Jump to main content
Jump to site search

Issue 10, 2012
Previous Article Next Article

Free-standing nickel oxide nanoflake arrays: synthesis and application for highly sensitive non-enzymatic glucose sensors

Author affiliations

Abstract

We report a seed-mediated hydrothermal growth of free-standing nickel hydroxide [Ni(OH)2] and nickel oxide (NiO) nanoflake arrays and their implementation as electrodes for non-enzymatic glucose sensors. Ni(OH)2 nanoflakes were converted into porous NiO nanoflakes upon thermal annealing in air at temperatures of 300 °C or above. NiO nanoflake-arrayed sensors achieve an excellent glucose sensitivity of ∼8500 μA cm−2 mM−1 and a low detection limit of 1.2 μM glucose at an applied bias of 0.5 V vs. Ag/AgCl. The fabrication of the nanoflake electrode avoids the use of polymer binders representing additional advantage over the conventional powder based glucose sensors. Furthermore, they show good specificity to glucose in the presence of ascorbic acid, D-lactose and D-fructose.

Graphical abstract: Free-standing nickel oxide nanoflake arrays: synthesis and application for highly sensitive non-enzymatic glucose sensors

Back to tab navigation

Supplementary files

Publication details

The article was received on 08 Feb 2012, accepted on 11 Mar 2012 and first published on 14 Mar 2012


Article type: Paper
DOI: 10.1039/C2NR30302G
Citation: Nanoscale, 2012,4, 3123-3127
  •   Request permissions

    Free-standing nickel oxide nanoflake arrays: synthesis and application for highly sensitive non-enzymatic glucose sensors

    G. Wang, X. Lu, T. Zhai, Y. Ling, H. Wang, Y. Tong and Y. Li, Nanoscale, 2012, 4, 3123
    DOI: 10.1039/C2NR30302G

Search articles by author

Spotlight

Advertisements