Microstructured prealloyed Titanium-Nickel powder as a novel nonenzymatic hydrogen peroxide sensor


Kazici H. C., Çağlar A., Aydoğmuş T., Aktaş N., Kivrak H.

JOURNAL OF COLLOID AND INTERFACE SCIENCE, cilt.530, ss.353-360, 2018 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 530
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.jcis.2018.06.079
  • Dergi Adı: JOURNAL OF COLLOID AND INTERFACE SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.353-360
  • Anahtar Kelimeler: Microstructured TiNi, Alloy, Hydrogen peroxide, Sensor, Hair coloring, Amperometry, CORE-SHELL NANOPARTICLES, CARBON-PASTE ELECTRODE, AG NANOPARTICLES, ELECTROCATALYTIC REDUCTION, ELECTROCHEMICAL DETECTION, SUBSEQUENT DECORATION, GRAPHENE OXIDE, H2O2, GLUCOSE, NANOSHEETS
  • Van Yüzüncü Yıl Üniversitesi Adresli: Evet

Özet

At present, commercial pure Titanium (Ti) and microstructured pre-alloyed Titanium-Nickel (TiNi) powders are employed as a sensitive electrochemical hydrogen peroxide (H2O2) sensor. Surface characterization of these materials are performed by x-ray diffraction (XRD) and scanning electron microscopy (SEM). The electrochemical characterization is achieved via cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS) on Ti and TiNi modified glassy carbon electrode (GCE). The electrochemical behavior of H2O2 at the pure Ti/GCE and microstructure pre-alloyed TiNi/GCE are studied by CV in 0.1 M phosphate buffer solution (PBS) containing as the supporting electrolyte. In addition, CA is employed for the determination of H2O2 at the applied potential of 0 V vs. Ag/AgCl. The sensor has a linear response range of 0.5-17.5 mM with a sensitivity of 280 mu A mM(-1) cm(-2). Moreover, the limit of detection (LOD) and limit of quantification (LOQ) are 0.5 mu M and 1.7 mu M, respectively. The electrochemical sensor exhibits fast and selective responses to H2O2 concentration. The applicability of the sensor is checked using a hair coloring as a real sample with satisfactory results. (C) 2018 Elsevier Inc. All rights reserved.