Chemical reactions in the detection of acetone and NO by a CeO2 thin film

Bené, R. W.; Perczel, I.V.; Réti, F.; Meyer, F.; Fleisher, M.; Meixner, H.

doi:10.1016/s0925-4005(00)00592-x

Cited by 64 publications

(31 citation statements)

References 8 publications

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“…therefore, it have attracted significant attention as gas sensors 3 for CO [19,20], H2S [21], C2H5OH [22], and carbon disulfide [23], acetone [24].…”

Section: Introductionmentioning

confidence: 99%

Enhanced NH3 gas-sensing performance of silica modified CeO2 nanostructure based sensors

Wang

Zhang

et al. 2018

Sensors and Actuators B: Chemical

152

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Northumbria University has developed Northumbria Research Link (NRL) to enable users to access the University's research output. Copyright © and moral rights for items on NRL are retained by the individual author(s) and/or other copyright owners. Single copies of full items can be reproduced, displayed or performed, and given to third parties in any format or medium for personal research or study, educational, or not-for-profit purposes without prior permission or charge, provided the authors, title and full bibliographic details are given, as well as a hyperlink and/or URL to the original metadata page. The content must not be changed in any way. Full items must not be sold commercially in any format or medium without formal permission of the copyright holder. The full policy is available online: http://nrl.northumbria.ac.uk/policies.html This document may differ from the final, published version of the research and has been made available online in accordance with publisher policies. To read and/or cite from the published version of the research, please visit the publisher's website (a subscription may be required.) This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Accepted Manuscript Highlights The silica modified CeO2 nanostructures are synthesized using a sol-hydrothermal route and used as NH3 gas-sensing materials. At room temperature, the 8%silica-CeO2 based gas sensor shows high gas response of 3244% to 80 ppm of NH3 and lower detection limit (0.5 ppm) towards NH3 gas. The gas response of the NH3 sensor has good linear characteristics for NH3 gas detecting. The NH3 sensor exhibits good reproducibility, selectivity and long-term stability to NH3 gas. AbstractThe silica modified CeO2 gas sensing nanomaterials are synthesized using a sol-hydrothermal route. The 8%silica-CeO2 has larger specific surface areas of 83.75 m 2 /g and smaller crystalline size of 11.5 nm than pure CeO2, respectively. Compared to pure CeO2, the 8%silica-CeO2 based gas sensor exhibits significant enhancement 2 NH3 gas-sensing performance. At room temperature, it shows much better gas response of 3244% to 80 ppm of NH3 gas and lower detection limit (0.5 ppm) towards NH3 gas. It is also found that the gas response of the NH3 gas sensors increases linearly with the increase of NH3 gas concentration. Moreover, the NH3 gas sensor have good reversibility, stability and selectivity. The reason of enhanced NH3gas-sensing performance is not only because of the increased specific surface areas, but also due to the electrolytic conductivity of NH4 + and OH -on the surface.

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“…therefore, it have attracted significant attention as gas sensors 3 for CO [19,20], H2S [21], C2H5OH [22], and carbon disulfide [23], acetone [24].…”

Section: Introductionmentioning

confidence: 99%

Enhanced NH3 gas-sensing performance of silica modified CeO2 nanostructure based sensors

Wang

Zhang

et al. 2018

Sensors and Actuators B: Chemical

152

View full text Add to dashboard Cite

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“…Although it is popularly regarded as relatively low toxic, some investigations have indicated that chronical exposure may damage to the liver and kidney or nerve, and cause inflammation [2]. Accordingly, persistent efforts have been directed so far to develop the detection of acetone by many analytical methods, such as electrochemistry [3], gas chromatography coupled to flame ionization detection [4] or mass spectrometry [5,6], etc. These techniques, in spite of their effectiveness for trace acetone measurement with merits of high performance and sensitivity, are known to have inherent disadvantages for online monitoring in the actual locale of the contamination.…”

Section: Introductionmentioning

confidence: 99%

Sensitive and selective acetone sensor based on its cataluminescence from nano-La2O3 surface

Tang

et al. 2008

Sensors and Actuators B: Chemical

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“…Therefore, it has been widely used in the field of catalyst [1][2][3], photocatalyst [4][5], solid oxide fuel cells [6][7], oxygen pump [9] and luminescence materials [13][14][15]. Recently, CeO2 has also been proposed for one potential sensing material in the field of solid state gas sensors for environmental monitoring, such as CO [16,17], CH4 [17], O2 [18], NO2 [19], carbon disulfide [20] and humidity [21]. Nanostructured CeO2 could significantly enhance the gas sensing performance because of its characteristic structural and electronic properties as mentioned above.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermally synthesized CeO2 nanowires for H2S sensing at room temperature

Niu

Lin

et al. 2016

Journal of Alloys and Compounds

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CeO2 nanowires were synthesized using a facile hydrothermal process without any surfactant, and their morphological, structural and gas sensing properties were systematically investigated. The CeO2 nanowires with an average diameter of 12.5 nm had a face-centered cubic fluorite structure and grew along [111] of CeO2. At the room temperature of 25 o C, hydrogen sulfide (H2S) gas sensor based on the CeO2 nanowires showed excellent sensitivity, low detection limit (50 ppb), and short response and recovery time (24 s and 15 s for 50 ppb H2S, respectively).

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Chemical reactions in the detection of acetone and NO by a CeO2 thin film

Cited by 64 publications

References 8 publications

Enhanced NH3 gas-sensing performance of silica modified CeO2 nanostructure based sensors

Enhanced NH3 gas-sensing performance of silica modified CeO2 nanostructure based sensors

Sensitive and selective acetone sensor based on its cataluminescence from nano-La2O3 surface

Hydrothermally synthesized CeO2 nanowires for H2S sensing at room temperature

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