Synthesis and Gas-Sensing Properties of MnO{sub 2 –} {sub x} and MnO{sub 2 –} {sub x}/CuO-Coated Multiwalled Carbon Nanotube Nanocomposites

Journal Article · Fri Nov 15 04:00:00 EST 2019 · Physics of the Solid State

DOI:https://doi.org/10.1134/S1063783419110386· OSTI ID:22925015

Sten’kin, Yu. A.; Bolotov, V. V.; Roslikov, V. E.; Ivlev, K. E. ^[1]

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1. 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, Journal Name: Physics of the Solid State Journal Issue: 11 Vol. 61; ISSN 1063-7834
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
ADSORPTION
CARBON NANOTUBES
COPPER OXIDES
HYDROGEN SULFIDES
MANGANESE OXIDES
NANOCOMPOSITES
NITROGEN DIOXIDE
SCANNING ELECTRON MICROSCOPY
SYNTHESIS
X-RAY PHOTOELECTRON SPECTROSCOPY