Manipulating the Temperature of Sulfurization to Synthesize α-NiS Nanosphere Film for Long-Term Preservation of Non-enzymatic Glucose Sensors

Nanoscale Research Letters

卷:13

Po-Feng Wu¹  Yi-Jui Liu²  Jen-Bin Shi³  Fu-Chou Cheng⁴  Ming-Way Lee⁵  Cheng-Ming Peng⁶  Bo-Chi Zheng⁶  Hsien-Sheng Lin⁶  Hsuan-Wei Lee⁶ 

[1] College of General Education;

[2] Department of Automatic Control Engineering, Feng Chia University;

[3] Department of Electronic Engineering, Feng Chia University;

[4] Department of Medical Research, Taichung Veterans General Hospital;

[5] Department of Physics, Institute of Nanoscience, National Chung Hsing University;

[6] Ph.D. Program in Electrical and Communications Engineering, Feng Chia University;

关键词: Nanosphere;    α-NiS;    Electrodeposited;    Non-enzymatic;    Glucose;    Sensor;   

DOI  :  10.1186/s11671-018-2511-8

来源: DOAJ

【 摘 要 】

Abstract In this study, alpha nickel sulfide (α-NiS) nanosphere films have been successfully synthesized by electroplating the nickel nanosheet film on the indium tin oxide (ITO) glass substrate and sulfuring nickel-coated ITO glass substrate. First, we electrodeposited the nickel nanosheet films on the ITO glass substrates which were cut into a 0.5 × 1 cm2 size. Second, the nanosheet nickel films were annealed in vacuum-sealed glass ampoules with sulfur sheets at different annealing temperatures (300, 400, and 500 °C) for 4 h in vacuum-sealed glass ampoules. The α-NiS films were investigated by using X-ray diffraction (XRD), variable vacuum scanning electron microscopy (VVSEM), field emission scanning electron microscopy/energy dispersive spectrometer (FE-SEM/EDS), cyclic voltammogram (CV), electrochemical impedance spectroscopy (EIS), ultraviolet/visible/near-infrared (UV/Visible/NIR) spectra, and photoluminescence (PL) spectra. Many nanospheres were observed on the surface of the α-NiS films at the annealing temperature 400 °C for 4 h. We also used the high-resolution transmission electron microscopy (HR-TEM) for the analysis of the α-NiS nanospheres. We demonstrated that our α-NiS nanosphere film had a linear current response to different glucose concentrations. Additionally, our α-NiS nanosphere films were preserved at room temperature for five and a half years and were still useful for detecting glucose at low concentration.

【 授权许可】

Unknown