中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 重庆绿色智能技术研究院
  3. 中国科学院重庆绿色智能技术研究院
General surfactant-free synthesis of binary silver chalcogenides with tuneable thermoelectric properties

文献类型：期刊论文

作者Wang, Hengyang4; Liu, Xiaofang4; Zhang, Bin3; Huang, Lisi4; Yang, Meiling4; Zhang, Xiang4; Zhang, Hong4; Wang, Guoyu1; Zhou, Xiaoyuan2,3; Han, Guang4
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2020-08-01
卷号393页码:11
关键词Thermoelectric Silver chalcogenides Solution Synthesis Nanostructure Transmission electron microscopy (TEM)
ISSN号1385-8947
DOI10.1016/j.cej.2020.124763
通讯作者Zhou, Xiaoyuan(xiaoyuan2013@cqu.edu.cn) ; Han, Guang(guang.han@cqu.edu.cn)
英文摘要Binary silver chalcogenides (Ag2X, X = S, Se, Te) are a group of intriguing thermoelectric materials. When utilised for thermoelectrics, however, the syntheses of these chalcogenides commonly require energy-intensive, high-temperature melting-annealing processes. Herein, we have developed a general surfactant-free and scalable solution synthesis strategy to nano/micro-particles of binary silver chalcogenides, which requires neither high temperature nor long reaction duration. The chalcogenide particles were spark plasma sintered into pellets with porous structures. By modifying the Ag+/X2- molar ratios in the solution precursors from 2:1 to 2:1.1, the thermoelectric properties of the pellets have been effectively optimised, leading to maximum ZT values of 0.84 at 380 K for Ag2Se, 0.59 at 650 K for Ag2Te and 0.27 at 540 K for Ag2S that are comparable to those of samples fabricated by other synthetic methods, such as melting and annealing. This study provides a general surfactant-free solution approach to binary silver chalcogenide nano/micro-materials with tuneable thermoelectric properties.
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 the Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University ; Shenzhen Science and Technology Innovation Committee[JCYJ20170818155752559]
WOS研究方向Engineering
语种英语
WOS记录号WOS:000543713600061
出版者ELSEVIER SCIENCE SA
源URL[http://119.78.100.138/handle/2HOD01W0/11385]  
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.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
2.Chongqing Univ, Coll Phys, Chongqing 401331, Peoples R China
3.Chongqing Univ, Analyt & Testing Ctr, Chongqing 401331, Peoples R China
4.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Hengyang,Liu, Xiaofang,Zhang, Bin,et al. General surfactant-free synthesis of binary silver chalcogenides with tuneable thermoelectric properties[J]. CHEMICAL ENGINEERING JOURNAL,2020,393:11.
APA Wang, Hengyang.,Liu, Xiaofang.,Zhang, Bin.,Huang, Lisi.,Yang, Meiling.,...&Han, Guang.(2020).General surfactant-free synthesis of binary silver chalcogenides with tuneable thermoelectric properties.CHEMICAL ENGINEERING JOURNAL,393,11.
MLA Wang, Hengyang,et al."General surfactant-free synthesis of binary silver chalcogenides with tuneable thermoelectric properties".CHEMICAL ENGINEERING JOURNAL 393(2020):11.

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。