TAGRA 2024

Chemical-based gas sensors typically have good sensitivity to the target gas and can detect a variety of gases. However, after being exposed to the target gas, certain chemical-based gas sensors either did not recover at all or did not recover adequately. It is believed that the performance of a chemical-based gas sensor, notably its recovery characteristic, can be impacted by the binder utilized, according to the literature. Thus, this study proposes a novel organic binder for a chemical-based gas sensor, specifically for TiO2 gas sensors. The novel organic binder comprised three elements: terpineol, linseed oil, and ethyl cellulose. The novel binder has been tested in a TiO2 gas sensor and exposed to carbon dioxide at room temperature. The TiO2 gas sensor showed high performance in terms of sensing response, recovery characteristics, and repeatability properties. T1S1 is chosen as the most efficient fabricated gas sensor with sensing response, response time and recovery time were approximately 2.16, 119.238s and 32.064s respectively. This novel organic binder also can be applied in chemical-based gas sensors for any target gas.