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A simple energy-saving aqueous synthesis of Bi2Te3 nanocomposites yielding relatively high thermoelectric power factors (FF:HP07)
Ceramics International ( IF 5.1 ) Pub Date : 2019-05-01 , DOI: 10.1016/j.ceramint.2018.08.170
Fei-Hung Lin , Chia-Jyi Liu

Abstract We discover a simple scalable (10 g scale for one batch in this study) route of synthesizing Bi2Te3 nanocomposites in aqueous solution with high yield at room temperature without involving any organic chemicals, capping agents, and surfactants. It is conceivable that the formation mechanism involves interaction between elemental Bi and Te, which takes place at a very slow rate and takes about 2 weeks to form Bi2Te3. Heat treatment of Bi2Te3 nanocomposite yields a single phase of Bi2Te3 with the relatively high power factor of 24.2 μW/cm∙K2 at 425 K compared to other solution methods.

中文翻译:

Bi2Te3 纳米复合材料的简单节能水性合成产生相对较高的热电功率因数 (FF:HP07)

摘要 我们发现了一种简单的可扩展(本研究中,一批规模为 10 g)的路线,可以在室温下在水溶液中以高产率合成 Bi2Te3 纳米复合材料,而不涉及任何有机化学品、封端剂和表面活性剂。可以想象,形成机制涉及元素 Bi 和 Te 之间的相互作用,这种相互作用发生的速度非常慢,形成 Bi2Te3 需要大约 2 周的时间。与其他溶液方法相比,Bi2Te3 纳米复合材料的热处理产生单相 Bi2Te3,在 425K 下具有 24.2 μW/cm∙K2 的相对较高的功率因数。
更新日期:2019-05-01
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