Nitrogen plasma synthesis of flexible supercapacitors based on reduced graphene oxide/aloe vera/carbon nanotubes nanocomposite
Küçük Resim Yok
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer Japan Kk
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Flexible supercapacitors (FS) are ideal as power backups for upcoming stretchable electronics due to their high power density and good mechanical compliance. However, lacking technology for FS mass manufacturing is still a significant obstacle.The present study describes a novel method for preparing FS based on reduced graphene oxide (RGO) using the N+ plasma technique, in which N+ reduces graphene oxide on the surface of a cotton/polyester substrate. The effect of aloe vera (AV) as a natural reducing & capping agent and carbon nanotubes (CNT) as nanoconductors on the electrochemical performance of the electrodes is studied. FESEM and XPS were employed to investigate the electrodes' structural and chemical composition of electrodes. The galvanostatic charge-discharge curves of electrodes revealed the enhancement of the electrochemical activity of the as-prepared electrode upon additions of AV and CNT. The areal capacitance of the RGO, RGO/AV, and RGO/AV/CNT supercapacitors at 5 mV/s was 511, 1244.5, and 1879 mF/cm(2), respectively. The RGO electrode showed capacitive retention of 80.9% after 2000 cycles enhanced to 89.7% and 92% for RGO/AV and RGO/AV/CNT electrodes, respectively. The equivalent series resistance of the RGO electrode was 126.28 & omega;, decreased to 56.62 and 40.06 & omega; for RGO/AV and RGO/AV/CNT electrodes, respectively.
Açıklama
Anahtar Kelimeler
Flexible Supercapacitors, Plasma, Graphene, Carbon Nanotubes, Aloe Vera
Kaynak
Carbon Letters
WoS Q Değeri
N/A
Scopus Q Değeri
Q2
Cilt
33
Sayı
6
