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Response of TiO₂/MWCNT/B₂O₃ gas sensor to hydrogen using different organic binder


Mohd Chachuli, Siti Amaniah and Hamidon, Mohd Nizar and Mamat, Md Shuhazlly and Ertugrul, Mehmet and Abdullah, Nor Hapishah (2019) Response of TiO₂/MWCNT/B₂O₃ gas sensor to hydrogen using different organic binder. Materials Science in Semiconductor Processing, 99 (15). pp. 140-148. ISSN 1369-8001


A binder influences the sensitivity, resistivity and optimal operating temperature of a gas sensor, which plays an important role in gas sensing. This work compared the sensitivity of the TiO₂/MWCNT/B₂O ₃ gas sensor to hydrogen with the addition of different organic binders, namely linseed oil and ethyl cellulose, to TiO₂/MWCNT/B₂O ₃ paste. Both pastes were deposited on alumina substrate using the screen-printing method and annealed at 500 °C. The sensing films of gas sensor, OBL and OBE were characterized by field emission scanning electron microscopy (FESEM), Energy dispersive x-ray (EDX), X-ray diffraction (XRD) Raman Spectroscopy and Brunauer-Emmett-Teller (BET). The gas sensors were also exposed to different concentrations of hydrogen (100–1000 ppm) at various operating temperature (100 °C, 200 °C and 300 °C). The obtained results revealed that ethyl cellulose-based gas sensor achieves better sensitivity, whereas linseed oil-based gas sensor has better conductivity and recovery characteristic.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institute of Advanced Technology
DOI Number: https://doi.org/10.1016/j.mssp.2019.04.009
Publisher: Elsevier
Keywords: Organic binder; Linseed oil; Paste; Gas sensor; TiO₂/MWCNT/B2O₃
Depositing User: Mr. Sazali Mohamad
Date Deposited: 16 Oct 2020 13:48
Last Modified: 16 Oct 2020 13:48
Altmetrics: http://www.altmetric.com/details.php?domain=psair.upmedu.my&doi=/10.1016/j.mssp.2019.04.009
URI: http://psasir.upm.edu.my/id/eprint/82004
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