Study on Preparation and Performance Optimization of Nano-thermoelectric Materials
Graduate School, Nanchang Institute of Technology, Nanchang 330099, China
| Abstract: | Thermoelectric materials have the advantage of direct interaction between thermal energy and electric energy, which has attracted extensive attention. Among them, Bi2Te3-based thermoelectric materials with medium and low temperature have attracted special attention because of their high thermoelectric figure of merit in the room temperature range. Wet chemical method is widely used as an effective method to synthesize nano thermoelectric materials, which has the advantages of simple process equipment, low reaction temperature, low energy consumption and high yield. Therefore, the wet chemical preparation methods of Bi2Te3-based thermoelectric materials are analyzed and studied in this paper. The main methods are low-temperature and low-pressure wet chemical method (conventional low-temperature wet chemical method, microwave-assisted wet chemical method, ultrasonic-assisted wet chemical method) and high-temperature and high-pressure wet chemical method (hydrothermal method, solvothermal method). The phase analysis and micro-morphology analysis of the synthesized products are carried out by means of XRD, SEM and TEM, and the related chemical reaction mechanism in the synthesis process of Bi2Te3-based thermoelectric materials is explored. By changing the experimental conditions, we hope to further optimize the preparation process and analyze the reaction mechanism of chemical synthesis. In this paper, the influence factors of nano-powder morphology are studied by wet chemical method, which is of great significance to prepare Bi2Te3-based thermoelectric materials with controllable structure, good dispersion and high purity. At the same time, the optimization mechanism of thermoelectric transport performance is discussed, and the application prospect and development trend of nano-thermoelectric materials are prospected. |
| Keywords: | Nanostructure; Thermoelectric Material; Preparation Method; Performance Optimization |
| DOI: | 10.57237/j.se.2023.04.002 |
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Received: 25 July 2023
Accepted: 31 August 2023
Published Online: 8 September 2023
References
| [1] | 郭涛, 李硕, 姚雅萱等. Bi-Te基薄膜热电材料的研究进展 [J]. 材料导报, 2022, 36 (04): 135-147. |
| [2] | Lu X, Zheng Q, Gu S, et al. Enhanced TE properties of Cu@Ag/Bi2Te3 nanocomposites by decoupling electrical and thermal properties [J]. Chinese Chemical Letters, 2020, 31 (03): 880-884. |
| [3] | Wang Yanan, Bourgès Cédric, Rajamathi Ralph, et al. The Effect of Reactive Electric Field-Assisted Sintering of MoS2/Bi2Te3 Heterostructure on the Phase Integrity of Bi2Te3 Matrix and the Thermoelectric Properties [J]. Materials Volume, 2021, 15 (1): 53. |
| [4] | 李雨, 杨皓月, 郑睿等. BiCuSeO硒氧化合物的微波超快合成及Bi, Cu空位对化合物电输运性能的影响 [J]. 中国有色金属学报, 2021, 31 (02): 410-418. |
| [5] | Yanhua J, Qinglin J, Hengda S, et al. Wearable Thermoelectric Materials and Devices for Self-Powered Electronic Systems. [J]. Advanced materials (Deerfield Beach, Fla.), 2021, 33 (42). |
| [6] | Gui Tang, Kefeng Cai, Jiaolin Cui, et al. Preparat-ion and thermoelectric properties of MoS2/Bi2Te3 nanocomposites [J]. Ceramics International, 2016, 42 (16): 17972-17977. |
| [7] | Jianping Zheng, Song Chen, et al. Preparation and thermoelectric properties of Bi2SexTe3−x bulk materials [J]. Ceramics International, 2017, 43 (8): 5920-5924. |
| [8] | Xiao-Lei S, Jin Z, Zhi-Gang C. Advanced Thermoelectric Design: From Materials and Structures to Devices. [J]. Chemical reviews, 2020, 120 (15): 7399-7515. |
| [9] | 刘海涛. Bi2Se3基低维纳米材料的生长及物性研究 [D]. 新疆大学, 2018. |
| [10] | 孙霆, 朱铁军, 赵新兵. 纳米结构Bi2Te3化合物的低温湿化学合成 [J]. 化学学报. 2005, 63 (16): 1515. |
| [11] | Saleemi M, Toprak S M, Li S, et al. Synthesis, processing, and thermoelectric properties of bulk nanostructured bismuth telluride (Bi2Te3) [J]. Journal of Materials Chemistry, 2012 (22): 725-730. |
| [12] | R V A, V M S, M V. Tailoring Thermoelectric Properties through Structure and Morphology in Chemically Synthesized n-Type Bismuth Telluride Nanostructures. [J]. Inorganic chemistry, 2017, 56 (11). |
| [13] | 张海宁. 微波湿化学法合成Bi2Se3及Bi2Te3热电材料 (D). 电子科技大学, 2014. |
| [14] | Chen S, Cai K, Shen S. Synthesis via a Microwave-Assisted Wet Chemical Method and Characterization of Bi2Te3 with Various Morphologies [J]. Journal of Electronic Materials, 2016, 45: 1425-1432. |
| [15] | Pradhan S, Das R, Bhar R, et al. A simple fast microwave-assisted synthesis of thermoelectric bismuth telluride nanoparticles from homogeneous reaction-mixture [J]. Journal of Nanoparticle Research, 2017, 19 (2). |
| [16] | Bejan H, Hazal B, Moon P, et al. Minute-Made, High-Efficiency Nanostructu-red Bi2Te3 via High-Throughput Green Solution Chemical Synthesis [J]. Na-nomaterials, 2021, 11 (8): 2053. |
| [17] | Huilin F, Pengcheng M, Hongyu S, et al. Recent advances of metal telluride anodes for high-performance lithium/sodium-ion batteries. [J]. Materials horizons, 2022, 9, 524-546. |
| [18] | Hamta Mansouri. Effect of Hydrothermal Synthesis Te-mperature on the Microstructural and Thermoelectric Characterist-ics of Thermally Deposited Bi0.5Sb1.5Te3 Thin Films [J]. Joumal of Ele-ctronic Materials (2022), 51: 495-507. |
| [19] | Tony Kristiantoro, Dedi, Vivi Fauzia. The influence of Dy concentration on the thermoelectric properties of n-type Dy-doped Bi2Te3 pellets prepared by hydrothermal and carbon burial sintering [J]. Journal of Physics and Chemistry of Solids. 2021, 158: 110241. |
| [20] | Saberi Yasaman; Sajjadi Seyed Abdolkarim; Mansouri Hamta. Comparison of thermoelectric properties of Bi2Te3 and Bi2Se0.3Te2.7 thin film materials synthesized by hydrothermal process and thermal evaporation [J]. Ceramics Internationa, 2021, 47 (8): 11547-11559. |
| [21] | Yuan Wang, Wei-Di Liu, et al. High Porosity in Nanostructured n-Type Bi2Te3 Obtaining Ultralow Lattice Thermal Conductivity [J]. ACS Applied Materials & Interfaces, 2019, 11: 31237-31244. |
| [22] | Deyu Bao, Jie Chen, Yuan Yu, et al. Texture-dependent thermoelectric properties of nano-structured Bi2Te3 [J]. Chemical Engineering Journal, 2020, 388: 124295. |
| [23] | 李晓龙, 周春生, 杨超普等. 热处理对热电Bi2Te2.7Se0.3“纳米花”材料形貌的影响 [J]. 稀有金属材料与工程, 2021, 50 (11): 3966-3969. |
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