Synthesis and characterization of CuO nanodisks for high-sensitive and selective ethanol gas sensor applications

Ahmad Umar, Jong Heun Lee, Rajesh Kumar, O. Al-Dossary

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10 Citations (Scopus)


Herein, the fabrication and characterization of highly sensitive and selective ethanol gas sensor based on CuO nanodisks is reported. The CuO nanodisks were synthesized by facile hydrothermal process and detailed characterization revealed the well-crystallinity, high-purity and high density growth of the prepared material. To fabricate the ethanol gas sensor, the prepared nanodisks were coated on alumina substrate. The fabricated sensor exhibited high-sensitivity and the recorded gas response (resistance-ratio), response time by (τres) and recovery time (τrecov) were 6.2, 119 and 35 s, respectively for 100 ppm of C2H5OH at 300 °C. Further, the fabricated sensor shows high selectivity towards ethanol gas compared to H2 and CO gases.

Original languageEnglish
Pages (from-to)1455-1459
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Issue number2
Publication statusPublished - 2017



  • CuO nanodisks
  • Ethanol
  • Gas sensor
  • Hydrothermal

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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