Selective, sensitive, and reversible detection of H2S using Mo-doped ZnO nanowire network sensors

Hyung Sik Woo, Chang Hoon Kwak, Il Doo Kim, Jong Heun Lee

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

Mo-doped ZnO nanowire (NW) networks were prepared by coating the MoS 2 layer through successive ionic layer adsorption and reaction and subsequent heat treatment at 600 °C for 2 h. The resulting Mo-doped ZnO NW network sensor demonstrated a high gas response of 14.11 to 5 ppm H2S at 300 °C, which is 7.66-11.47 times higher than those of 5 ppm C 2H5OH, NH3, HCHO, CO, H2, o-xylene, benzene, toluene, and trimethylamine. The reversibility of the sensor signal, as well as the response and selectivity to H2S, is significantly improved by Mo doping into the ZnO NW networks, which can open various applications to monitor H2S in an indoor atmosphere, industrial petroleum/gas, and automobile exhaust gas. This journal is

Original languageEnglish
Pages (from-to)6412-6418
Number of pages7
JournalJournal of Materials Chemistry A
Volume2
Issue number18
DOIs
Publication statusPublished - 2014 May 14

ASJC Scopus subject areas

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

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