Investigation on PANI/CuO nanocomposites for ammonia gas sensing applications

[Display omitted] •Simple chemical polymerization method is used to prepare PANI/CuO nanocomposites.•PANI/CuO NCs as luminescent materials due to its visible optical emissions.•PANI/CuO NCs as responsive ammonia sensor due to lower response/recovery time.•PANI/CuO NCs based gas sensor can provide a...

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Bibliographic Details
Published inMaterials letters Vol. 309; p. 131325
Main Authors Singh, Susheel K., Shukla, R.K., Kumar, Rajesh, Tripathi, U.K., Mishra, Sheo K.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 15.02.2022
Elsevier BV
Subjects
Ammonia
Copper oxides
FTIR
Gas sensors
Materials science
Nanocomposites
Photomicrographs
Polyaniline
Polyanilines
Recovery time
Room temperature
SEM
UV–visible
XRD
SEM
UV–visible
XRD
Polyaniline
PL
FTIR
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Summary:[Display omitted] •Simple chemical polymerization method is used to prepare PANI/CuO nanocomposites.•PANI/CuO NCs as luminescent materials due to its visible optical emissions.•PANI/CuO NCs as responsive ammonia sensor due to lower response/recovery time.•PANI/CuO NCs based gas sensor can provide a better solution for NH3 detection. A simple chemical polymerization method is used to prepare composites of polyaniline with various compositions of cupric-oxide (PANI/CuO) at room temperature. The structural and morphological analysis is performed by XRD and SEM micrographs. The optical characterizations are performed using FT-IR, UV–visible absorption, and PLspectroscopy. The sensing characteristics have been investigated by varying the ammonia concentration over a range of 100–2000 ppm. The response/recovery time of nanocomposites systems are found reduced as compared to PANI designates faster response of sensor confirms their suitability for gas sensors.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2021.131325