锌
阳极
合金
材料科学
阴极保护
铟
电池(电)
镍
电化学
扫描电子显微镜
电偶阳极
冶金
煅烧
枝晶(数学)
无机化学
化学工程
化学
电极
复合材料
催化作用
功率(物理)
物理
物理化学
生物化学
几何学
量子力学
数学
工程类
作者
Chang Woo Lee,Sathiyanarayanan Kulathu Iyer,Seung Wook Eom,Mun Soo Yun
标识
DOI:10.1016/j.jpowsour.2006.02.019
摘要
In our continued efforts for improving the performance of zinc anodes for a Zn/air battery, we now report the preparation of three alloys and improved performances of anodes made up with these alloys. The alloys contained zinc, nickel, and indium with different weight percentages and were calcined at two different temperatures. Out of the six alloys, the alloy which has a composition of zinc 90%, nickel 7.5% and Indium 2.5% and fired at 500 °C is found to be the best. In the case of the hydrogen evolution reaction, this alloy had its potential shifted to a more negative potential. As far as the cyclic voltammograms were concerned, the difference between the anodic and cathodic part was minimal when compared with other alloys. Surprisingly, this alloy had reversibility even after 100 cycles of the cyclic voltammogram. This is a clear indication that dendrite formation was reduced to a considerable extent. Images taken with a scanning electron microscope also indicated reduced dendrite formation.
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