Hollow V2O5 nanoassemblies for high-performance room-temperature hydrogen sensors

Ying Ting Wang, Wha Tzong Whang, Chun Hua Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

42 Scopus citations


Nanostructured oxides with characteristic morphologies are essential building blocks for high-performance gas-sensing devices. We describe the high-yield fabrication of a series of functionalized V2O5 nanoassemblies through a facile polyol approach with specific varieties of polyvinylpyrrolidone. The synthesized V2O5 nanoassemblies consisting of tiny one-dimensional nanoblocks with the absence of any extrinsic catalysts exhibit distinct hemispherical or spherical hollow morphologies and operate as room-temperature hydrogen sensors with remarkable sensitivities and responses.

Original languageEnglish
Pages (from-to)8480-8487
Number of pages8
JournalACS Applied Materials and Interfaces
Issue number16
StatePublished - 29 Apr 2015


  • core-shell
  • nanoassembly
  • nanosensor
  • semisphere

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