Aluminum-doped zinc oxide powders: synthesis, properties and application
| Autor: | R. Y. Hong, Q. Chen, W. G. Feng, P. Zhang, D. Badami |
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| Rok vydání: | 2013 |
| Předmět: |
Polypropylene
Materials science Coprecipitation Composite number chemistry.chemical_element Percolation threshold Zinc Condensed Matter Physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Chemical engineering Electrical resistivity and conductivity Methyl orange Photocatalysis Electrical and Electronic Engineering Composite material |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 25:678-692 |
| ISSN: | 1573-482X 0957-4522 |
| DOI: | 10.1007/s10854-013-1630-3 |
| Popis: | Aluminum-doped zinc oxide (AZO) powder was successfully synthesized by coprecipitation. In comparison with other methods, coprecipitation method provides advantages such as facile, economic and environmental-benign. The effects of Al-doping concentration and post-sintering treatment on electrical conductivity of AZO were investigated. Moreover, we also studied the influences of Al-doping concentration, pH, and type of dye on the photocatalytic activity of AZO powders. The objective of this study is to obtain a set of optimum parameters that will allow for improving electrical conductivity and photocatalytic activity of the powders. Additionally, the synthesized AZO powders which had high performance were modified by silane coupling agent KH-550 and then reinforced into polypropylene (PP) matrix. In order to improve the electrical conductivity of AZO/PP composites, the effect of modified-AZO filler content on electrical conductivity of AZO/PP composites was investigated. In the vicinity of the percolation threshold (around 3 wt%), the AZO/PP composite’s resistivity decreased dramatically by several orders of magnitude. |
| Databáze: | OpenAIRE |
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