2024-03-28T11:58:30Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00019050
2022-12-14T04:14:42Z
1309:1310
The Chemical Deposition Method for the Decoration of Palladium Particles on Carbon Nanofibers with Rapid Conductivity Changes
Lee, Hoik
Duy-Nam, Phan
Kim, Myungwoong
Sohn, Daewon
Oh, Seong-Geun
Kim, Seong Hun
Kim, Ick Soo
carbon nanofiber
hydrogen sensor
palladium-doped carbon nanofibers
conductivity change
volume change
chemical deposition
Palladium (Pd) metal is well-known for hydrogen sensing material due to its high sensitivity and selectivity toward hydrogen, and is able to detect hydrogen at near room temperature. In this work, palladium-doped carbon nanofibers (Pd/CNFs) were successfully produced in a facile manner via electrospinning. Well-organized and uniformly distributed Pd was observed in microscopic images of the resultant nanofibers. Hydrogen causes an increment in the volume of Pd due to the ability of hydrogen atoms to occupy the octahedral interstitial positions within its face centered cubic lattice structure, resulting in the resistance transition of Pd/CNFs. The resistance variation was around 400%, and it responded rapidly within 1 min, even in 5% hydrogen atmosphere conditions at room temperature. This fibrous hybrid material platform will open a new and practical route and stimulate further researches on the development of hydrogen sensing materials with rapid response, even to low concentrations of hydrogen in an atmosphere.
Article
NANOMATERIALS. 6(12):226 (2016)
journal article
MDPI AG
2016-12
application/pdf
NANOMATERIALS
12
6
226
2079-4991
https://soar-ir.repo.nii.ac.jp/record/19050/files/nanomaterials-06-00226.pdf
eng
10.3390/nano6120226
https://doi.org/10.3390/nano6120226
Copyright © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).