Co3O4 Electrode Prepared by Using Metal-Organic Framework as a Host for Supercapacitors. (17th March 2015)

• Record Type: Journal Article
• Authors: Jiang, Jiaqiang; Wei, Fuxiang; Yu, Genxi; Sui, Yanwei
• Other Names: Tsuzuki Takuya Academic Editor.
• Is Part Of: Journal of nanomaterials. Volume 2015(2015)
• Publication Date: 2015-03-17
• Subjects: Nanostructured materials -- Periodicals; Nanotechnology -- Periodicals; Nanomatériaux; Nanostructured materials; Nanotechnology; Nanostructures; Nanotechnology; Periodicals; Fulltext; Internet Resources; Periodicals; 620.115
• DOI: 10.1155/2015/192174
• Languages: English
• ISSNs: 1687-4110

Abstract

Abstract : Co3 O4 nanoparticles were prepared from cobalt nitrate that was accommodated in the pores of a metal-organic framework (MOF) ZIF-8 (Zn(MeIM)2, MeIM = 2-methylimidazole) by using a simple liquid-phase method. Analysis by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed that the obtained Co3 O4 was composed of separate nanoparticles with a mean size of 30 nm. The obtained Co3 O4 nanoparticles exhibited superior electrochemical property. Co3 O4 electrode exhibited a maximum specific capacitance of 189.1 F g −1 at the specific current of 0.2 A g −1 . Meanwhile, the Co3 O4 electrode possessed the high specific capacitance retention ratio at the current density ranging from 0.2 to 1.0 A g −1, thereby indicating that Co3 O4 electrode suited high-rate charge/discharge.