Effects of precursor composition used in solution precursor plasma spray on the properties of ZnO coatings for CO2 and UV light sensing
| Autor: | Reynaldo M. Vequizo, Pablo Carpio, Rolando T. Candidato, Lech Pawlowski, Jose Presiphil B. Ontolan |
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| Přispěvatelé: | IRCER - Axe 2 : procédés plasmas et lasers (IRCER-AXE2), Institut de Recherche sur les CERamiques (IRCER), Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Fabrication
Materials science chemistry.chemical_element 02 engineering and technology Zinc 01 natural sciences [SPI.MAT]Engineering Sciences [physics]/Materials Solution precursor plasma spray chemistry.chemical_compound SPPS Sensitivity Zinc nitrate CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA 0103 physical sciences Materials Chemistry ComputingMilieux_MISCELLANEOUS Wurtzite crystal structure 010302 applied physics Aqueous solution UV sensor Surfaces and Interfaces General Chemistry [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Surfaces Coatings and Films Chemical engineering chemistry Crystallite CO2 gas sensor ZnO coatings 0210 nano-technology |
| Zdroj: | Surface and Coatings Technology Surface and Coatings Technology, Elsevier, 2019, 371, pp.395-400. ⟨10.1016/j.surfcoat.2018.10.009⟩ RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| ISSN: | 0257-8972 |
| DOI: | 10.1016/j.surfcoat.2018.10.009⟩ |
| Popis: | [EN] The potential of finely-structured zinc oxide (ZnO) coatings developed via solution precursor plasma spraying (SPPS) as CO2 gas and UV light sensor was explored in this work. The coatings were deposited on stainless steel substrates using aqueous solutions of zinc nitrate and zinc acetate as precursors. The coatings' microstructures were studied in relation to the solution precursors used. Relatively porous coatings were obtained when using acetate as starting precursor compared to the coatings from the nitrate precursor. This was attributed to the different chemical routes of ZnO formation for each precursor droplet upon contact with plasma jet. Phase analysis confirmed the formation of polycrystalline ZnO having wurtzite structure from both precursors. The sprayed ZnO coatings showed good sensitivity and recovery towards UV light. Moreover, the coatings were sensitive towards carbon dioxide (CO2) analyte gas but did not show any good recovery which was attributed to the microstructure of the coatings. These results showed the feasibility of SPPS process for the fabrication of finely-structured ZnO coatings as sensors of CO2 gas and UV light. The Office of the Vice Chancellor for Research and Extension (OVCRE) of Mindanao State University-Iligan Institute of Technology (MSU-IIT) through the Department of Research (DR) is hereby acknowledged for financially supporting this research work |
| Databáze: | OpenAIRE |
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