Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 204, Issue -, Pages 159-166Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2014.07.102
Keywords
Electrochemical treatment; Glucose sensor; Nanoparticles; Ni foam; Nickel hydroxide; Non-enzymatic detection
Funding
- Ministry of Science and Technology of Taiwan
Ask authors/readers for more resources
A single layer of nickel hydroxide nanoparticles (Ni(OH)(2) NPs) was covered on the full surface of a porous Ni foam by simply applying an electrochemical cyclic voltammetric (CV) treatment on a bare Ni foam substrate for 100 cycles in 1.0 M NaOH solution. The surface morphology of the obtained Ni(OH)(2) NPs/Ni foam electrode was examined by scanning electron microscopy. The thickness of the Ni(OH)(2) NPs layer on the electrode was estimated by X-ray photoelectron spectroscopy with Ar+ ion etching. In CV measurement, the Ni(OH)(2) NPs/Ni foam electrode exhibited excellent electrocatalytic ability toward glucose in NaOH solution. The Ni(OH)2 NPs/Ni foam electrode was successfully used for the quantification of glucose by an amperometric method. The sensing parameters include a high sensitivity of 1,950.3 mu A/mM-cm(2), a linear range from 0.6 to 6.0 mM, a detection limit of 0.16 mu M, and an applied potential of 0.45 V (vs. Ag/AgCl/KCl sat'd). The excellent performances obtained in the interference test, the long-term durability test in atmosphere, and the reproducibility test of the Ni(OH)(2) NPs/Ni foam sensor indicate the applicability of the proposed electrode as a reliable non-enzymatic glucose sensor.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available