Journal
APPLIED NANOSCIENCE
Volume 7, Issue 8, Pages 753-758Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13204-017-0619-2
Keywords
Spray pyrolysis; Cesium superoxide; Gas sensing
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In the present work, we synthesized cesium superoxide (CsO2) nanoparticles by solution-processed spray pyrolysis technique. The as-synthesized CsO2 nanoparticles were characterized through Raman spectroscopy, X-ray diffraction, scanning electron microscopy and ultraviolet-visible spectroscopy. The CsO2 nanoparticle-based gas sensor is more selective towards the carbon dioxide (CO2) gas. The sensor shows good gas sensing performance for CO2 gas. Gas sensing mechanism is dominated by the adsorption and desorption process. Through this paper, we studied another dimension of gas sensing process by employing superoxide for gas sensing. The sensing mechanism for cesium superoxide is explained by newly designed bridging oxygen-free mechanism''.
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