Synthesis, characterization, and properties of nickel–cobalt layered double hydroxide nanostructures

Xing, Chunxian, Musharavati, Farayi, Li, Hui, Zalezhad, Erfan, Hui, Oscar K. S. ORCID:, Bae, Sungchul and Cho, Bum-Yean (2017) Synthesis, characterization, and properties of nickel–cobalt layered double hydroxide nanostructures. RSC Advances, 7 (62). pp. 38945-38950. ISSN 2046-2069

[thumbnail of Published manuscript]
PDF (Published manuscript) - Published Version
Available under License Creative Commons Attribution.

Download (870kB) | Preview


Nickel–cobalt layered double hydroxides (Ni–Co-LDH) have recently been examined for their potential as battery-type hybrid supercapacitors made from metal hydroxide electrode materials, due to their unique spatial structure, excellent electrochemical activity, and good electrical conductivity. However, the main disadvantage restricting the application of Ni–Co-LDHs is their low electronic conductivity, which results in low capacitance. To address this problem, we used different concentrations of ammonium fluoride to control the Ni–Co-LDH surface morphology and direct growth on Ni foam (NF). We created Ni–Co-LDH composite electrode materials with different morphologies that showed large surface areas, high conductivity, and high electrochemical performance. Results showed that the samples prepared with ammonium fluoride additive had a higher specific capacity of about 1445 F g−1 at a current density of 2 A g−1, a good specific capacitance rate of about 59.5% from 2 A g−1 to 40 A g−1, and good capacity retention of up to 99% when the current density was enhanced to 30 A g−1, suggesting promise for future applications.

Item Type: Article
Faculty \ School: Faculty of Science > School of Mathematics
UEA Research Groups: Faculty of Science > Research Groups > Energy Materials Laboratory
Related URLs:
Depositing User: Pure Connector
Date Deposited: 26 Aug 2017 05:06
Last Modified: 22 Oct 2022 03:05
DOI: 10.1039/C7RA06670H


Downloads per month over past year

Actions (login required)

View Item View Item