Development of Low-ppm CO Sensors Using Pristine CeO₂ Nanospheres with High Surface Area.

ABSTRACT: Mesoporous CeO₂ nanospheres with appreciably high surface area are prepared using reversed micelles by a water-in-oil microemulsion method. The structural morphology and semiconducting properties of the nanoparticles are thoroughly investigated using X-ray diffraction, field effect scanning electron microscopy, transmission electron microscopy, and UV-visible spectroscopic techniques. Even after high-temperature calcination, the morphological retention of the material is apparent by electron microscopy. The deployment of undoped CeO₂ nanospheres for the detection of low-ppm CO yields superior performances in terms of sensitivity, response-recovery times, and selectivity compared to those of other sensors of the same genre. These CO sensors exhibit ∼ 52% sensitivity wi

SUBMITTER: Majumder D 

PROVIDER: S-EPMC6641583 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature