Highly sensitive hydrogen sensor based on Pd-functionalized titania nanotubes prepared in water-contained electrolyte

Tao Wu, Xiongbang Wei, Xiaohui Yang, Yong Quan, Guodong Lv, Yan Shi, Shuanghong Wu, Shibin Li, Zhi Chen

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

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 languageEnglish
Pages (from-to)1428-1432
Number of pages5
JournalJournal of Materials Science: Materials in Electronics
Volume28
Issue number2
DOIs
StatePublished - 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

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