Graphene oxide boosted high surface area CeO2 for humidity sensing
Precise measurement of humidity is of high significance in diverse fields like instrumentation, automated systems, agriculture and climatology. Herein as a first ever attempt, we report ceria-graphene oxide (CeO2-GO) composites as resistive type humidity sensor, that shows attractive response to moi...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-03-01
|
| Series: | Results in Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123024000057 |
| _version_ | 1797247780026056704 |
|---|---|
| author | C Anjali V Nidhisha T.P Amrutha Ritu Gopal B Chethan Mohamed Shahin Thayyil Pradeepan Periyat Renuka Neeroli Kizhakayil |
| author_facet | C Anjali V Nidhisha T.P Amrutha Ritu Gopal B Chethan Mohamed Shahin Thayyil Pradeepan Periyat Renuka Neeroli Kizhakayil |
| author_sort | C Anjali |
| collection | DOAJ |
| description | Precise measurement of humidity is of high significance in diverse fields like instrumentation, automated systems, agriculture and climatology. Herein as a first ever attempt, we report ceria-graphene oxide (CeO2-GO) composites as resistive type humidity sensor, that shows attractive response to moisture. High surface area ceria is synthesised via ammonia mediated precipitation from salt precursor, and CeO2-GO composites are achieved via hydrothermal route. The composites are well characterized using various analytical tools. Experiments using different mass ratios of GO in the composite show that there is an optimum amount of GO to realise maximum efficiency in the test parameters. It is further noted that the performance of the sensor is controlled by the active adsorption sites, which is proportional to surface area of the composite. An optimized CeO2-GO matrix yielded a response and recovery time of 19 s and 10 s respectively. The narrow hysteresis in moisture adsorption-desorption study and excellent stability for about 60 days are also observed for the system, warranting the successful utility of the system for practical applications. |
| first_indexed | 2024-03-08T14:25:43Z |
| format | Article |
| id | doaj.art-fcd6f10437e94c8797641d34543cb98c |
| institution | Directory Open Access Journal |
| issn | 2590-1230 |
| language | English |
| last_indexed | 2024-04-24T20:04:08Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj.art-fcd6f10437e94c8797641d34543cb98c2024-03-24T07:00:32ZengElsevierResults in Engineering2590-12302024-03-0121101752Graphene oxide boosted high surface area CeO2 for humidity sensingC Anjali0V Nidhisha1T.P Amrutha2Ritu Gopal3B Chethan4Mohamed Shahin Thayyil5Pradeepan Periyat6Renuka Neeroli Kizhakayil7Advanced Materials Research Centre, Department of Chemistry, University of Calicut, Kerala, 673 635, IndiaAdvanced Materials Research Centre, Department of Chemistry, University of Calicut, Kerala, 673 635, IndiaAdvanced Materials Research Centre, Department of Chemistry, University of Calicut, Kerala, 673 635, IndiaAdvanced Materials Research Centre, Department of Chemistry, University of Calicut, Kerala, 673 635, IndiaDepartment of Physics, Indian Institute of Science, Bengaluru, Karnataka, 560012, IndiaDepartment of Physics, University of Calicut, Kerala, 673635, IndiaDepartment of Environmental Studies, Kannur University, 670567, IndiaAdvanced Materials Research Centre, Department of Chemistry, University of Calicut, Kerala, 673 635, India; Corresponding author.Precise measurement of humidity is of high significance in diverse fields like instrumentation, automated systems, agriculture and climatology. Herein as a first ever attempt, we report ceria-graphene oxide (CeO2-GO) composites as resistive type humidity sensor, that shows attractive response to moisture. High surface area ceria is synthesised via ammonia mediated precipitation from salt precursor, and CeO2-GO composites are achieved via hydrothermal route. The composites are well characterized using various analytical tools. Experiments using different mass ratios of GO in the composite show that there is an optimum amount of GO to realise maximum efficiency in the test parameters. It is further noted that the performance of the sensor is controlled by the active adsorption sites, which is proportional to surface area of the composite. An optimized CeO2-GO matrix yielded a response and recovery time of 19 s and 10 s respectively. The narrow hysteresis in moisture adsorption-desorption study and excellent stability for about 60 days are also observed for the system, warranting the successful utility of the system for practical applications.http://www.sciencedirect.com/science/article/pii/S2590123024000057Graphene oxideCeriaHumidity sensingResponse and recovery timesStability |
| spellingShingle | C Anjali V Nidhisha T.P Amrutha Ritu Gopal B Chethan Mohamed Shahin Thayyil Pradeepan Periyat Renuka Neeroli Kizhakayil Graphene oxide boosted high surface area CeO2 for humidity sensing Results in Engineering Graphene oxide Ceria Humidity sensing Response and recovery times Stability |
| title | Graphene oxide boosted high surface area CeO2 for humidity sensing |
| title_full | Graphene oxide boosted high surface area CeO2 for humidity sensing |
| title_fullStr | Graphene oxide boosted high surface area CeO2 for humidity sensing |
| title_full_unstemmed | Graphene oxide boosted high surface area CeO2 for humidity sensing |
| title_short | Graphene oxide boosted high surface area CeO2 for humidity sensing |
| title_sort | graphene oxide boosted high surface area ceo2 for humidity sensing |
| topic | Graphene oxide Ceria Humidity sensing Response and recovery times Stability |
| url | http://www.sciencedirect.com/science/article/pii/S2590123024000057 |
| work_keys_str_mv | AT canjali grapheneoxideboostedhighsurfaceareaceo2forhumiditysensing AT vnidhisha grapheneoxideboostedhighsurfaceareaceo2forhumiditysensing AT tpamrutha grapheneoxideboostedhighsurfaceareaceo2forhumiditysensing AT ritugopal grapheneoxideboostedhighsurfaceareaceo2forhumiditysensing AT bchethan grapheneoxideboostedhighsurfaceareaceo2forhumiditysensing AT mohamedshahinthayyil grapheneoxideboostedhighsurfaceareaceo2forhumiditysensing AT pradeepanperiyat grapheneoxideboostedhighsurfaceareaceo2forhumiditysensing AT renukaneerolikizhakayil grapheneoxideboostedhighsurfaceareaceo2forhumiditysensing |