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- W4220794507 abstract "Abstract By reducing the aqueous mixture of electrostatically modified multi-walled carbon nanotubes (f-MWCNT) and palladium (Pd) using NaBH 4 , a nanocomposite was synthesized. The syllable structure of the f-MWCNT and f-MWCNT/ Pd nanocomposite was investigated by analytical tools FESEM and TEM respectively. f-MWCNTs matrix reinforced with Pd nanoparticles are utilized for sensing CH 4 with its dilution varying from 0.5-100 ppm in air at room temperature (RT=27°C). The f-MWNT/Pd nanocomposite-based sensor for CH 4 gas show several merits over conventional catalytic beads and MOS based sensors in context of reduced size, reduced power consumption and ease of fabrication. At room temperature, the nanocomposite's temporal electrical responses to CH 4 were measured. It exhibited a response magnitude of ∼20-45.71% with a small variation of ±2% towards 0.5-100 ppm CH 4 . Furthermore, the responses were extremely reversible and repeatable, implying that it may be used to detect CH 4 at ambient temperature. It has also been demonstrated experimentally that an excellent response time (≈ 20 s) and the recovery time (≈ 25 s) for these devices were recorded for CH 4 . The influence of external temperature and humidity on the CH 4 sensor was also investigated in order to assess its long-term stability and self-life. The results showed that very small change is observed over a wide of temperature from 25-70 o C and that for %Rh from 20-90%. Therefore, the reported CH4 sensor absolutely demonstrated long-term stability at ambient conditions and hence, these devices can prove to be ideal for CH 4 leakage detection for practical real time applications. A sensing mechanism by which CH 4 is detected by f-MWCNT/Pd nanocomposite is also elaborately discussed." @default.
- W4220794507 created "2022-04-03" @default.
- W4220794507 creator A5012355980 @default.
- W4220794507 date "2022-04-01" @default.
- W4220794507 modified "2023-10-16" @default.
- W4220794507 title "Electrostatically functionalized CVD grown multiwalled carbon nanotube/ palladium nanocomposite (MWCNT/Pd) for CH4 detection at room temperature" @default.
- W4220794507 doi "https://doi.org/10.21203/rs.3.rs-1512973/v1" @default.
- W4220794507 hasPublicationYear "2022" @default.
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