In this study, cobalt-based film was electrodeposited on nickel foam current collectors for supercapacitor applications. The cobalt-based film was grown directly from pyrophosphate electrolyte to nickel foam by applying a constant voltage of -1.5 V. Cyclic voltamogram and chroamperometric data of cobalt deposition were presented. The resulting cobalt based modified nickel foam electrode was then transferred into the KOH electrolyte. Electrochemical behavior of uncoated and coated nickel foam electrode was characterized in alkaline media. Electroactivity of bare nickel foam increased significantly when it was coated with cobalt film. Cobalt modified nickel foam electrode had high cycle stability in KOH. The morphology of uncoated and coated nickel foam electrode was characterized by SEM. The specific capacitance of the electrode at the scan rates of 5 and 100 mV s-1 was measured as 538 F g-1 and 261 F g-1, respectively. The rate-limiting step of the obtained cobalt based electrode had a surface controlled mechanism.
|Thanks||Perihan Yilmaz Erdogan ve Naime Ozdemir doktora bursu için YÖK 100-2000 programına teşekkür ederler. Yazarlar, Gaziantep Üniversitesi BAP birimine FEF.DT.19.40 kodlu proje desteği için teşekkür ederler.|
: July 4, 2019
|APA||Yilmaz Erdogan, P , Özdemir, N , Zengin, H , Yavuz, A . (2020). Süperkapasitör Uygulamaları için Elektrodepolanmış Kobalt Temelli Filmin Nikel Köpük Elektrot Üzerine Sentezi . Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi , 7 (2) , 638-648 . DOI: 10.35193/bseufbd.586983|