Fabrication of Ag<sub>2</sub>O/WO<sub>3</sub> based sensors for detection of hydrogen sulfide
<p dir="ltr">Several metal oxides, such as tungsten oxide (WO<sub>3</sub>), are considered superior sensing materials for hydrogen sulfide (H<sub>2</sub>S) detection in the ambient environment. In this study, silver loaded tungsten oxide nanoparticles were pre...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | , , , , , , |
| Published: |
2022
|
| Subjects: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1864513510766018560 |
|---|---|
| author | Ahmad Al-Sarraj (17151007) |
| author2 | Belal Salah (14150460) Ahmad I. Ayesh (10188469) Khaled M. Saoud (16876017) Abdul Azzi El Mel (17151010) Atiq ur Rehman (14153391) Amine Bermak (1895947) Yousef Haik (2610628) |
| author2_role | author author author author author author author |
| author_facet | Ahmad Al-Sarraj (17151007) Belal Salah (14150460) Ahmad I. Ayesh (10188469) Khaled M. Saoud (16876017) Abdul Azzi El Mel (17151010) Atiq ur Rehman (14153391) Amine Bermak (1895947) Yousef Haik (2610628) |
| author_role | author |
| dc.creator.none.fl_str_mv | Ahmad Al-Sarraj (17151007) Belal Salah (14150460) Ahmad I. Ayesh (10188469) Khaled M. Saoud (16876017) Abdul Azzi El Mel (17151010) Atiq ur Rehman (14153391) Amine Bermak (1895947) Yousef Haik (2610628) |
| dc.date.none.fl_str_mv | 2022-01-01T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.sna.2021.113256 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Fabrication_of_Ag_sub_2_sub_O_WO_sub_3_sub_based_sensors_for_detection_of_hydrogen_sulfide/24314263 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Electronics, sensors and digital hardware Materials engineering Physical sciences Condensed matter physics WO3 H2S sensor Metal oxides Silver modified WO3 |
| dc.title.none.fl_str_mv | Fabrication of Ag<sub>2</sub>O/WO<sub>3</sub> based sensors for detection of hydrogen sulfide |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">Several metal oxides, such as tungsten oxide (WO<sub>3</sub>), are considered superior sensing materials for hydrogen sulfide (H<sub>2</sub>S) detection in the ambient environment. In this study, silver loaded tungsten oxide nanoparticles were prepared by microwave-assisted chemical route. Nanoparticle thin films were deposited on substrates with electrical electrodes to explore their gas sensing and electrical properties. The morphology, crystal structure, and chemical state were examined using x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and x-ray photoelectron spectroscopy (XPS). The sensing properties of the sample were tested at different temperatures varying from room temperature to 200 °C. The Ag<sub>2</sub>O/WO<sub>3</sub> nanoparticles showed enhanced H<sub>2</sub>S sensing abilities at very low temperatures (close to room temperature) and concentrations as low as 10 ppm compared to bare WO<sub>3</sub>.</p><p dir="ltr">Moreover, the effect of annealing and comparison with physical mixing was studied and showed that non-annealed Ag-loaded WO<sub>3</sub> produced the best response. The results can be attributed to the decrease in the energy bandgap due to increasing the Ag content and the strong interaction between the Ag and WO<sub>3</sub> and silver to silver oxide transformation at low annealing temperatures. This study demonstrates that Ag<sub>2</sub>O/WO<sub>3</sub> sensors offer enhanced low-temperature sensing with reasonable response time, low operating power, and simple fabrication that can be promising sensors for H<sub>2</sub>S, which may be utilized as wearable devices and in the industrial setting.</p><h2>Other Information</h2><p dir="ltr">Published in: Sensors and Actuators A: Physical<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.sna.2021.113256" target="_blank">https://dx.doi.org/10.1016/j.sna.2021.113256</a></p><p dir="ltr">Additional institutions affiliated with: Liberal Arts and Science Program - VCUarts Qatar</p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_646ec50c9e9fdb511fcb034ba6600412 |
| identifier_str_mv | 10.1016/j.sna.2021.113256 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/24314263 |
| publishDate | 2022 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Fabrication of Ag<sub>2</sub>O/WO<sub>3</sub> based sensors for detection of hydrogen sulfideAhmad Al-Sarraj (17151007)Belal Salah (14150460)Ahmad I. Ayesh (10188469)Khaled M. Saoud (16876017)Abdul Azzi El Mel (17151010)Atiq ur Rehman (14153391)Amine Bermak (1895947)Yousef Haik (2610628)EngineeringElectronics, sensors and digital hardwareMaterials engineeringPhysical sciencesCondensed matter physicsWO3H2S sensorMetal oxidesSilver modified WO3<p dir="ltr">Several metal oxides, such as tungsten oxide (WO<sub>3</sub>), are considered superior sensing materials for hydrogen sulfide (H<sub>2</sub>S) detection in the ambient environment. In this study, silver loaded tungsten oxide nanoparticles were prepared by microwave-assisted chemical route. Nanoparticle thin films were deposited on substrates with electrical electrodes to explore their gas sensing and electrical properties. The morphology, crystal structure, and chemical state were examined using x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and x-ray photoelectron spectroscopy (XPS). The sensing properties of the sample were tested at different temperatures varying from room temperature to 200 °C. The Ag<sub>2</sub>O/WO<sub>3</sub> nanoparticles showed enhanced H<sub>2</sub>S sensing abilities at very low temperatures (close to room temperature) and concentrations as low as 10 ppm compared to bare WO<sub>3</sub>.</p><p dir="ltr">Moreover, the effect of annealing and comparison with physical mixing was studied and showed that non-annealed Ag-loaded WO<sub>3</sub> produced the best response. The results can be attributed to the decrease in the energy bandgap due to increasing the Ag content and the strong interaction between the Ag and WO<sub>3</sub> and silver to silver oxide transformation at low annealing temperatures. This study demonstrates that Ag<sub>2</sub>O/WO<sub>3</sub> sensors offer enhanced low-temperature sensing with reasonable response time, low operating power, and simple fabrication that can be promising sensors for H<sub>2</sub>S, which may be utilized as wearable devices and in the industrial setting.</p><h2>Other Information</h2><p dir="ltr">Published in: Sensors and Actuators A: Physical<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.sna.2021.113256" target="_blank">https://dx.doi.org/10.1016/j.sna.2021.113256</a></p><p dir="ltr">Additional institutions affiliated with: Liberal Arts and Science Program - VCUarts Qatar</p>2022-01-01T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.sna.2021.113256https://figshare.com/articles/journal_contribution/Fabrication_of_Ag_sub_2_sub_O_WO_sub_3_sub_based_sensors_for_detection_of_hydrogen_sulfide/24314263CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/243142632022-01-01T00:00:00Z |
| spellingShingle | Fabrication of Ag<sub>2</sub>O/WO<sub>3</sub> based sensors for detection of hydrogen sulfide Ahmad Al-Sarraj (17151007) Engineering Electronics, sensors and digital hardware Materials engineering Physical sciences Condensed matter physics WO3 H2S sensor Metal oxides Silver modified WO3 |
| status_str | publishedVersion |
| title | Fabrication of Ag<sub>2</sub>O/WO<sub>3</sub> based sensors for detection of hydrogen sulfide |
| title_full | Fabrication of Ag<sub>2</sub>O/WO<sub>3</sub> based sensors for detection of hydrogen sulfide |
| title_fullStr | Fabrication of Ag<sub>2</sub>O/WO<sub>3</sub> based sensors for detection of hydrogen sulfide |
| title_full_unstemmed | Fabrication of Ag<sub>2</sub>O/WO<sub>3</sub> based sensors for detection of hydrogen sulfide |
| title_short | Fabrication of Ag<sub>2</sub>O/WO<sub>3</sub> based sensors for detection of hydrogen sulfide |
| title_sort | Fabrication of Ag<sub>2</sub>O/WO<sub>3</sub> based sensors for detection of hydrogen sulfide |
| topic | Engineering Electronics, sensors and digital hardware Materials engineering Physical sciences Condensed matter physics WO3 H2S sensor Metal oxides Silver modified WO3 |