Humidity tolerant sub-PPM ammonia gas sensors
Accurate ammonia detection is critical for areas such as environmental monitoring, medical diagnostics, and industrial safety. Existing commercial gas sensors struggle with poor sensitivity, selectivity, and stability, especially in a fluctuating humidity environment. Despite significant advancement...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Online Access: | https://hdl.handle.net/10356/178208 |
| _version_ | 1824455264222314496 |
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| author | Ng, Rayner Bao Feng Wang, Jianwu Luo, Yifei Chen, Xiaodong |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Ng, Rayner Bao Feng Wang, Jianwu Luo, Yifei Chen, Xiaodong |
| author_sort | Ng, Rayner Bao Feng |
| collection | NTU |
| description | Accurate ammonia detection is critical for areas such as environmental monitoring, medical diagnostics, and industrial safety. Existing commercial gas sensors struggle with poor sensitivity, selectivity, and stability, especially in a fluctuating humidity environment. Despite significant advancements in the sensitivity of ammonia gas sensors in research, their performance in varying environmental conditions leaves much to be desired. This review explores the recent progress of electrical, gravimetric, and optical sub-ppm ammonia gas sensors and their humidity tolerance at room temperature. By considering the humidity interference mechanism, strategies to alleviate its impact are discussed. Through these strategies, it is imperative to balance sensitivity and stability in sensor design to enhance the commercial deployment of these solutions in an array of applications. |
| first_indexed | 2025-02-19T03:35:26Z |
| format | Journal Article |
| id | ntu-10356/178208 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:35:26Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1782082024-06-05T07:18:32Z Humidity tolerant sub-PPM ammonia gas sensors Ng, Rayner Bao Feng Wang, Jianwu Luo, Yifei Chen, Xiaodong School of Materials Science and Engineering Institute of Materials Research and Engineering, A*STAR Institute for Digital Molecular Analytics and Science Max Planck-NTU Joint Lab for Artificial Senses Innovative Centre for Flexible Devices (iFlex) Engineering Gas sensors Humidity Accurate ammonia detection is critical for areas such as environmental monitoring, medical diagnostics, and industrial safety. Existing commercial gas sensors struggle with poor sensitivity, selectivity, and stability, especially in a fluctuating humidity environment. Despite significant advancements in the sensitivity of ammonia gas sensors in research, their performance in varying environmental conditions leaves much to be desired. This review explores the recent progress of electrical, gravimetric, and optical sub-ppm ammonia gas sensors and their humidity tolerance at room temperature. By considering the humidity interference mechanism, strategies to alleviate its impact are discussed. Through these strategies, it is imperative to balance sensitivity and stability in sensor design to enhance the commercial deployment of these solutions in an array of applications. Agency for Science, Technology and Research (A*STAR) This work was supported by the Agency for Science, Technology and Research (A*STAR) through its MTC Programmatic Funding Scheme under Project M23L8b0049 Scent Digitalization and Computation (SDC) Programme. 2024-06-05T07:18:31Z 2024-06-05T07:18:31Z 2024 Journal Article Ng, R. B. F., Wang, J., Luo, Y. & Chen, X. (2024). Humidity tolerant sub-PPM ammonia gas sensors. IEEE Nanotechnology Magazine, 18(1), 13-22. https://dx.doi.org/10.1109/MNANO.2023.3340381 1932-4510 https://hdl.handle.net/10356/178208 10.1109/MNANO.2023.3340381 2-s2.0-85181581668 1 18 13 22 en M23L8b0049 IEEE Nanotechnology Magazine © 2024 IEEE. All rights reserved. |
| spellingShingle | Engineering Gas sensors Humidity Ng, Rayner Bao Feng Wang, Jianwu Luo, Yifei Chen, Xiaodong Humidity tolerant sub-PPM ammonia gas sensors |
| title | Humidity tolerant sub-PPM ammonia gas sensors |
| title_full | Humidity tolerant sub-PPM ammonia gas sensors |
| title_fullStr | Humidity tolerant sub-PPM ammonia gas sensors |
| title_full_unstemmed | Humidity tolerant sub-PPM ammonia gas sensors |
| title_short | Humidity tolerant sub-PPM ammonia gas sensors |
| title_sort | humidity tolerant sub ppm ammonia gas sensors |
| topic | Engineering Gas sensors Humidity |
| url | https://hdl.handle.net/10356/178208 |
| work_keys_str_mv | AT ngraynerbaofeng humiditytolerantsubppmammoniagassensors AT wangjianwu humiditytolerantsubppmammoniagassensors AT luoyifei humiditytolerantsubppmammoniagassensors AT chenxiaodong humiditytolerantsubppmammoniagassensors |