WSEAS Transactions on Environment and Development
Print ISSN: 1790-5079, E-ISSN: 2224-3496
Volume 21, 2025
Flexible Carbon Nanotube Hydrogen Gas Sensor based on PET Substrate
Authors: , , , , , , ,
Search Articles
Abstract: This study presents a cost-effective and straightforward approach for fabricating a highly effective sensor to hydrogen (H2) gas using carbon nanotubes (CNTs), which were synthesized by a conventional microwave oven. To optimize CNT properties, a series of five purification processes were employed to eliminate impurities such as metal particles and support material from the carbon nanotubes produced. Then CNT was deposited onto a polyethylene thermal (PET) substrate through the application of a dielectrophoretic method. The gas sensors which fabricated have many significant exceptional characteristics, including high flexibility, remarkable conformability, and cost-effectiveness. The carbon nanotubes (CNTs) demonstrated significant sensitivity when exposed to H2 gas at room temperature (RT). At a concentration of 140 parts per million (ppm) of H2, the CNTs exhibited a remarkable sensitivity of up to 15%.
Keywords:
CNT, Hydrogen, PET gas sensor, microwave, flexible, nanotube, microwave, room temperature, sensitivity
Pages: 1403-1414
DOI: 10.37394/232015.2025.21.115