Open AccessMethanol sensing using Zn doped NiO nanoparticles
Author(s) -
Shailja,
K. J. Singh,
Ravi Chand Singh,
Sandeep Sharma
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1849/1/012034
Subject(s) - methanol , non blocking i/o , raman spectroscopy , nickel oxide , zinc , nickel , materials science , acetone , doping , nanoparticle , inorganic chemistry , adsorption , molecule , hydrogen , ammonia , ethanol , nuclear chemistry , nanotechnology , chemistry , organic chemistry , catalysis , metallurgy , physics , optoelectronics , optics
In the present study, we report gas sensing properties of Zinc doped nickel oxide nanoparticles. The Zn doped NiO samples were successfully synthesized by chemical co-precipitation method at room-temperature. Raman studies revealed the presence of defects such as nickel vacancies, which encourage the better sensing results. These defects are essential for providing active sites for adsorption of gaseous molecules and assists in improving the sensing parameters. Further, the sensor response of device has been found to be 7.2 when exposed to 100 ppm of methanol at 260 °C. Obtained Zn doped NiO sensor was found to be selective towards methanol as compared to other volatile compounds including, ethanol, acetone, ammonia and hydrogen.