Facile microwave-assisted hydrothermal synthesis of SnSe: impurity removal and enhanced thermoelectric properties
文献类型：期刊论文
| 作者 | Sheng, Jiaqi1; Liu, Xiaofang1; Niu, Chengzhi1; Sun, Yufeng1; Chen, Yao1; Wang, Hengyang1; Zhang, Bin3; Wang, Guoyu4 ; Zhou, Xiaoyuan3,5; Han, Guang1,2
|
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY C
 |
| 出版日期 | 2020-08-14 |
| 卷号 | 8期号:30页码:10333-10341 |
| ISSN号 | 2050-7526 |
| DOI | 10.1039/d0tc02068k |
| 通讯作者 | Zhou, Xiaoyuan(xiaoyuan2013@cqu.edu.cn) ; Han, Guang(guang.han@cqu.edu.cn) |
| 英文摘要 | Bottom-up solution synthesis has been considered as a facile and energy-efficient approach for SnSe thermoelectric materials. Herein, we report a microwave-assisted hydrothermal method for the fast and controllable synthesis of SnSe with optimised thermoelectric properties. The NaOH concentration in solution precursors was demonstrated as a key factor influencing the phase composition, diameter, and morphology of the hydrothermal products as well as the thermoelectric properties of the corresponding sintered pellets. It is found that a NaOH : SnCl(2)molar ratio of 30 leads to the formation of phase-pure SnSe microrods, and the pellet constructed from these rods obtains a maximumZTof 1.08 and 0.78 at 773 K in parallel and perpendicular alignments to the pressing direction, respectively. TheseZTvalues are significantly higher than theZTvalue achieved by the pellet that was sintered from the hydrothermal powders prepared without NaOH and comprised the mixed phases of SnSe, SnO2, and SnSe2. This enhancement is primarily due to the improved power factor together with the lower lattice thermal conductivity owing to the significantly reduced fraction of SnO(2)in the pellet. This study not only provides a microwave-assisted solution strategy for the fast, efficient, and controllable synthesis of SnSe materials, but also identifies the key synthesis parameters for securing better thermoelectric performance. |
| 资助项目 | National Natural Science Foundation of China[51802034] ; National Natural Science Foundation of China[11674040] ; National Natural Science Foundation of China[51672270] ; Chongqing Research Program of Basic Research and Frontier Technology[cstc2018jcyjAX0346] ; Fundamental Research Funds for the Central Universities[2019CDQYCL003] ; Chongqing Entrepreneurship and Innovation Program for the Returned Overseas Chinese Scholars[cx2018020] ; Research Funds from Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University[LLEUTS-201802] ; National Training Program of Innovation and Entrepreneurship for Undergraduates[201910611044] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:000556197600017 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/11593]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Zhou, Xiaoyuan; Han, Guang |
| 作者单位 | 1.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China 2.Chongqing Univ, Minist Educ, Key Lab Low Grade Energy Utilizat Technol & Syst, Chongqing 400044, Peoples R China 3.Chongqing Univ, Analyt & Testing Ctr, Chongqing 401331, Peoples R China 4.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 5.Chongqing Univ, Coll Phys, Chongqing 401331, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sheng, Jiaqi,Liu, Xiaofang,Niu, Chengzhi,et al. Facile microwave-assisted hydrothermal synthesis of SnSe: impurity removal and enhanced thermoelectric properties[J]. JOURNAL OF MATERIALS CHEMISTRY C,2020,8(30):10333-10341. |
| APA | Sheng, Jiaqi.,Liu, Xiaofang.,Niu, Chengzhi.,Sun, Yufeng.,Chen, Yao.,...&Han, Guang.(2020).Facile microwave-assisted hydrothermal synthesis of SnSe: impurity removal and enhanced thermoelectric properties.JOURNAL OF MATERIALS CHEMISTRY C,8(30),10333-10341. |
| MLA | Sheng, Jiaqi,et al."Facile microwave-assisted hydrothermal synthesis of SnSe: impurity removal and enhanced thermoelectric properties".JOURNAL OF MATERIALS CHEMISTRY C 8.30(2020):10333-10341. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。