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首页> 外文期刊>Materials Science and Engineering >Catalytic activity of zirconia on zirconium for the oxygen evolution reaction in potassium hydroxide
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Catalytic activity of zirconia on zirconium for the oxygen evolution reaction in potassium hydroxide

机译：氧化锆对氢氧化钾中氧化反应的氧化锆的催化活性

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摘要

It has been reported that the Ni anode electrode used in alkaline water electrolysis (AWE) is degraded when the fluctuating electricity produced by renewable energy (wind and solar power) systems is used. To develop alternative materials, we focused on zirconium oxide because of its high chemical stability, and investigated its catalytic activity for the oxygen evolution reaction (OER) on zirconium oxides on a zirconium plate fabricated by both air oxidation (ZrO_2/Zr) and arc-plasma deposition (ZrO_2/Zr_APD). From cross-sectional observations and electrochemical results, the mixed tetragonal and monoclinic structure of ZrO_2 was related to its catalytic activity for the OER. ZrO_2Zr_APD showed obviously a higher activity than ZrO_2/Zr. The reason for this is that the particles are better dispersed in ZrO_2/Zr_APD than in ZrO_2/Zr, so the electrochemical surface area of ZrO_2/ ZrAPD seems to be larger than that of ZrO_2/Zr.
机译：据报道，当使用可再生能量（风力和太阳能）系统产生的波动电时，碱性水电解（AWE）中使用的Ni阳极电极降低。 开发替代材料，我们专注于氧化锆，因为其高化学稳定性，并研究了通过空气氧化（ZrO_2 / ZR）和弧形制造的锆氧化物上的氧化氧化物上的氧化反应（Oer）的催化活性。 等离子体沉积（ZrO_2 / ZR_APD）。 从横截面观察和电化学结果来看，ZrO_2的混合四方和单斜晶结构与其陶瓷的催化活性有关。 ZrO_2ZR_APD显然比ZRO_2 / ZR显然显示出更高的活动。 原因是颗粒在Zro_2 / Zr_APD中优于ZrO_2 / Zr，因此ZrO_2 / ZrAPD的电化学表面积似乎大于ZrO_2 / Zr的电化学表面积。

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  • 来源
    《Materials Science and Engineering》 |2021年第5期|115112.1-115112.6|共6页
  • 作者

    Koichi Matsuzawa; Akimitsu Ishihara; Ayaka Oishi; Shigenori Mitsushima; Ken-ichiro Ota;

  • 作者单位

    Graduate School of Engineering Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan;

    Institute Advanced Science Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan;

    Graduate School of Engineering Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan;

    Graduate School of Engineering Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan Institute Advanced Science Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan;

    Graduate School of Engineering Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan;

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  • 正文语种 eng
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  • 关键词

    Water electrolysis; Alkaline water electrolysis; Oxygen evolution reaction; Anode; Zirconium oxide; Zirconium;

    机译：水电解;碱性水电解;氧气进化反应;阳极;氧化锆;锆;

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