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Description:

Zinc oxide nano-sized rods were synthesized by a hydrothermal process to control their size and morphology. Polyethylene glycol (PEG) was used as an additive to control the particle growth by surface adsorption. Rod-shaped ZnO particles were synthesized with the addition of PEG, and the morphology changed depending on the pH of the reaction solution. At pH＝10.3-5, the size of the ZnO rods synthesized with PEG was reduced by adsorption on the whole particle. At pH>11, the higher concentration of surface Zn-O- exposure on the (0001) plane led to the PEG preferential adsorption on the side of the ZnO hexagonal prism and the growth in the c-axis direction was promoted, so that the length of the ZnO rods increased. The addition of PEG showed the same effect on ZnO rods precipitated on the substrate. Under the strong magnetic field of 12 T, the convection flow was suppressed and the size and orientation of the ZnO rods were reduced. Even with the addition of PEG, the suppressed convection under the strong magnetic field resulted in the reduction of the size and orientation of the ZnO rods.

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• In Copyright
  

Keyword: Zinc oxide, Hydrothermal process, Additive effect, Strong magnetic field

Date published:

Publisher: 無機マテリアル学会

Journal:

• Journal of the Society of Inorganic Materials, Japan (ISSN: 21854378) vol. 32 issue. Supplement

Funding:

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.11451/mukimate.25.Suppl.06

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Updated at: 2026-01-07 13:48:32 +0900

Published on MDR: 2026-01-07 16:20:28 +0900