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The Effect of the Gaseous Environment on the Electrical Conductivity of Multi-Walled Carbon Nanotube Films over a Wide Temperature Range
- Source :
- Materials, Materials, Vol 13, Iss 3, p 510 (2020), Materials; Volume 13; Issue 3; Pages: 510
- Publication Year :
- 2020
- Publisher :
- MDPI, 2020.
-
Abstract
- The surrounding gas atmosphere can have a significant influence on the electrical properties of multi-walled carbon nanotube (CNT) ensembles. In this study, we subjected CNT films to various gaseous environments or vacuum to observe how such factors alter the electrical resistance of networks at high temperatures. We showed that the removal of adsorbed water and other contaminants from the surface under reduced pressure significantly affects the electrical conductivity of the material. We also demonstrated that exposing the CNT films to the hydrogen atmosphere (as compared to a selection of gases of inert and oxidizing character) at elevated temperatures results in a notable reduction of electrical resistance. We believe that the observed sensitivity of the electrical properties of the CNT films to hydrogen or vacuum at elevated temperatures could be of practical importance.
- Subjects :
- Materials science
Hydrogen
carbon nanotubes
thin films
electrical conductivity
chemistry.chemical_element
02 engineering and technology
Carbon nanotube
010402 general chemistry
lcsh:Technology
01 natural sciences
Article
law.invention
Condensed Matter::Materials Science
Adsorption
Electrical resistance and conductance
Electrical resistivity and conductivity
law
Oxidizing agent
General Materials Science
Thin film
lcsh:Microscopy
lcsh:QC120-168.85
lcsh:QH201-278.5
lcsh:T
Atmospheric temperature range
021001 nanoscience & nanotechnology
0104 chemical sciences
chemistry
Chemical engineering
lcsh:TA1-2040
13. Climate action
lcsh:Descriptive and experimental mechanics
lcsh:Electrical engineering. Electronics. Nuclear engineering
lcsh:Engineering (General). Civil engineering (General)
0210 nano-technology
lcsh:TK1-9971
Subjects
Details
- Language :
- English
- ISSN :
- 19961944
- Volume :
- 13
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Materials
- Accession number :
- edsair.doi.dedup.....79b5b5396b9ace083f7d83a94aee378d