Carbon dioxide measurements using long period grating optical fibre sensor coated with metal organic framework HKUST-1
| العنوان: | Carbon dioxide measurements using long period grating optical fibre sensor coated with metal organic framework HKUST-1 |
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| المؤلفون: | Stephen P. Morgan, Sergiy Korposh, Ricardo Correia, Jiri Hromadka, Begum Tokay |
| بيانات النشر: | Elsevier, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Materials science, Scanning electron microscope, 02 engineering and technology, Grating, engineering.material, 010402 general chemistry, 01 natural sciences, law.invention, Crystallinity, Optics, Coating, law, Materials Chemistry, Electrical and Electronic Engineering, Crystallization, Thin film, Composite material, Instrumentation, business.industry, Layer by layer, Metals and Alloys, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Long period grating (LPG), metal organic framework (MOF), HKUST-1, layer by layer deposition, carbon dioxide (CO2) sensor, engineering, 0210 nano-technology, business, Refractive index |
| الوصف: | An optical fibre long period grating (LPG) based carbon dioxide (CO2) sensor coated with HKUST-1, a material from the metal organic framework family, functional coating is presented. In-situ crystallization and layer by layer (LbL) techniques of HKUST-1 thin film synthesis are compared in terms of the feasibility of the deposition procedure (time and cost efficiency) and the sensitivity of the film to carbon dioxide. The sensing mechanism is based on the measurement of the change of the refractive index (RI) of the coating that is induced by the penetration of CO2 molecules into the HKUST-1 pores. The HKUST-1 film was characterized by scanning electron microscopy (SEM). The thickness and refractive index (RI) of the 10, 20 and 40 layers thick films were determined using ellipsoetry. The crystallinity of the films was examined by X-ray diffraction pattern (XRD). While no response to CO2 was observed for the sensor coated using the in-situ crystallization technique, an LPG modified with 10, 20 and 40 layers of HKUST-1 films using LbL method upon exposure to CO2 in the range of 500 ppm to 40,000 ppm showed good sensitivity. The film containing 40 layers exhibited the highest sensitivity to CO2 with an obtained detection limit of 401 ppm. |
| وصف الملف: | PDF; application/pdf |
| اللغة: | English |
| تدمد: | 0925-4005 1054-6693 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3654b8b87fab263366a536bada0a9d46 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....3654b8b87fab263366a536bada0a9d46 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 09254005 10546693 |
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