Investigation of co-doped Chlorella vulgaris as a supercapacitor electrode for energy storage
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Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Supercapacitors are becoming more popular in the field of energy storage day by day. Thanks to their superior features such as fast charge-discharge, high capacities, and stable structures. Especially, supercapacitors designed using biomass as the electrode material are more preferred in this field because they are cheap, abundant, environmentally friendly, high capacity, and have a long cycle life. In this study, two supercapacitor cells were developed using freshwater algae biomass. In the first stage, supercapacitor electrodes were prepared by Co-doped Chlorella vulgaris (Chl-Co), and in the second stage, electrodes were prepared by Co-doped to H3PO4-washed Chlorella vulgaris (Chl-Co-H3PO4). 6 M KOH solution was used as the electrolyte. Electrochemical characterization results of the electrodes were obtained very close to the ideal supercapacitor characteristic. The capacitance values of the Chl-Co electrode were measured as 80 F/g for 1 A/g, but after the activation by H3PO4, the capacitance rose to 169.7 F/g for 1 A/g. The produced electrodes are promising for energy storage in terms of environmental pollution, cost, stability, and capacity.
Açıklama
Anahtar Kelimeler
Kaynak
Journal of Materials Science-Materials in Electronics
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
32
Sayı
23
