Academic Journal
Investigating the Metallic Nanoparticles Decoration on Reduced Graphene Oxide-Based Sensors Used to Detect Sulfur Dioxide
| العنوان: | Investigating the Metallic Nanoparticles Decoration on Reduced Graphene Oxide-Based Sensors Used to Detect Sulfur Dioxide |
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| المؤلفون: | Ruiz, Elisa, Varenne, Christelle, de Lima, Bruno, Gueye, Thiaka, Pauly, Alain, Brunet, Jérôme, Mastelaro, Valmor, Ndiaye, Amadou |
| المساهمون: | Institut Pascal (IP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Universidade de São Paulo = University of São Paulo (USP), Ministère de L’enseignement supérieur et de la recherche (MESR)- Research Center “Innovation Transportation and Production Systems” of the I-SITE CAP 20-25- Fundação de Amparo à Pesquisa do Estado de São Paulo—FAPESP (Grant no 2018/07517-2 and 2013/07296-2). |
| المصدر: | ISSN: 2227-9040 ; Chemosensors ; https://hal.science/hal-04567602 ; Chemosensors, 2024, 12 (2), pp.24. ⟨10.3390/chemosensors12020024⟩. |
| بيانات النشر: | HAL CCSD MDPI |
| سنة النشر: | 2024 |
| المجموعة: | HAL Clermont Auvergne (Université Blaise Pascal Clermont-Ferrand / Université d'Auvergne) |
| مصطلحات موضوعية: | rGO, nanoparticles, nanocomposites, functionalization, gas sensors, SO2, NPs loading, physical decoration, chemical decoration, [CHIM.MATE]Chemical Sciences/Material chemistry, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, [SDE.IE]Environmental Sciences/Environmental Engineering |
| الوصف: | International audience ; This paper presents the impact of the decoration of reduced graphene oxide (rGO) with metallic nanoparticles to detect sulfur dioxide (SO2). Copper and platinum were employed to produce metal nanoparticles (NPs) for the chemical and physical decoration of rGO to form the nanocomposites (rGO/NPs). We optimized NP loading by varying the concentrations of metal ions and deposition times for chemical and physical decoration, respectively. The chemical decoration presents a random nanoparticle distribution on the rGO surface with a broad particle size distribution (1 to 100 nm with a majority less than 40 nm). In comparison, the physical decoration presents uniformly distributed nanoparticles with particles of a size between 1 and 20 nm, with a majority less than 10 nm. The chemically decorated structures present the best gas responses and show that lower NP loading provides better responses. The nanocomposites present responses owing to a better synergy between NPs and the rGO surface, combined with the catalytic action of the NPs on the rGO. The physical decoration allows higher NP surface coverage than the chemical one but implies a lower remaining rGO naked surface for gaseous molecule interaction. These results illustrate that the NPs’ surface and the uncovered rGO contribute to the gas response. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | hal-04567602; https://hal.science/hal-04567602; https://hal.science/hal-04567602/document; https://hal.science/hal-04567602/file/NPs%20Decor236.pdf |
| DOI: | 10.3390/chemosensors12020024 |
| الاتاحة: | https://hal.science/hal-04567602 https://hal.science/hal-04567602/document https://hal.science/hal-04567602/file/NPs%20Decor236.pdf https://doi.org/10.3390/chemosensors12020024 |
| Rights: | http://creativecommons.org/licenses/by/ ; info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.9F81B7F |
| قاعدة البيانات: | BASE |
| DOI: | 10.3390/chemosensors12020024 |
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