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

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

DOI: 10.1039/C4TA00387J

关键词:

摘要: Mo-doped ZnO nanowire (NW) networks were prepared by coating the MoS2 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 C2H5OH, 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 …

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