Electrodeposition of Zn-V oxide composite from strong agitated solution without dispersed particles

Hiroaki Nakano, Satoshi Oue, Yasunori Annoura, Takaaki Nagai, Naoto Oho, Hisaaki Fukushima

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

Electrodeposition of Zn-V oxide composite was examined from an agitated sulfate solution without dispersed particles containing Zn2+ and VO2+ at pH 2 and 40 °C under galvanostatic conditions. Although V content in deposits decreased for the moment with increasing current density regardless of flow rate of electrolyte, the further increase in current density brought about the increase in V content in deposits. The curves, which shows the relationship between the V content in deposits and current density, shifted to the higher current density region with increasing flow rate of electrolyte. Agitation of the electrolyte decreased the V content of the deposits but reduced the segregation of V oxide. EDX point analysis of cross section of deposits revealed that the V oxide concentrated at the surface of deposits. It was found from the polarization curves in 3% NaCl solution that the corrosion potential of deposited Zn-V oxide films depended on the V content in deposits regardless of the flow rate of electrolyte and it shifted to more noble direction with codeposition of V oxide at V contents in deposits below 2 mass%. At V contents of < 4 mass%, the corrosion current density of deposits decreased with increasing V contents in deposits. The corrosion current densities of deposits obtained from agitated solutions were smaller than that from un-agitated solutions.

元の言語英語
ページ(範囲)376-382
ページ数7
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
100
発行部数3
DOI
出版物ステータス出版済み - 3 17 2014

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Electrodeposition
electrodeposition
Oxides
Deposits
deposits
composite materials
oxides
Composite materials
Current density
current density
Electrolytes
electrolytes
corrosion
flow velocity
Flow rate
Corrosion
agitation
curves
Sulfates
Oxide films

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

これを引用

Electrodeposition of Zn-V oxide composite from strong agitated solution without dispersed particles. / Nakano, Hiroaki; Oue, Satoshi; Annoura, Yasunori; Nagai, Takaaki; Oho, Naoto; Fukushima, Hisaaki.

:: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 巻 100, 番号 3, 17.03.2014, p. 376-382.

研究成果: ジャーナルへの寄稿記事

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abstract = "Electrodeposition of Zn-V oxide composite was examined from an agitated sulfate solution without dispersed particles containing Zn2+ and VO2+ at pH 2 and 40 °C under galvanostatic conditions. Although V content in deposits decreased for the moment with increasing current density regardless of flow rate of electrolyte, the further increase in current density brought about the increase in V content in deposits. The curves, which shows the relationship between the V content in deposits and current density, shifted to the higher current density region with increasing flow rate of electrolyte. Agitation of the electrolyte decreased the V content of the deposits but reduced the segregation of V oxide. EDX point analysis of cross section of deposits revealed that the V oxide concentrated at the surface of deposits. It was found from the polarization curves in 3{\%} NaCl solution that the corrosion potential of deposited Zn-V oxide films depended on the V content in deposits regardless of the flow rate of electrolyte and it shifted to more noble direction with codeposition of V oxide at V contents in deposits below 2 mass{\%}. At V contents of < 4 mass{\%}, the corrosion current density of deposits decreased with increasing V contents in deposits. The corrosion current densities of deposits obtained from agitated solutions were smaller than that from un-agitated solutions.",
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AU - Fukushima, Hisaaki

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