Fast and facile synthesis of Sb-doped Mg2Si0.5Sn0.5 solid solutions with decent thermoelectric performance
Fast and facile synthesis of Sb-doped Mg2Si0.5Sn0.5 solid solutions with decent thermoelectric performance
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快速、简便地合成具有良好热电性能的 Sb 掺杂 Mg2Si0.5Sn0.5 固溶体
DOI：
10.1016/j.matlet.2019.05.095
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发表时间：
2019-10
影响因子：
3
通讯作者：
Xu Bingshe
中科院分区：
文献类型：
--
作者：
Zhang Qiang;Fan Jianfeng;Fan Wenhao;Zhang Hua;Chen Shaoping;Wu Yucheng;Tang Xinfeng;Xu Bingshe
采用快速热爆反应法首次成功制备了Sb掺杂Mg2Si0.5Sn0.5材料。X射线衍射（XRD）分析表明，该方法可以将0.5Mg2Si-0.5Mg2Sn的不溶成分转变为单相Mg2Si0.5Sn0.5固溶体。随着Sb含量的增加，无量纲热电优值ZTpeak（峰值）和ZTave（平均值）都有很大的提高，与其它方法得到的值相当甚至更好。更重要的是，这种简单的制造技术具有吸引人的优点，如高的时间和能源效率，低成本和大规模生产的潜力。这为以后镁基材料和功能材料的合成奠定了重要的基础。
Sb-doped Mg2Si0.5Sn0.5materials were successfully prepared by a fast thermal explosion reaction for the first time. X-ray diffraction (XRD) patterns indicate that this new method easily converts the immiscible composition of 0.5Mg2Si-0.5Mg2Sn into a single-phase Mg2Si0.5Sn0.5solid solution. With Sb content increasing, the dimensionless thermoelectric figure of meritZTpeak(peak value) andZTave(average value) are greatly improved, which are quite comparable to or even better than the values obtained by other methods. More importantly, this facile fabrication technique possesses attractive merits, such as high time- and energy-efficiency, low cost and the potential of mass production. Hence, a significant foundation has been laid for the future synthesis of other Mg-based and functional materials.
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发表时间：
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影响因子：
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