Enhanced Gas Sensing Performance of Heterostructure Sensors Based on H-NCD, MoS₂, and Functionalized Graphene Oxide for Ethanol, NH₃, and NO₂ Detection
This study investigates the gas-sensing capabilities of heterostructure sensors based on hydrogen-terminated nanocrystalline diamond (H-NCD), molybdenum disulfide (MoS₂), and functionalized graphene oxide (SH-GO, GO) for detecting ethanol, ammonia (NH₃), and nitrogen dioxide (NO₂) gases at 100 ppm c...
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EDP Sciences
2024-01-01
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| Series: | E3S Web of Conferences |
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| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/118/e3sconf_sne2-2024_02004.pdf |
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| author | Nemova Darya Viktorovna Prakash Akula Saida Angothu Pandey Alok Kumar Singh Takveer Jagga Megha Kumar Rohit |
| author_facet | Nemova Darya Viktorovna Prakash Akula Saida Angothu Pandey Alok Kumar Singh Takveer Jagga Megha Kumar Rohit |
| author_sort | Nemova Darya Viktorovna |
| collection | DOAJ |
| description | This study investigates the gas-sensing capabilities of heterostructure sensors based on hydrogen-terminated nanocrystalline diamond (H-NCD), molybdenum disulfide (MoS₂), and functionalized graphene oxide (SH-GO, GO) for detecting ethanol, ammonia (NH₃), and nitrogen dioxide (NO₂) gases at 100 ppm concentrations. Sensors were tested at two distinct temperatures: 125°C and room temperature (22°C). Among the tested sensors, the SH-GO/H-NCD exhibited the highest sensitivity to ethanol, with a response of 634% at 22°C and 554% at 125°C. The Au NPs/H-NCD sensor showed the second-best ethanol response of 587% at 125°C. For NH₃, SH-GO/H-NCD demonstrated the best response at 125°C with a value of 76%, while at room temperature, it showed 41%. NO₂ sensing showed negative responses, with the SH-GO/H-NCD sensor exhibiting the least degradation at -47% at 125°C and -19% at 22°C. The results highlight those combining materials into heterostructures significantly enhances gas detection performance, even at room temperature, showing comparable responses to commercial sensors. |
| format | Article |
| id | doaj-art-7cd0bc596e12424ea4f0c3563c56a86c |
| institution | Kabale University |
| issn | 2267-1242 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-7cd0bc596e12424ea4f0c3563c56a86c2024-11-21T11:28:20ZengEDP SciencesE3S Web of Conferences2267-12422024-01-015880200410.1051/e3sconf/202458802004e3sconf_sne2-2024_02004Enhanced Gas Sensing Performance of Heterostructure Sensors Based on H-NCD, MoS₂, and Functionalized Graphene Oxide for Ethanol, NH₃, and NO₂ DetectionNemova Darya Viktorovna0Prakash Akula1Saida Angothu2Pandey Alok Kumar3Singh Takveer4Jagga Megha5Kumar Rohit6Peter the Great St. Petersburg Polytechnic UniversityDepartment of Civil, GRIET, BachupallyDepartment of Electronics & Communication Engineering, KG Reddy College of Engineering and TechnologyUttaranchal UniversityCentre of Research Impact and Outcome, Chitkara UniversityChitkara Centre for Research and Development, Chitkara UniversityUniversity School of Mechanical Engineering, Research & Incubation Centre, Rayat Bahra UniversityThis study investigates the gas-sensing capabilities of heterostructure sensors based on hydrogen-terminated nanocrystalline diamond (H-NCD), molybdenum disulfide (MoS₂), and functionalized graphene oxide (SH-GO, GO) for detecting ethanol, ammonia (NH₃), and nitrogen dioxide (NO₂) gases at 100 ppm concentrations. Sensors were tested at two distinct temperatures: 125°C and room temperature (22°C). Among the tested sensors, the SH-GO/H-NCD exhibited the highest sensitivity to ethanol, with a response of 634% at 22°C and 554% at 125°C. The Au NPs/H-NCD sensor showed the second-best ethanol response of 587% at 125°C. For NH₃, SH-GO/H-NCD demonstrated the best response at 125°C with a value of 76%, while at room temperature, it showed 41%. NO₂ sensing showed negative responses, with the SH-GO/H-NCD sensor exhibiting the least degradation at -47% at 125°C and -19% at 22°C. The results highlight those combining materials into heterostructures significantly enhances gas detection performance, even at room temperature, showing comparable responses to commercial sensors.https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/118/e3sconf_sne2-2024_02004.pdfh-ncdmos₂sh-gogas sensorsheterostructuresethanol detectionammonia detectionnitrogen dioxide detection |
| spellingShingle | Nemova Darya Viktorovna Prakash Akula Saida Angothu Pandey Alok Kumar Singh Takveer Jagga Megha Kumar Rohit Enhanced Gas Sensing Performance of Heterostructure Sensors Based on H-NCD, MoS₂, and Functionalized Graphene Oxide for Ethanol, NH₃, and NO₂ Detection E3S Web of Conferences h-ncd mos₂ sh-go gas sensors heterostructures ethanol detection ammonia detection nitrogen dioxide detection |
| title | Enhanced Gas Sensing Performance of Heterostructure Sensors Based on H-NCD, MoS₂, and Functionalized Graphene Oxide for Ethanol, NH₃, and NO₂ Detection |
| title_full | Enhanced Gas Sensing Performance of Heterostructure Sensors Based on H-NCD, MoS₂, and Functionalized Graphene Oxide for Ethanol, NH₃, and NO₂ Detection |
| title_fullStr | Enhanced Gas Sensing Performance of Heterostructure Sensors Based on H-NCD, MoS₂, and Functionalized Graphene Oxide for Ethanol, NH₃, and NO₂ Detection |
| title_full_unstemmed | Enhanced Gas Sensing Performance of Heterostructure Sensors Based on H-NCD, MoS₂, and Functionalized Graphene Oxide for Ethanol, NH₃, and NO₂ Detection |
| title_short | Enhanced Gas Sensing Performance of Heterostructure Sensors Based on H-NCD, MoS₂, and Functionalized Graphene Oxide for Ethanol, NH₃, and NO₂ Detection |
| title_sort | enhanced gas sensing performance of heterostructure sensors based on h ncd mos₂ and functionalized graphene oxide for ethanol nh₃ and no₂ detection |
| topic | h-ncd mos₂ sh-go gas sensors heterostructures ethanol detection ammonia detection nitrogen dioxide detection |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/118/e3sconf_sne2-2024_02004.pdf |
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