Discovery of new sustainable thermoelectric materials

新型可持续热电材料的发现

• 批准号: 2883195
• 金额: --
• 依托单位: University of St Andrews
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2883195
• 关键词: Discovery; new; sustainable; thermoelectric; materials

The project will deal with the "Discovery of new sustainable thermoelectric materials". The systems to be investigated will be ZnxTi1-xNiSb, ZnxTi1-xNiSn, ZnxTi1-xNiSbSn and TiNiSixGeySnz. Depending on the results thesystems can be adjusted, or other systems could be added.The materials will be synthesised at high temperatures in furnaces. The starting materials will be carried under inert gasconditions in a glove box. Glass ampoules will be prepared and sealed. Usage of hot- and cold-press will be carried out.Analysis of the obtained samples will be done with various techniques.First the synthesised samples must be characterised with usage of e.g x-ray and neutron diffraction methods. As thermoelectric materials convert a temperature gradient into an electrical current, the thermal and electronic transportproperties are of interest and will be analysed. The aim is to achieve a more sustainable material. To achieve this, temperature dependent parameters, i.e. Seebeck coefficientS, density , thermal conductivity and diffusivity and specific heat capacity , should be optimised. Overall the aim is a betterfigure of merit zT.

该项目将处理“发现新的可持续热电材料”。要研究的系统将是Znxti1-Xnisb，Znxti1-Xnisn，Znxti1-Xnisbsn和Tinisixgeysnz。根据结果​​，可以调整该系统，也可以添加其他系统。将在炉中高温下合成材料。起始材料将在杂物盒中的惰性气压下进行。玻璃安培将准备并密封。将使用各种技术进行对样品的分析。首先，必须使用使用X射线和中子衍射方法来表征合成的样品。由于热电材料将温度梯度转换为电流，因此感兴趣的热和电子传输植物会被分析。目的是获得更可持续的材料。为了实现这一目标，应优化与温度相关的参数，即Seebeck系数，密度，导热率和扩散率和特定的热容量。总体而言，目的是优异ZT的更好形象。