The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.
Design of highly porous SnO2-CuO nanotubes for enhancing H2S gas sensor performance
Abstract
Abstract Highly porous SnO2-CuO hollow nanofiber mats were synthesized by electrospinning combined with thermal processing for high performance H2S gas sensing applications. The porous morphology generated in the one-dimensional (1-D) nanocomposite led to an improvement in surface-to-adsorbate molecule interactions. Our novel concept lies in fabrication of SnO2-CuO with a 1-D highly porous structure by electrospinning coupled with generation of hollow nanostructures drawing on nanofiber-to-nanotube transformation affected by Kirkendall effect during thermal processing. The fibrous structure was synthesized by electrospinning with mixed solution of Sn and Cu precursors, which then underwent heat treatment under various temperature conditions. The hollow structures were generated based on the different diffusion rates between SnO2-CuO and Sn/Cu. The SnO2-CuO nanotubes have low operating temperatures and high H2S sensing performance. The increased surface area for detecting H2S resulted in great enhancement of the response (Ra/Rg = 1395) and a very fast response time of 5.27 s with a stable recovery time to a low concentration of H2S to 5 ppm at 200 °C. The porous SnO2-CuO hollow nanofiber gas sensor proved to be a promising candidate for gas sensor systems due to increased surface area with metal oxide catalyst. The mechanisms involved in enhancement of gas response and extended applications are also discussed.
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“flammable and explosive gases, such as H2 and CH4, pose a direct threat to the safety of human life and property”
From Functionalized Hydrogel-Based Wearable Gas and Humidity Sensors. (2023) · cites this paper as [12]
Citations
Cites
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Self-citationOxide Semiconductor Gas Sensors
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CuO Nanowires Can Be Synthesized by Heating Copper Substrates in Air
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Detection of NO2 down to ppb Levels Using Individual and Multiple In2O3 Nanowire Devices
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Cited by
Functionalized Hydrogel-Based Wearable Gas and Humidity Sensors.
Luo, Y., Li, J., Ding, Q., Wang, H., Liu, C., & Wu, J. (2023) · Nano-Micro Letters · doi:10.1007/s40820-023-01109-2 · Cited by 236
“Moreover, flammable and explosive gases, such as H 2 and CH 4 , pose a direct threat to the safety of human life and property [12–17].”
BackgroundLi, T., Yin, W., Gao, S., Sun, Y., Xu, P., Wu, S., Kong, H., Yang, G., & Wei, G. (2022) · Nanomaterials · doi:10.3390/nano12060982 · Cited by 222
Metadata
- Authors
- Park, K.-R., Cho, H.-B., Lee, J., Song, Y., Kim, W.-B., & Choa, Y.-H.
- Affiliations
- Hanyang University (KR)
- Dankook University (KR)
- Corresponding author
- Choa, Yong-Ho
- Venue
- Sensors and Actuators B: Chemical
- Publisher
- Elsevier BV
- Published
- 2020-01
- Volume
- 302
- Pages
- 127179
- ISSN
- 0925-4005 (ISSN-L)
- OpenAlex
- W2976899432
- Cited by
- 260
- References
- 31
- Citations by year
- 2026: 17 · 2025: 44 · 2024: 33 · 2023: 35 · 2022: 56 · 2021: 47 · 2020: 25
- FWCI
- 11.78
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.elsevier.com/tdm/userlicense/1.0/ (tdm)
- www.elsevier.com/legal/tdmrep-license (tdm)
- Locations
- Sensors and Actuators B Chemical (publishedVersion)
- Funders
- Ministry of Trade, Industry and Energy (20002694)
- Ministry of Education (NRF- 2018R1A6A1A03024231)
- National Research Foundation of Korea
- Ministry of Science, ICT and Future Planning (2016M3A7B4900044)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Gas Sensing Nanomaterials and Sensors
- Physical Sciences › Environmental Science › Environmental Engineering › Air Quality Monitoring and Forecasting
- Physical Sciences › Materials Science › Materials Chemistry › Copper-based nanomaterials and applications
- Keywords
- H2S detection, porous nanocomposites, Kirkendall effect, electrospinning, thermal processing, metal oxide gas sensors, low-temperature gas sensing, gas adsorption, response and recovery time
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- Park, K.-R., Cho, H.-B., Lee, J., Song, Y., Kim, W.-B., & Choa, Y.-H. (2020). Design of highly porous SnO2-CuO nanotubes for enhancing H2S gas sensor performance. Sensors and Actuators B: Chemical. https://doi.org/10.1016/j.snb.2019.127179
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