Enhanced electrochemical activity of low temperature solution process synthesized Co3O4 nanoparticles for pseudo-supercapacitors applications. Issue 1 (January 2016)

• Record Type: Journal Article
• Authors: Li, Zhen-Yu; Bui, Phuong T.M.; Kwak, Do-Hwan; Akhtar, M. Shaheer; Yang, O-Bong
• Is Part Of: Ceramics international. Volume 42:Issue 1:Part B(2016)
• Page Start: 1879
• Page End: 1885
• Publication Date: 2016-01
• Subjects: B. Surfaces -- Co3O4 nanoparticles -- Supercapacitor -- Electrochemical properties -- Capacitance; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2015.09.155
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: The highly uniform Co3 O4 nanoparticles (NPs) were synthesized by a low temperature solution process at 70 °C and utilized for pseudo-supercapacitors. The synthesized Co3 O4 NPs possessed well-crystalline semispherical morphology and were extensively characterized in terms of structural, crystalline and electrochemical properties. The synthesized Co3 O4 NPs based electrode exhibited a reasonable specific capacitance of ~304 F/g in 1 M KOH aqueous solution. The capacitance was drastically increased to ~480 F/g when the electrode was prepared by mixing Co3 O4 NPs and super-P carbon. Co3 O4 NPs based electrodes attained the excellent cycling stability with the retention ratio of ~88.6% after 1000 cycles.