Synthesis and Gas-Sensing Properties of MnO{sub 2 –} {sub x} and MnO{sub 2 –} {sub x}/CuO-Coated Multiwalled Carbon Nanotube Nanocomposites
- Omsk Scientific Center, Siberian Branch, Russian Academy of Sciences (Russian Federation)
Nanocomposites based on multiwall carbon nanotubes (MWCNTs) impregnated with manganese oxide MnO{sub 2 –} {sub x} and copper oxide CuO are synthesized and studied. The morphology and elemental composition of MWCNT layers and MWCNT/MnO{sub 2 –} {sub x} and MWCNT/MnO{sub 2 –} {sub x}/CuO nanocomposites are investigated by scanning electron microscopy and X-ray photoelectron spectroscopy. We study the gas-sensing response of the prepared nanocomposites to hydrogen sulfide (H{sub 2}S) and nitrogen dioxide (NO{sub 2}). An increase in the conductance observed for the as-grown MWCNTs and the nanocomposites upon NO{sub 2} adsorption suggests that these structures exhibit a behavior characteristic of p-type conductivity. Nanocomposites with copper show a markedly enhanced gas-sensing response to H{sub 2}S.
- OSTI ID:
- 22925015
- Journal Information:
- Physics of the Solid State, Vol. 61, Issue 11; Other Information: Copyright (c) 2019 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7834
- Country of Publication:
- United States
- Language:
- English
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