• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Electrochemical Society(ECS) Meeting;Symposium on Electrochemistry of Novel Electrode Materials for Energy Conversion and Storage; 20070506-11;20070506-11; Chicago,IL(US);Chicago,IL(US) >Electrochemical Behavior of Nickel in Acidic Sulfate Electrolytes
【24h】

Electrochemical Behavior of Nickel in Acidic Sulfate Electrolytes

机译：镍在酸性硫酸盐电解质中的电化学行为

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The electrochemical behaviour of Nickel in sulphuric acid electrolytes was studied by various electrochemical means. Under cathodic polarization, Nickel forms metastable hydrides under cathodic charging; the successive egress of hydrogen is controlled by solid state diffusion of hydrogen atoms. The nature of these hydrides evolves with electrochemical aging of the samples, as judged by their electrochemical signature. The nature of the (hydro)oxides formed during anodic polarization also evolves with aging. Anodic polarization and investigation of electrochemical oscillations in the transpassive region show that defect states which constitute preferred dissolution sites assume a wider energy range with increasing aging, indicating a high degree of inhomogeneity of the surface. The catalytic activity of Nickel increases after aging under both cathodic and anodic conditions, due to the formation of an inhomogeneous surface.
机译：通过各种电化学手段研究了镍在硫酸电解质中的电化学行为。在阴极极化下，镍在阴极充电下形成亚稳态氢化物；氢的连续逸出是由氢原子的固态扩散控制的。这些氢化物的性质随着样品的电化学老化而演变，这由它们的电化学特征来判断。阳极极化过程中形成的（氢）氧化物的性质也会随着老化而发展。阳极极化和在超导区域中电化学振荡的研究表明，随着老化的增加，构成优选溶解位点的缺陷状态具有较宽的能量范围，表明表面高度不均匀。镍在阴极和阳极条件下老化后，由于形成不均匀的表面，其催化活性增加。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号