Recent advances in the development of carbon/metal oxides nanohybrids for enhanced H2S detection: a review

Hydrogen sulfide (H 2 S) is a poisonous gas and corrosive with a characteristic rotten egg smell. Exposure to a higher concentration of H 2 S gas leads to death. Research groups across the globe have been working on developing a gas sensor composed of novel sensing materials to monitor deadly H 2 S...

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Bibliographic Details
Published in:Journal of the Iranian Chemical Society 2023-05, Vol.20 (5), p.1007-1022
Main Authors: Sureshkumar, S., Rajakumari, S., Manonmani, R.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Biochemistry
Chemistry
Chemistry and Materials Science
Gas sensors
Graphene
Hydrogen sulfide
Inorganic Chemistry
Metal oxides
Multi wall carbon nanotubes
Organic Chemistry
Physical Chemistry
Review
Sensitivity enhancement
Single wall carbon nanotubes
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Summary:Hydrogen sulfide (H 2 S) is a poisonous gas and corrosive with a characteristic rotten egg smell. Exposure to a higher concentration of H 2 S gas leads to death. Research groups across the globe have been working on developing a gas sensor composed of novel sensing materials to monitor deadly H 2 S gas for over a decade. Carbon-based materials such as single-wall carbon nanotubes, multi-wall carbon nanotubes, graphene, and graphene derivatives have been incorporated with metal oxides to improve H 2 S gas sensing properties. Carbon-based composites have unique physicochemical properties which provide the sensor possessing superior sensitivity, selectivity, stability, quick response time, etc. This review highlights the importance of H 2 S sensors based on rGO/MOx and CNT/MOx, their enhanced sensitivity and selectivity to H 2 S.
ISSN:1735-207X
1735-2428
DOI:10.1007/s13738-023-02742-9