Preparation of Rod-like Aluminum Doped Zinc Oxide Powders by Sol-gel Technique Using Metal Chlorides and Acetylacetone Precursors

Javad Keshtkar, Jorge Roberto Vargas Garcia, Jorge Galaviz Perez, José Martinez Trinidad

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Abstract

© 2018, Wuhan University of Technology and Springer-Verlag GmbH Germany, part of Springer Nature. Al-doped ZnO (AZO) powders were prepared by using metal chloride precursors and the sol-gel technique. IR peaks observed at 1590 cm -1 and 1620 cm -1 indicated the formation of metal chelate as a consequence of the addition of acetylacetone to the metal chloride solution. TG-DSC analysis of the AZO gels confirmed the formation of metal chelate as evidenced by the development of several weight loss peaks accompanied by the introduction of new endothermic peaks. The resulting AZO gels were annealed at 500, 600, and 800 °C to study the effect of annealing temperature. XRD and SEM results showed that crystallization of AZO gels takes place around 600 °C. Hexagonal wurtzite structure was identified as the main phase for all the samples. In addition, small shift of the XRD (002) peak coupled with XPS results from the AZO powders confirmed the successful doping of the ZnO powders. Micron sized rod-like AZO powders were uniform in dimension and morphology and remained stable even at 800 °C.
Original languageAmerican English
Pages (from-to)1293-1297
Number of pages1163
JournalJournal Wuhan University of Technology, Materials Science Edition
DOIs
StatePublished - 1 Dec 2018

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Zinc Oxide
Zinc oxide
Aluminum
Powders
Sol-gels
Chlorides
Metals
Gels
Crystallization
X ray photoelectron spectroscopy
Doping (additives)
Annealing
Scanning electron microscopy
acetylacetone
Temperature

Cite this

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title = "Preparation of Rod-like Aluminum Doped Zinc Oxide Powders by Sol-gel Technique Using Metal Chlorides and Acetylacetone Precursors",
abstract = "{\circledC} 2018, Wuhan University of Technology and Springer-Verlag GmbH Germany, part of Springer Nature. Al-doped ZnO (AZO) powders were prepared by using metal chloride precursors and the sol-gel technique. IR peaks observed at 1590 cm -1 and 1620 cm -1 indicated the formation of metal chelate as a consequence of the addition of acetylacetone to the metal chloride solution. TG-DSC analysis of the AZO gels confirmed the formation of metal chelate as evidenced by the development of several weight loss peaks accompanied by the introduction of new endothermic peaks. The resulting AZO gels were annealed at 500, 600, and 800 °C to study the effect of annealing temperature. XRD and SEM results showed that crystallization of AZO gels takes place around 600 °C. Hexagonal wurtzite structure was identified as the main phase for all the samples. In addition, small shift of the XRD (002) peak coupled with XPS results from the AZO powders confirmed the successful doping of the ZnO powders. Micron sized rod-like AZO powders were uniform in dimension and morphology and remained stable even at 800 °C.",
author = "Javad Keshtkar and {Vargas Garcia}, {Jorge Roberto} and {Galaviz Perez}, Jorge and {Martinez Trinidad}, Jos{\'e}",
year = "2018",
month = "12",
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doi = "10.1007/s11595-018-1966-x",
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journal = "Journal Wuhan University of Technology, Materials Science Edition",
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T1 - Preparation of Rod-like Aluminum Doped Zinc Oxide Powders by Sol-gel Technique Using Metal Chlorides and Acetylacetone Precursors

AU - Keshtkar, Javad

AU - Vargas Garcia, Jorge Roberto

AU - Galaviz Perez, Jorge

AU - Martinez Trinidad, José

PY - 2018/12/1

Y1 - 2018/12/1

N2 - © 2018, Wuhan University of Technology and Springer-Verlag GmbH Germany, part of Springer Nature. Al-doped ZnO (AZO) powders were prepared by using metal chloride precursors and the sol-gel technique. IR peaks observed at 1590 cm -1 and 1620 cm -1 indicated the formation of metal chelate as a consequence of the addition of acetylacetone to the metal chloride solution. TG-DSC analysis of the AZO gels confirmed the formation of metal chelate as evidenced by the development of several weight loss peaks accompanied by the introduction of new endothermic peaks. The resulting AZO gels were annealed at 500, 600, and 800 °C to study the effect of annealing temperature. XRD and SEM results showed that crystallization of AZO gels takes place around 600 °C. Hexagonal wurtzite structure was identified as the main phase for all the samples. In addition, small shift of the XRD (002) peak coupled with XPS results from the AZO powders confirmed the successful doping of the ZnO powders. Micron sized rod-like AZO powders were uniform in dimension and morphology and remained stable even at 800 °C.

AB - © 2018, Wuhan University of Technology and Springer-Verlag GmbH Germany, part of Springer Nature. Al-doped ZnO (AZO) powders were prepared by using metal chloride precursors and the sol-gel technique. IR peaks observed at 1590 cm -1 and 1620 cm -1 indicated the formation of metal chelate as a consequence of the addition of acetylacetone to the metal chloride solution. TG-DSC analysis of the AZO gels confirmed the formation of metal chelate as evidenced by the development of several weight loss peaks accompanied by the introduction of new endothermic peaks. The resulting AZO gels were annealed at 500, 600, and 800 °C to study the effect of annealing temperature. XRD and SEM results showed that crystallization of AZO gels takes place around 600 °C. Hexagonal wurtzite structure was identified as the main phase for all the samples. In addition, small shift of the XRD (002) peak coupled with XPS results from the AZO powders confirmed the successful doping of the ZnO powders. Micron sized rod-like AZO powders were uniform in dimension and morphology and remained stable even at 800 °C.

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