Predicting the adsorption and reduction of NO2 on Sr-doped CeO2(1 1 1) using first-principles calculations

Kang, Sung Gu; Choi, Won Mook

doi:10.1016/j.apsusc.2022.155896

Cited by 3 publications

(1 citation statement)

References 54 publications

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“…NO 2 produced by the combustion of automobile engines and industrial fuels is one of the toxic gas pollutants, and the acid rain and photochemical smog produced have a great impact on the environment. [1][2][3] Europe, the United States and Japan are imposing strict emission standards on the automobile industry. For example, according to Euro VI (Europe), the permitted emission limit value of NO x gases is to be 0.06 g km −1 .…”

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confidence: 99%

An Amperometric Type NO₂ Sensor Utilizing La_0.7Sr_0.3MnO_3−δ-NiO Composite Sensing Electrode

Zhao,

Wang,

Dai

et al. 2024

J. Electrochem. Soc.

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NO2 is an important pollutant of automobile engines and industrial fuels, making it important to quantitatively monitor and control. An amperometric-type NO2 gas sensor was fabricated using yttria-stabilized zirconia (YSZ) electrolyte with a bi-layered structure and La0.7Sr0.3MnO3-δ-xNiO (LSMO-xNiO, x=0-0.75) composite sensing electrode (SE) prepared by impregnation method in combination with self-demixing. The samples were characterized using SEM, XRD, and XPS, and their performance as sensors was tested. LSMO-xNiO composite SE particles were formed by de-mixing in the process of treating the precursor at high temperatures and are uniformly dispersed in the YSZ porous backbone. With the increase of NiO content, the SE particles become significantly large. At 450-600°C, the response currents at a fixed potential have a linear relationship with the NO2 concentrations at 25-700 ppm. Combining stability and sensitivity, the voltage was fixed to -0.25V. The introduction of NiO into the LSMO sensing electrode effectively improves the performance of the sensor. The sensor based on LSMO-0.5NiO has the highest sensitivity (0.0405 µA/ppm) at 550°C. Simultaneously, the sensor exhibits good anti-interference ability for CH4, CO2, O2, and NO, but has obvious cross-sensitivity to H2 and NH3. In addition, the response current of the sensor change with the increase of RH.

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confidence: 99%

An Amperometric Type NO₂ Sensor Utilizing La_0.7Sr_0.3MnO_3−δ-NiO Composite Sensing Electrode

Zhao,

Wang,

Dai

et al. 2024

J. Electrochem. Soc.

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The photoelectric properties of Ga₂O₃ monolayer upon adsorption and doping with non-metal atoms

Zhang,

Wang,

Yang

et al. 2024

Physica B: Condensed Matter

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Photoelectric Characteristics of Adsorbed and Doped Non-Metallic Atoms on Ga2o3 Monolayer

Cui,

Zhang,

Wang

et al. 2024

Preprint

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Predicting the adsorption and reduction of NO2 on Sr-doped CeO2(1 1 1) using first-principles calculations

Cited by 3 publications

References 54 publications

An Amperometric Type NO₂ Sensor Utilizing La_0.7Sr_0.3MnO_3−δ-NiO Composite Sensing Electrode

An Amperometric Type NO₂ Sensor Utilizing La_0.7Sr_0.3MnO_3−δ-NiO Composite Sensing Electrode

The photoelectric properties of Ga₂O₃ monolayer upon adsorption and doping with non-metal atoms

Photoelectric Characteristics of Adsorbed and Doped Non-Metallic Atoms on Ga2o3 Monolayer

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Predicting the adsorption and reduction of NO2 on Sr-doped CeO2(1 1 1) using first-principles calculations

Cited by 3 publications

References 54 publications

An Amperometric Type NO2 Sensor Utilizing La0.7Sr0.3MnO3−δ -NiO Composite Sensing Electrode

An Amperometric Type NO2 Sensor Utilizing La0.7Sr0.3MnO3−δ -NiO Composite Sensing Electrode

The photoelectric properties of Ga₂O₃ monolayer upon adsorption and doping with non-metal atoms

Photoelectric Characteristics of Adsorbed and Doped Non-Metallic Atoms on Ga2o3 Monolayer

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An Amperometric Type NO₂ Sensor Utilizing La_0.7Sr_0.3MnO_3−δ-NiO Composite Sensing Electrode

An Amperometric Type NO₂ Sensor Utilizing La_0.7Sr_0.3MnO_3−δ-NiO Composite Sensing Electrode