Ionic liquid-assisted in situ growth of a cobalt oxide composite and its application in supercapacitors and electrochemical biosensors. (25th October 2018)

• Record Type: Journal Article
• Authors: Li, Fajun; Ruan, Chaohui; Wang, Yang; Lei, Lixu
• Is Part Of: New journal of chemistry. Volume 42:Number 23(2018)
• Page Start: 18659
• Page End: 18666
• Publication Date: 2018-10-25
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c8nj04607g
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : [C16 MIM]CF3 COO and GO were used as template and 2D planar substrate for in situ growth of Co3 O4 NR-P/GO. Abstract : Cobalt(ii, iii ) oxide (Co3 O4 ) nanorods/reduced graphene oxide (Co3 O4 NR/RGO) composite has been successfully prepared via a reactable ionic liquid-assisted hydrothermal process and subsequent annealing. Here, the ionic liquid 1-hexadecyl-3-methylimid-azolium trifluoroacetate ([C16 MIM]CF3 COO) has been used as the template, co-solvent and reactant. Co3 O4 NR/RGO can be used as the electrode material in supercapacitor applications and the non-enzymatic electrochemical detection of glucose. It has been found that the Co3 O4 NR/RGO composite displays superior capacitive performance not only with high specific capacitance of 813.1 F g −1 at a current density of 1 A g −1, but also with excellent cycling stability. It can even detect glucose with a high sensitivity of 81.8 μA mM −1 and a remarkable low detection limit of 67 nM (S/N = 3).