High-performance gas sensing achieved by mesoporous tungsten oxide mesocrystals with increased oxygen vacancies

Dong Wang, Jianbo Sun, Xuan Cao, Yihan Zhu, Qingxiao Wang, Guangchao Wang, Yu Han, Geyu Lu, Guangsheng Pang, Shouhua Feng

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

The inner structure of W18O49 mesocrystals was observed by electron microscopy with the help of ultramicrotomy and focused ion beam techniques. The results showed that these mesocrystals contain irregular mesopores formed through partial fusion of self-assembled nanowires, and consequently have long-range structural ordering in one dimension and short-range ordering in the other two dimensions. The W18O 49 mesocrystals exhibit superior performance in gas sensing applications, which is considered to be associated with the presence of more oxygen vacancy sites in the unique mesoporous structure. © 2013 The Royal Society of Chemistry.
Original languageEnglish (US)
Pages (from-to)8653
JournalJournal of Materials Chemistry A
Volume1
Issue number30
DOIs
StatePublished - 2013

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Chemistry(all)

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