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Selective room temperature ammonia gas sensor using nanostructured ZnO/CuO@graphene on paper substrate
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In this article, the authors have grown ZnO/CuO nanoflowers on graphene printed paper substrates by the hydrothermal method and showed that these nanoflower structures have higher sensing performance in the presence of ammonia.Abstract:
In this work, we have grown ZnO/CuO nanoflowers on graphene printed paper substrates by the hydrothermal method. The hypothesis of the present work is the role of ZnO and CuO composited graphene structures as affordable substrates for room temperature ammonia gas sensor. To fabricate the conductive substrate, the biomass derived graphene has been formulated as conductive ink and printed (20 µm) on the paper substrate. The optical, structural, and morphological studies confirm the formation of hierarchical nanoflower like ZnO/CuO@graphene substrate. The chemiresistive gas sensor studies evident that, the ZnO/CuO@graphene substrates have higher sensing performance in the presence of ammonia (4.9%) for the concentration as low as 5 ppm at room temperature. It also shows a quick response and recovery time of 4.1 s and 2 s, respectively. Our present method will be an effective methodology for the fabrication of cost-effective and rapid detection of ammonia gas in the ambient environment and can be also further suitable for non-invasive earlier diagnosis of diseases from exhaled breath.read more
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References
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Journal ArticleDOI
Prediction of Flatband Potentials at Semiconductor‐Electrolyte Interfaces from Atomic Electronegativities
TL;DR: The electron affinities of metal oxide semiconductors that have been used as anodes in photoelectrochemical cells are calculated using the atomic electronegativities of the constituent atoms as mentioned in this paper.
Journal ArticleDOI
Volatile organic compounds in breath as markers of lung cancer: a cross-sectional study.
Michael Phillips,Kevin Gleeson,J. Michael B. Hughes,Joel Greenberg,Renee N. Cataneo,Leigh Baker,W Patrick McVay +6 more
TL;DR: A combination of 22 breath VOCs, predominantly alkanes, alkane derivatives, and benzene derivatives, discriminated between patients with and without lung cancer, regardless of stage.
Journal ArticleDOI
Basic Aspects and Challenges of Semiconductor Gas Sensors
Yasuhiro Shimizu,Makoto Egashira +1 more
Journal ArticleDOI
A new epirubicin biosensor based on amplifying DNA interactions with polypyrrole and nitrogen-doped reduced graphene: Experimental and docking theoretical investigations
Arash Khodadadi,Ehsan Faghih-Mirzaei,Hassan Karimi-Maleh,Alireza Abbaspourrad,Shilpi Agarwal,Vinod Kumar Gupta +5 more
TL;DR: In this paper, a label-free DNA-based biosensor was fabricated for the analysis of epirubicin in biological samples, and the changes in the electrode signal were used for the determination of Epirubicain.
Journal ArticleDOI
Sensitivity enhancement of ammonia gas sensor based on Ag/ZnO flower and nanoellipsoids at low temperature
R. Sankar Ganesh,R. Sankar Ganesh,M. Navaneethan,M. Navaneethan,Vithoba L. Patil,S. Ponnusamy,Chellamuthu Muthamizhchelvan,Shinji Kawasaki,Pramod S. Patil,Yasuhiro Hayakawa +9 more
TL;DR: In this paper, high sensitivity ammonia gas sensor based on Ag/ZnO composite (SZO) nanostructures and their structural, optical, morphological and gas sensing properties were investigated.
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