The influence of preparation conditions on nanoporous nickel-based supercapacitor electrode material obtained by anodisation. (May 2015)

• Record Type: Journal Article
• Authors: Wang, L.; Wang, L. Y.; Yu, F.; Li, W. F.; Zhang, G. G.
• Is Part Of: Materials research innovations. Volume 19:Number 2(2015)
• Page Start: S2-52
• Page End: S2-57
• Publication Date: 2015-05
• Subjects: Materials -- Research -- Periodicals; Matériaux -- Recherche -- Périodiques; 620.1105
• DOI: 10.1179/1432891715Z.0000000001311
• Languages: German
• ISSNs: 1432-8917

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <p>In this report, nanoporous anodic nickel-based thin film was prepared by a facile electrochemical approach in a fluoride containing electrolyte. The morphology, crystalline structure and electrochemical performance of the as-anodised film were investigated by scanning electron microscope, X-ray diffraction and an electrochemical workstation. The influence of processing conditions such as anodisation voltage, fluorine ion concentration and acid concentration were studied and found to have a significant effect on the capacitance of as-anodised nickel-based film. Meanwhile, the time of the anodisation is also a key factor in the performance of the nickel-based film. The specific capacitance of anodic nanoporous thin film prepared at optimised condition (1 wt-% NH₄F + 80 wt-% H₃PO₄, 3·5 V for 45 minutes) reached 225 mF cm⁻² at the scan rate of 100 mV s⁻¹.</p> </abstract>