Electrochemical properties of α-Fe + Fe3C nanocrystalline composites in acidic environments

被引：0
|
作者：
A. V. Syugaev
S. F. Lomaeva
S. M. Reshetnikov
机构：
[1] Russian Academy of Sciences,Physical
[2] Udmurt State University,Technical Institute, Ural Branch
来源：
Protection of Metals and Physical Chemistry of Surfaces | 2010年 / 46卷
关键词：
Cementite; Hydrogen Evolution; Passive Film; Armco Iron; Nanocrystalline State;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Regularities of the physicochemical behavior of α-Fe + Fe3C nanocomposites in a concentration range of cementite from 9 to 92 wt % in sulfate and chloride solutions are studied. Nanocrystalline state (∼40 nm) is found to intensify the active dissolution of α-Fe + Fe3C alloys and not noticeably affect the hydrogen evolution in acidic environments. With an increase in the cementite content or when it forms a reticular structure, the catalytic activity of α-Fe + Fe3C nanocrystalline composites with respect to the hydrogen evolution increases. Cementite manifests a higher overpotential of dissolution in both sulfate and chloride solutions.
引用
收藏
页码：82 / 89
页数：7
相关论文
共 50 条
  • [1] Electrochemical properties of α-Fe + Fe3C nanocrystalline composites in acidic environments
    Syugaev, A. V.
    Lomaeva, S. F.
    Reshetnikov, S. M.
    [J]. PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES, 2010, 46 (01) : 82 - 89
  • [2] Magnetic properties of nanocrystalline Fe/Fe3C composites
    Wu, Aibing
    Liu, Deming
    Tong, Lizhu
    Yu, Lianxiang
    Yang, Hua
    [J]. CRYSTENGCOMM, 2011, 13 (03): : 876 - 882
  • [3] Corrosion-electrochemical properties of α-Fe + Fe3C + VC nanocomposites in neutral environments
    Syugaev, A. V.
    Lomaeva, S. F.
    Lyalina, N. V.
    Reshetnikov, S. M.
    [J]. PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES, 2013, 49 (07) : 818 - 825
  • [4] Corrosion-electrochemical properties of α-Fe + Fe3C + VC nanocomposites in neutral environments
    A. V. Syugaev
    S. F. Lomaeva
    N. V. Lyalina
    S. M. Reshetnikov
    [J]. Protection of Metals and Physical Chemistry of Surfaces, 2013, 49 : 818 - 825
  • [5] Corrosion-Electrochemical Properties of α-Fe + Fe3C + TiC Nanocomposites in Neutral Environments
    Syugaev, A. V.
    Lomaeva, S. F.
    Lyalina, N. V.
    Reshetnikov, S. M.
    [J]. PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES, 2011, 47 (05) : 590 - 597
  • [6] Corrosion-electrochemical properties of α-Fe + Fe3C + TiC nanocomposites in neutral environments
    A. V. Syugaev
    S. F. Lomaeva
    N. V. Lyalina
    S. M. Reshetnikov
    [J]. Protection of Metals and Physical Chemistry of Surfaces , 2011, 47 : 590 - 597
  • [7] Corrosion-electrochemical properties of α-Fe + Fe3C + TiC nanocomposites in acidic sulfate solutions
    A. V. Syugaev
    S. F. Lomaeva
    N. V. Lyalina
    S. M. Reshetnikov
    [J]. Protection of Metals and Physical Chemistry of Surfaces, 2011, 47 : 320 - 329
  • [8] Corrosion-electrochemical properties of α-Fe + Fe3C + TiC nanocomposites in acidic sulfate solutions
    Syugaev, A. V.
    Lomaeva, S. F.
    Lyalina, N. V.
    Reshetnikov, S. M.
    [J]. PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES, 2011, 47 (03) : 320 - 329
  • [9] Passivation and local activation of α-Fe + MeC + Fe3C (Me = Ti, V, or Nb) nanocrystalline composites in neutral environments
    Syugaev, A. V.
    Lomaeva, S. F.
    Lyalina, N. V.
    Reshetnikov, S. M.
    [J]. PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES, 2013, 49 (02) : 209 - 215
  • [10] Passivation and local activation of α-Fe + MeC + Fe3C (Me = Ti, V, or Nb) nanocrystalline composites in neutral environments
    A. V. Syugaev
    S. F. Lomaeva
    N. V. Lyalina
    S. M. Reshetnikov
    [J]. Protection of Metals and Physical Chemistry of Surfaces, 2013, 49 : 209 - 215
12345