Evaluation of Weight, area, and Volumetric Specific Capacitance Performance of high Graphene Content ZnFe2O4 Electrode for Supercapacitors
Küçük Resim Yok
Tarih
2024
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The main purpose of this study is to synthesize ZnFe2O4 (ZFO) on a nickel foam along with a high amount of graphene. For this purpose, the productions were carried out with high amounts of graphene by hydrothermal method. According to the characterization results, it has been observed that a high amount of graphene nanosheets (GNPs) were successfully adhered to the current collector surface without agglomeration using this method. The electrochemical results have demonstrated a 97% enhancement in the performance of the ZFO electrode with the addition of GNPs, reaching 622 mF/cm(2) at a current density of 1 mA/cm(2). Additionally, the weight and volumetric specific capacitances of this electrode were calculated as 415 F/g and 519 F/cm(3), respectively. Regarding the charging mechanism of this electrode, it was found to be 82% capacitive and 18% diffusion-controlled according to the Dunn method. The abundance of GNPs compared to those in the literature has increased the effectiveness of the diffusion-controlled charging mechanism.
Açıklama
Anahtar Kelimeler
ZnFe2O4, Graphene nanosheets, Volumetric capacitance, Areal capacitance supercapacitor
Kaynak
Transactions On Electrical and Electronic Materials
WoS Q Değeri
N/A
Scopus Q Değeri
Q3
