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Low-Dimensional Palladium on Graphite-on-Paper Substrate for Hydrogen Sensing.
- Source :
-
Sensors (14248220) . May2022, Vol. 22 Issue 10, p3926-3926. 10p. - Publication Year :
- 2022
-
Abstract
- To stabilize the detection signal of palladium-based hydrogen sensors on paper substrates, a graphite intermediate layer was painted on the surface of paper. The graphite-on-paper (GOP) substrate offers advantages such as good thermo-electrical conductivity, low cost, and uncomplicated preparation technology. Quasi-1-dimensional palladium (Pd) thin films with 8 nm and 60 nm thicknesses were deposited on the GOP substrates using the vacuum evaporation technique. Thanks to the unique properties of the GOP substrate, a continuous Pd microfiber network structure appeared after deposition of the ultra-thin Pd film. Additionally, the sensing performance of the palladium-based hydrogen sensor was not affected, whether using GOP or paper substrate at 25 °C. Surprisingly, heating-induced loss of sensitivity was restrained due to the increased electrical conductivity of the GOP substrate at 50 °C. [ABSTRACT FROM AUTHOR]
- Subjects :
- *HYDROGEN detectors
*PALLADIUM
*SIGNAL detection
*ELECTRIC conductivity
*THIN films
Subjects
Details
- Language :
- English
- ISSN :
- 14248220
- Volume :
- 22
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Sensors (14248220)
- Publication Type :
- Academic Journal
- Accession number :
- 157239855
- Full Text :
- https://doi.org/10.3390/s22103926