Liu Yucen, Zhi Jun, Li Wannuo, Yang Qian, Zhang Long, Zhang Yuqiao
Institute of Quantum and Sustainable Technology (IQST), School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
Foshan (Southern China) Institute for New Materials, Foshan 528200, China.
Molecules. 2023 Aug 5;28(15):5894. doi: 10.3390/molecules28155894.
Thermoelectric technology has emerged as a prominent area of research in the past few decades for harnessing waste heat and improving the efficiency of next-generation renewable energy technologies. There has been rapid progress in the development of high-performance thermoelectric materials, as measured by the dimensionless figure of merit ( = · · ). Several heavy-metal-based thermoelectric materials with commercial-level performance ( = 1) have so far been proposed. However, the extensive application of these materials still faces challenges due to their low thermal/chemical stability, high toxicity, and limited abundance in the Earth's crust. In contrast, oxide-based thermoelectric materials, such as ZnO, SrTiO, layered cobalt oxides, etc., have attracted growing interest as they can overcome the limitations of their heavy-metal-based counterparts. In this review, we summarize the recent research progress and introduce improvement strategies in oxide-based thermoelectric materials. This will provide an overview of their development history and design schemes, ultimately aiding in enhancing the overall performance of oxide-based thermoelectric materials.
在过去几十年中，热电技术已成为一个重要的研究领域，用于回收废热并提高下一代可再生能源技术的效率。通过无量纲品质因数（= · · ）衡量，高性能热电材料的开发取得了快速进展。迄今为止，已经提出了几种具有商业级性能（= 1）的重金属基热电材料。然而，由于这些材料的热/化学稳定性低、毒性高以及在地壳中的丰度有限，它们的广泛应用仍然面临挑战。相比之下，基于氧化物的热电材料，如ZnO、SrTiO、层状钴氧化物等，因其能够克服重金属基对应材料的局限性而受到越来越多的关注。在这篇综述中，我们总结了基于氧化物的热电材料的最新研究进展，并介绍了改进策略。这将概述它们的发展历史和设计方案，最终有助于提高基于氧化物的热电材料的整体性能。
