2020
DOI: 10.1016/j.apsusc.2019.144356
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Gas sensors based on CeO2 nanoparticles prepared by chemical precipitation method and their temperature-dependent selectivity towards H2S and NO2 gases

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Cited by 89 publications
(28 citation statements)
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“…In the case of the O 1s XPS spectrum, the binding energies lower than 530 eV are usually assigned to oxygen from the lattice of the CeO 2 crystal, in our case, at around 527 eV and 529 eV (Figure 4). The peak at higher binding energies, in our case around 531 eV, is usually attributed to the weakly absorbed oxygen species on the surface of CeO 2 associated with Ce 3+ ions [39][40][41] (Figure 4). These cover anionic molecules, such as OH − groups, O 2− 2 , or neutral molecules, including chemisorbed water.…”
Section: X-ray Photoelectron Spectroscopymentioning
confidence: 63%
“…In the case of the O 1s XPS spectrum, the binding energies lower than 530 eV are usually assigned to oxygen from the lattice of the CeO 2 crystal, in our case, at around 527 eV and 529 eV (Figure 4). The peak at higher binding energies, in our case around 531 eV, is usually attributed to the weakly absorbed oxygen species on the surface of CeO 2 associated with Ce 3+ ions [39][40][41] (Figure 4). These cover anionic molecules, such as OH − groups, O 2− 2 , or neutral molecules, including chemisorbed water.…”
Section: X-ray Photoelectron Spectroscopymentioning
confidence: 63%
“…Moreover, providing a cost-effective fabrication process for industrial perspectives should be considered. Various nanostructures, namely nanoparticles (NPs) [19,20], nanotubes (NTs) [21,22], nanowires (NWs) [23,24], and nanosheets (NSHs) [25,26], show good sensitivity to the different gases. Among all these nanostructures, silicon nanowires (SiNWs) have demonstrated substantial advantages due to their need for relatively standard processing techniques, which allows for integration with standard complementary metal oxide semiconductor (CMOS) processes for very large scale production [27,28].…”
Section: Introductionmentioning
confidence: 99%
“…14,15 The same active sites in these metal oxides have been used for H 2 S sensing at low temperatures. 16 Thus, it can be safely assumed that these metal oxide composites could be suitable for the catalytic oxidation of H 2 S at low temperatures or even at room temperature.…”
Section: Introductionmentioning
confidence: 99%
“…Though room temperature H 2 S oxidation studies on CeO 2 or CeO 2 -based composites are scarce, several reports on H 2 S sensing over these materials are available in the literature. 16,17 Many of the transition metal oxides show excellent H 2 S adsorptive/oxidative behaviour at room temperature. 18 Furthermore, the synthesized nanocomposites were tested for the removal of H 2 S in ambient conditions.…”
Section: Introductionmentioning
confidence: 99%