Porous nickel oxide pseudo-capacitive materials fabricated by Ni-Schiff base nanostructures template. (15th October 2016)

• Record Type: Journal Article
• Authors: Wang, Kuaibing; Jin, Bing; Lu, Aimin; Luo, Xuefei; Shi, Ying
• Is Part Of: Polyhedron. Volume 117(2016)
• Page Start: 117
• Page End: 125
• Publication Date: 2016-10-15
• Subjects: Coordination polymer particles -- Nickel oxide -- Pseudo-capacitance -- Schiff base -- Energy storage; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2016.05.058
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: NiO nanostructures have been synthesized from Schiff-base building blocks. Among them, NiO nanospheres show higher capacitance than the other two electrodes with 100% retained capacitance after 1000 cycles at a constant scan rate. Abstract: Three nanoscale Ni-Schiff-base coordination polymer particles have been firstly prepared in poor solvent (DMF) through a precipitation method. XRD, TGA and EA results show that as-synthesized compounds are either amorphous or crystalline. High temperature annealing of these Ni-based compounds can result in pseudo-capacitive NiO electrodes. Series of electrochemical measurements illustrated that the as-prepared NiO material, especially for NiO nanospheres could deliver a maximum specific capacitance of 153 F g −1 and good stability over 1000 cycles with the capacitance retention of 100%, indicating the morphology and resistance effect on the diffusion-controlled redox reaction between the OH − ions and the NiO samples.