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首页> 外文期刊>Crystal growth & design >Fabrication of nickel hydroxide microtubes with micro- and nano-scale composite structure and improving electrochemical performance
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Fabrication of nickel hydroxide microtubes with micro- and nano-scale composite structure and improving electrochemical performance

机译：具有微米和纳米级复合结构并改善电化学性能的氢氧化镍微管的制备

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The beta-Ni(OH)(2) microtubes with hierarchical structure wall composed of interweaved nanolamella were successfully fabricated by the template-free wet-chemical approach. To the best of our knowledge, it is the first report on Ni(OH)(2) microtubes with the micro- and nanoscale composite structure. This method is very facile and effective to prepare the tubular materials with high yield and uniform tube diameter. The intermediate product and final composite structures were well characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform IR (FTIR), and thermogravimetric analysis (TGA), and the formation mechanism was deeply studied. In comparison with beta-Ni(OH)(2) microrod and particle electrodes, beta-Ni(OH)(2) microtube electrode has the highest discharge capacity in alkaline battery, indicating the potential applications of the microtubes with the hierarchical structures in alkaline Ni-based batteries, supercapacitor, and catalytic areas.
机译：通过无模板湿化学方法成功地制造了由交织的纳米薄片组成的具有分层结构壁的β-Ni（OH）（2）微管。据我们所知，这是关于具有微米级和纳米级复合结构的Ni（OH）（2）微管的第一份报告。该方法非常容易且有效地制备具有高产率和均匀管直径的管状材料。通过X射线衍射（XRD），扫描电子显微镜（SEM），透射电子显微镜（TEM），傅里叶变换IR（FTIR）和热重分析（TGA）对中间产物和最终复合结构进行了很好的表征机理进行了深入研究。与β-Ni（OH）（2）微棒和颗粒电极相比，β-Ni（OH）（2）微管电极在碱性电池中具有最高放电容量，这表明具有分层结构的微管在碱性电池中的潜在应用镍基电池，超级电容器和催化区域。

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