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Reduced Graphene Oxide/α-Fe2O3 Fibres as Active Material for Supercapacitor Application


Radić, Gabrijela; Šajnović, Ivan; Petrović, Željka; Kraljić Roković, Marijana
Reduced Graphene Oxide/α-Fe2O3 Fibres as Active Material for Supercapacitor Application // Croatica chemica acta, 91 (2018), 4; 481-490 doi:10.5562/cca3452 (međunarodna recenzija, članak, znanstveni)


Naslov
Reduced Graphene Oxide/α-Fe2O3 Fibres as Active Material for Supercapacitor Application

Autori
Radić, Gabrijela ; Šajnović, Ivan ; Petrović, Željka ; Kraljić Roković, Marijana

Izvornik
Croatica chemica acta (0011-1643) 91 (2018), 4; 481-490

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Composite ; hematite fibres ; hydrothermal method ; reduced graphene oxide ; supercapacitor

Sažetak
The composite hydrogel, composed of reduced graphene oxide and α-Fe2O3 fibres (rGO/α- Fe2O3), was successfully prepared by the hydrothermal procedure starting from GO and α- Fe2O3 nanofibres. According to the SEM and XRD results, α-Fe2O3 fibres are distributed between rGO sheets increasing the inter-sheet space. The rGO/α-Fe2O3 composite was tested as an active material in supercapacitor by means of cyclic voltammetry, galvanostatic charging/discharging and electrochemical impedance spectroscopy in 0.5 mol dm–3 Na2SO4. The obtained results confirmed a positive effect of the α-Fe2O3 addition on capacitive properties. Improved capacitive properties of the composite make this material suitable for supercapacitor application.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo



POVEZANOST RADA


Projekt / tema
HRZZ-IP-11-2013-8825
HRZZ-IP-2016-06-8254 - Nastajanje i svojstva 1D a-Fe2O3 nanostruktura dopiranih odabranim metalnim ionima (Mira Ristić, )

Ustanove
Prehrambeno-biotehnološki fakultet, Zagreb,
Institut "Ruđer Bošković", Zagreb,
Fakultet kemijskog inženjerstva i tehnologije, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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