Abstract
Highly sensitive hydrogen sensor based on palladium (Pd) nano-rings supported by titania nanotubes (TNTs) substrate has been investigated at room temperature. The TNTs substrate was prepared in various mass fraction of water contents in electrolyte from 5 to 20 %. The water content in the electrolyte increased the tube-diameter and the interstice among tubes. Pd nano-rings were deposited on TNTs substrates using DC magnetron sputtering. The sensor exhibited excellent performance at hydrogen concentrations from 0.05 to 1.6 %. We researched the detection performance of hydrogen sensors made by different TNTs substrates. When the water content was 17.5 wt%, the sensor showed a high sensitivity of 88 % at 1.6 % hydrogen concentration.
| Original language | English |
|---|---|
| Pages (from-to) | 1428-1432 |
| Number of pages | 5 |
| Journal | Journal of Materials Science: Materials in Electronics |
| Volume | 28 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jan 1 2017 |
Bibliographical note
Funding Information:This work was supported by National Natural Science Foundation of China under Grant Nos. 61474016 and 61101030, 61371046, 61421002, 61405026. ZC was also partially supported by University of Kentucky.
Publisher Copyright:
© 2016, Springer Science+Business Media New York.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering