Synthesis and characterization of highly selective and sensitive Sn/SnO2/N-doped carbon nanocomposite (Sn/SnO2@NGC) for sensing toxic NH3 gas

Abdullha M. Al-Enizi, Mu Naushad, Ala'a H. Al-Muhtaseb, Ruksana, Saad M. Alshehri, Z. A. Alothman, Tansir Ahamad

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

In the present study, a facial synthesis of Sn/SnO2 nanoparticles embedded in nitrogen doped carbon based nanocomposites has been disclosed which was used as a fast and high-performance NH3 gas sensor. The prepared nanocomposite was characterized by various analytical technique including FTIR, TGA/DTA, Raman, XRD, FESEM, TEM/HRTEM and XPS. The presence of both Sn and SnO2 nanoparticles in carbon matrix are supported by FTIR, Raman and XRD. The XRD analysis showed the tetragonal crystal phase of SnO2 nanoparticles, and the BET results revealed 148.9 m2 g−1 surface area of the nanocomposite. Furthermore, SEM image showed that Sn and SnO2 nanoparticles were well dispersed in the nitrogen doped carbon matrix. The fabricated sensor was characterized against various concentration of NH3 and the results indicated that the prepared sensor showed excellent responses at 65 °C working temperature, with 300 ppm concentration of NH3 and the sensitivity was observed 172.70. Additionally, the fabricated sensor also showed quick response and the recovery time of 60 s and 55 s, respectively. The fabricated sensor with its quick response and recovery time, good repeatability, excellent selectivity, and slight humidity effects has the potential and could be used as NH3 sensor on industrial scale.

Original languageEnglish
Pages (from-to)58-66
Number of pages9
JournalChemical Engineering Journal
Volume345
DOIs
Publication statusPublished - Aug 1 2018

Fingerprint

Poisons
Nanocomposites
Carbon
Gases
sensor
carbon
Sensors
Nanoparticles
gas
X-ray diffraction
Nitrogen
Recovery
Chemical sensors
matrix
nitrogen
Differential thermal analysis
Atmospheric humidity
X ray photoelectron spectroscopy
X-ray spectroscopy
transmission electron microscopy

Keywords

  • Carbon matrix
  • Gas sensor
  • Nanocomposite
  • NH

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this

Synthesis and characterization of highly selective and sensitive Sn/SnO2/N-doped carbon nanocomposite (Sn/SnO2@NGC) for sensing toxic NH3 gas. / Al-Enizi, Abdullha M.; Naushad, Mu; Al-Muhtaseb, Ala'a H.; Ruksana; Alshehri, Saad M.; Alothman, Z. A.; Ahamad, Tansir.

In: Chemical Engineering Journal, Vol. 345, 01.08.2018, p. 58-66.

Research output: Contribution to journalArticle

Al-Enizi, Abdullha M. ; Naushad, Mu ; Al-Muhtaseb, Ala'a H. ; Ruksana ; Alshehri, Saad M. ; Alothman, Z. A. ; Ahamad, Tansir. / Synthesis and characterization of highly selective and sensitive Sn/SnO2/N-doped carbon nanocomposite (Sn/SnO2@NGC) for sensing toxic NH3 gas. In: Chemical Engineering Journal. 2018 ; Vol. 345. pp. 58-66.
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