In:
Journal of The Electrochemical Society, The Electrochemical Society, Vol. 167, No. 12 ( 2020-01-09), p. 126510-
Kurzfassung:
Herein, several nitrogen-doped nano-crystalline graphite films (N-NCG) were prepared via plasma-enhanced chemical vapor deposition (PECVD); nano-crystalline graphite (NCG) was doped by adding ammonia gas during the PECVD growth. To develop electrochemical probes that can compete with glassy carbon (GC) electrodes for anthracene sensing, the N-NCG electrodes were systematically investigated using different techniques, including atomic force microscopy (AFM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) analysis, Raman spectroscopy, cyclic voltammetry (CV), and differential pulsed voltammetry (DPV). The obtained sensors were tested against anthracene in an acetonitrile/water mixture (80/20 v/v) wherein the N-NCG 3 and N-NCG 5 electrochemical probes showed analytical features comparable with those of the GC electrode. The best competitor for GC was N-NCG 3 in terms of linear working range (2.5 μ M–1 mM) and sensitivity (y = 6.09 × 10 −6 + 1.21 x, r 2 = 0.9997 and y = 1.23 × 10 −5 + 0.84 x, r 2 = 0.9959 for GC and N-NCG 3, respectively).
Materialart:
Online-Ressource
ISSN:
0013-4651
,
1945-7111
DOI:
10.1149/1945-7111/abb1d4
Sprache:
Unbekannt
Verlag:
The Electrochemical Society
Publikationsdatum:
2020