SYNTHESIS OF NANOTUBULAR NiO-CNT COMPOSITE AND ITS APPLICATION IN TEMPERATURE INDEPENDENT CO2 GAS SENSORS FABRICATED USING INTERDIGITATED SILVER ELECTRODE

Digest Journal of Nanomaterials and Biostructures

R. George¹ 

关键词: Nanotubular composite;    Hydrothermal synthesis;    Nickel Oxide;    Multiwalled Carbon;    Nanotubes;    Interdigitated Electrode;   

DOI  :  

学科分类：生物技术

来源: Institute of Materials Physics

【 摘 要 】

A nanotubular NiO/CNTs composite is by tethering NiO onto the surface of the CNTs and subsequent chemical deposition by simple hydrothermal method. CNTs increase the electrochemical utilization of metal oxide as it can provide a great reaction site because of the large specific area and high electronic conductivity. The sensor is fabricated on flexible PET substrate using silver material for making the interdigitated electrode and embedding the highly conductive sensing material on it to form the electrical contact The gas response was found to be linear between CO2 concentrations of 1000–4000 ppm, with a high sensitivity of 6.5% at room temperature when the concentration of ambient CO2 gas was 4000 ppm.

【 授权许可】

Unknown