Formation of poly(2-vinylpyridine) films on Zn by galvanostatic electropolymerization

Hiroaki Nakano, Yuki Kuwahara, Satoshi Oue, Shigeo Kobayashi, Hisaaki Fukushima, Jeong Mo Yoon

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)

抄録

Poly(2vinylpyridine) films were deposited on Zn substrate by electropolymerization using a galvanostatic technique at 30°C in pH 5 aqueous solution containing methanol. Films were also formed by employing cyclic voltammetry and potentiostatic techniques; these were compared with those formed using galvanostatic electrolysis. The thickness of films formed by galvanostatic electrolysis increased in proportion to the amount of charge passed during electropolymerization but decreased with increasing current density because of increased hydrogen evolution. The FT-IR spectra and the color of the films suggested that the structure of poly(2-vinylpyridine) films changed from the non-branched to the branched chain type at higher current densities. The anodic current density for Zn dissolution in 3% NaCl solution was significantly decreased by coating with poly(2-vinylpyridine) films. After electropolymerization at 50Am -2, the anodic reaction was most inhibited, showing excellent corrosion resistance. Although the electrochemical techniques employed had no influence on the thickness or the structure of films, the films formed by galvanostatic electrolysis contained the fewest cracks and gave the best corrosion resistance.

元の言語英語
ページ(範囲)281-286
ページ数6
ジャーナルMaterials Transactions
46
発行部数2
DOI
出版物ステータス出版済み - 2 1 2005

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Electropolymerization
electrolysis
Electrolysis
Current density
current density
corrosion resistance
Corrosion resistance
poly(2-vinylpyridine)
Cyclic voltammetry
Methanol
high current
Hydrogen
proportion
dissolving
Dissolution
methyl alcohol
cracks
aqueous solutions
Color
Cracks

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

これを引用

Formation of poly(2-vinylpyridine) films on Zn by galvanostatic electropolymerization. / Nakano, Hiroaki; Kuwahara, Yuki; Oue, Satoshi; Kobayashi, Shigeo; Fukushima, Hisaaki; Yoon, Jeong Mo.

:: Materials Transactions, 巻 46, 番号 2, 01.02.2005, p. 281-286.

研究成果: ジャーナルへの寄稿記事

Nakano, Hiroaki ; Kuwahara, Yuki ; Oue, Satoshi ; Kobayashi, Shigeo ; Fukushima, Hisaaki ; Yoon, Jeong Mo. / Formation of poly(2-vinylpyridine) films on Zn by galvanostatic electropolymerization. :: Materials Transactions. 2005 ; 巻 46, 番号 2. pp. 281-286.
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abstract = "Poly(2vinylpyridine) films were deposited on Zn substrate by electropolymerization using a galvanostatic technique at 30°C in pH 5 aqueous solution containing methanol. Films were also formed by employing cyclic voltammetry and potentiostatic techniques; these were compared with those formed using galvanostatic electrolysis. The thickness of films formed by galvanostatic electrolysis increased in proportion to the amount of charge passed during electropolymerization but decreased with increasing current density because of increased hydrogen evolution. The FT-IR spectra and the color of the films suggested that the structure of poly(2-vinylpyridine) films changed from the non-branched to the branched chain type at higher current densities. The anodic current density for Zn dissolution in 3{\%} NaCl solution was significantly decreased by coating with poly(2-vinylpyridine) films. After electropolymerization at 50Am -2, the anodic reaction was most inhibited, showing excellent corrosion resistance. Although the electrochemical techniques employed had no influence on the thickness or the structure of films, the films formed by galvanostatic electrolysis contained the fewest cracks and gave the best corrosion resistance.",
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AU - Yoon, Jeong Mo

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N2 - Poly(2vinylpyridine) films were deposited on Zn substrate by electropolymerization using a galvanostatic technique at 30°C in pH 5 aqueous solution containing methanol. Films were also formed by employing cyclic voltammetry and potentiostatic techniques; these were compared with those formed using galvanostatic electrolysis. The thickness of films formed by galvanostatic electrolysis increased in proportion to the amount of charge passed during electropolymerization but decreased with increasing current density because of increased hydrogen evolution. The FT-IR spectra and the color of the films suggested that the structure of poly(2-vinylpyridine) films changed from the non-branched to the branched chain type at higher current densities. The anodic current density for Zn dissolution in 3% NaCl solution was significantly decreased by coating with poly(2-vinylpyridine) films. After electropolymerization at 50Am -2, the anodic reaction was most inhibited, showing excellent corrosion resistance. Although the electrochemical techniques employed had no influence on the thickness or the structure of films, the films formed by galvanostatic electrolysis contained the fewest cracks and gave the best corrosion resistance.

AB - Poly(2vinylpyridine) films were deposited on Zn substrate by electropolymerization using a galvanostatic technique at 30°C in pH 5 aqueous solution containing methanol. Films were also formed by employing cyclic voltammetry and potentiostatic techniques; these were compared with those formed using galvanostatic electrolysis. The thickness of films formed by galvanostatic electrolysis increased in proportion to the amount of charge passed during electropolymerization but decreased with increasing current density because of increased hydrogen evolution. The FT-IR spectra and the color of the films suggested that the structure of poly(2-vinylpyridine) films changed from the non-branched to the branched chain type at higher current densities. The anodic current density for Zn dissolution in 3% NaCl solution was significantly decreased by coating with poly(2-vinylpyridine) films. After electropolymerization at 50Am -2, the anodic reaction was most inhibited, showing excellent corrosion resistance. Although the electrochemical techniques employed had no influence on the thickness or the structure of films, the films formed by galvanostatic electrolysis contained the fewest cracks and gave the best corrosion resistance.

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