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Vanadium-doped tin oxide porous nanofibers: Enhanced responsivity for hydrogen detection

  • Xiuru Xu*
  • , Min Yin
  • , Na Li
  • , Wei Wang
  • , Bolun Sun
  • , Ming Liu
  • , Dongwei Zhang
  • , Zhenyu Li
  • , Ce Wang
  • *Corresponding author for this work
  • Peking University
  • CAS - Shanghai Advanced Research Institute
  • University of Texas at Dallas
  • Jilin University
  • Deakin University

Research output: Contribution to journalArticlepeer-review

Abstract

Vanadium (V)-doped tin oxide (SnO2) one-dimensional porous nanofibers (PNFs) were fabricated for the hydrogen detection application. V-doping changes the distances of different facets of the SnO2 crystal in different roles, and therefore deform or distort the SnO2 structure. The modulation effects of V4+ and V5+ on hydrogen detecting performance were discussed. With a suitable amount of V-doping, the porous SnO2 nanofibers exhibits ~66% increase of response sensitivity, 33% faster in response (2 s) and 50% faster in recovery time (1 s), comparing with undoped SnO2 nanofibers.

Original languageEnglish
Pages (from-to)638-644
Number of pages7
JournalTalanta
Volume167
DOIs
StatePublished - 15 May 2017

Keywords

  • Hydrogen sensor
  • Metal oxide
  • Porous nanofiber
  • Vanadium doping

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