and graphene-related materials are actively used in various practical applications such as catalysis, sensors, sorption, etc. Therefore, maintaining their dispersity and homogeneity during deposition onto the reduced graphene oxide substrate surface is of crucial importance to provide the required product characteristics. This paper demonstrates a new, reproducible method for preparing a tailored composite based on nickel nanoparticles on the reduced graphene oxide surface using supercritical isopropanol treatment. It has been shown that when a graphene oxide film with previously incorporated Ni2+ salt is treated with isopropanol at supercritical conditions, nickel (2+) is reduced to Ni (0), with simultaneous deoxygenation of the graphene oxide substrate. The resulting composite is a solid film exhibiting magnetic properties. XRD, FTIR, Raman, TEM, and HRTEM methods were used to study all the obtained materials. It was shown that nickel nanoparticles on the surface of the reduced graphene oxide had an average diameter of 27 nm and were gradually distributed on the surface of reduced graphene oxide sheets. The data obtained allowed us to conduct a reconnaissance discussion of the mechanism of composite fabrication in supercritical isopropanol.

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