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首页> 外文会议>Batteries and energy technology (General) - 217th ECS meeting >Fabrication and Properties of SnO_-Based Inert Gas Anodes for Electrowinning
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Fabrication and Properties of SnO_-Based Inert Gas Anodes for Electrowinning

机译：SnO_基电积惰性气体阳极的制备及性能

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摘要

Porous inert SnO_2-based anodes rammed inside a mullite tube, for an initial study of their depolarization effect applying reducing gas, have been prepared. The anodes were prepared by using commercial SnO_2 materials which were crushed down and mixed with a SnO_2-CuO-Sb_2O_3 binder phase and sintered at 1200-1300 °C in air. The anodes were characterized for electrical and mechanical properties and used as depolarizing inert anodes applying H2 as reducing gas in electrowinning of Ag in NaCl-CaCl_2 melts at 680 °C. The mechanical and electrical properties were found suitable for applications as inert anodes. The depolarizing effect was confirmed by a reduction of cell voltage and electrode potentials while introducing H_2 through the inert anodes. However, reactions between the melt and anode resulted in a Ca-SnO_2 phase reducing the electrical conductivity of the anodes and increasing the anode potential during electrolysis compared to the initial potential.
机译：制备了在莫来石管内夯实的多孔惰性SnO_2基阳极，以初步研究其在还原气体作用下的去极化作用。通过使用商业化的SnO_2材料制备阳极，将其粉碎并与SnO_2-CuO-Sb_2O_3粘结剂相混合并在1200-1300°C的空气中烧结。阳极具有电气和机械特性，并用作去极化惰性阳极，在680°C的NaCl-CaCl_2熔体中对Ag进行电沉积时，使用H2作为还原气体。发现机械和电性能适合用作惰性阳极。通过降低电池电压和电极电位，同时通过惰性阳极引入H_2可以确认去极化效果。然而，与初始电势相比，熔体与阳极之间的反应导致Ca-SnO_2相降低了阳极的电导率并增加了电解过程中的阳极电势。

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  • 来源
  • 会议地点 Vancouver(CA);Vancouver(CA)
  • 作者

    T. Mokkelbost; O. Paulsen; S. Xiao; G. M. Haarberg; A. P. Ratvik;

  • 作者单位

    SINTEF Materials and Chemistry, 7465 Trondheim, Norway;

    SINTEF Materials and Chemistry, 7465 Trondheim, Norway;

    Department of Materials Science and Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway;

    Department of Materials Science and Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway;

    Department of Materials Science and Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 独立电源技术（直接发电）;
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