NiO@CNTs wrapped graphene oxide nanohybrid towards simultaneous electrochemical detection of ascorbic acid and uric acid
Inorganic Chemistry Communications, vol.179, 2025 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 179
- Publication Date: 2025
- Doi Number: 10.1016/j.inoche.2025.114774
- Journal Name: Inorganic Chemistry Communications
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, Chimica, DIALNET
- Keywords: Biosensing, CNTs, Electrocatalyst, Graphene oxide, Nanohybrid
- Süleyman Demirel University Affiliated: Yes
Abstract
Herein, a nanohybrid composed of Nickel oxide nanoparticle modified carbon nanotubes (NiO@CNTs) wrapped via graphene oxide sheets has been synthesized via simple hydrothermal method and utilized for the simultaneous electrochemical detection of ascorbic acid (AA) and uric acid (UA). The structural properties of nanocomposite were characterized using Scanning Electron Microscopy, and X-ray Diffraction pattern and Energy Dispersive X-rays Spectroscopy. Electrochemical investigations toward the sensing of fabricated material exhibited well-defined peaks at 0.2 V for AA and −0.03 V for UA. Chronoamperometric studies were also performed which showed the distinct increment in the current with the successive addition of analyte at the specified applied potential. Linear calibration curves for AA and UA were obtained with a lower detection limit of 0.17 mM and 0.06 mM, and a higher sensitivity of 14.62 µA/mM and 15.61 µA/mM, indicating that the synthesized nanohybrid could be a promising material for the electrochemical sensing of biomolecules.