Multi-Walled Carbon Nanotubes Functionalized with Carboxyl and Amide for Acetone detection at Room Temperature

Abstract:

The functionalization of multi-walled carbon nanotubes (CNT) with amide group is reported as an alternative to enhance response time, recovery time and sensitivity of detecting acetone gas. We have fabricated an interdigitated transducer (IDT) deposited with amide-functionalized CNT. The elemental compositional analysis was characterized using Energy Dispersion X-ray spectroscopy and CHNOS elemental analyzer. The detection of acetone gas was performed in room temperature and digital multimeter was employed to record the changes of resistivity of IDT upon exposure of acetone. Results showed that amide functional group increases sensitivity, shortens the response time as well as recovery time of the sensor.

• Periodical: Solid State Phenomena (Volume 317)
• Pages: 195-201
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.317.195
• Online since: May 2021
• Authors: Nurjahirah Janudin, Norli Abdullah, Faizah Md Yasin, Mohd Hanif Yaacob, Muhammad Zamharir Ahmad, Noor Azilah Mohd Kasim*
• Keywords: Acetone Sensor, Amide, Carbon Nanotubes, Dodecylamine

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