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

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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