Facile synthesis of palladium-decorated three-dimensional conducting polymer nanofilm for highly sensitive H2 gas sensor

Hydrogen gas is a topic of considerable interest because of its critical importance to various applications in the fuel cell, aerospace and automotive industries. However, because it is highly flammable at low concentrations and causes asphyxiation at higher concentrations, it is crucial to implemen...

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Bibliographic Details
Published in:Journal of materials science 2020-04, Vol.55 (12), p.5156-5165
Main Authors: Cho, Kyung Hee, Yu, Haejun, Lee, Jun Seop, Jang, Jyongsik
Format: Article
Language:English
Subjects:
Aerospace industry
Automotive fuels
Characterization and Evaluation of Materials
Chemical synthesis
Chemistry and Materials Science
Classical Mechanics
Conducting polymers
Crystallography and Scattering Methods
Electronic Materials
Flammability
Fuel cells
Gas sensors
Hydrogen
Low concentrations
Materials Science
Palladium
Platinum
Polymer Sciences
Polypyrroles
Solid Mechanics
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Summary:Hydrogen gas is a topic of considerable interest because of its critical importance to various applications in the fuel cell, aerospace and automotive industries. However, because it is highly flammable at low concentrations and causes asphyxiation at higher concentrations, it is crucial to implement an appropriate system to monitor hydrogen gas. In this report, we illustrate the facile synthesis of palladium-decorated three-dimensional conducting polymer nanofilms (PPyPds) for the detection of hydrogen gas. PPyPds are formed directly on the electrode through a modified electrodeposition process. The resulting PPyPd-based sensor is highly sensitive (down to 5 ppm) and binds hydrogen reversibly at ambient conditions, owing to the uniform distribution of palladium on the three-dimensional polypyrrole surface.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-020-04370-7