電解酸化による五酸化バナジウムの合成

DOI

書誌事項

タイトル別名
  • Preparation of V2O5 by electrolytic oxidation.

説明

Electrolytic preparation of V2O5 was studied using VOSO4 as a starting material in acidic solution. Cyclic voltammograms for VOSO4 in the pH range of 1.3 to 2.3 showed a reversible anodic and cathodic peak at about 0.3 to 0.1V vs. Hg/Hg2SO4. Anodic and cathodic peak potentials depended on the pH of the solution. A plot of cathodic peak potentials against pH showed a linear relationship with a slope of 0.171V/pH. This was nearly equal to the theoretical value of 0.1767V/pH at 24°C, corresponding to the electrode reaction, <br>V2O5+6H++2e=2VO2++3H2O<br>The oxidation products obtained by constant-potential electrolysis at or near peak potential was found by elemental analysis and X-ray diffraction patterns to be amorphous V2O5 giving one broad peak at about 2θ=26°. X-ray diffraction patterns of the oxidation product heated to above 300°C in an air and nitrogen atmosphere agreed with those of V2O5. Inspection by SEM showed that the surface of the product was spongy in structure.

収録刊行物

  • 金属表面技術

    金属表面技術 39 (9), 517-521, 1988

    一般社団法人 表面技術協会

キーワード

詳細情報 詳細情報について

  • CRID
    1390001204112295424
  • NII論文ID
    130003810142
  • DOI
    10.4139/sfj1950.39.517
  • COI
    1:CAS:528:DyaL1MXis1WnsQ%3D%3D
  • ISSN
    18843395
    00260614
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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