Title | Solid-State Janus Nanoprecipitation Enables Amorphous-Like Heat Conduction in Crystalline Mg3Sb2-Based Thermoelectric Materials |
Author | |
Corresponding Author | Yu, Yuan; Eklund, Per; Liu, Weishu |
Publication Years | 2022-07-01
|
DOI | |
Source Title | |
EISSN | 2198-3844
|
Volume | 9 |
Abstract | Solid-state precipitation can be used to tailor material properties, ranging from ferromagnets and catalysts to mechanical strengthening and energy storage. Thermoelectric properties can be modified by precipitation to enhance phonon scattering while retaining charge-carrier transmission. Here, unconventional Janus-type nanoprecipitates are uncovered in Mg3Sb1.5Bi0.5 formed by side-by-side Bi- and Ge-rich appendages, in contrast to separate nanoprecipitate formation. These Janus nanoprecipitates result from local comelting of Bi and Ge during sintering, enabling an amorphous-like lattice thermal conductivity. A precipitate size effect on phonon scattering is observed due to the balance between alloy-disorder and nanoprecipitate scattering. The thermoelectric figure-of-merit ZT reaches 0.6 near room temperature and 1.6 at 773 K. The Janus nanoprecipitation can be introduced into other materials and may act as a general property-tailoring mechanism. |
Keywords | |
URL | [Source Record] |
Indexed By | |
Language | English
|
SUSTech Authorship | First
; Corresponding
|
Funding Project | National Key Research and Development Program of China[2018YFB0703600]
; National Natural Science Foundation of China[51872133]
; Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06G587]
; Guangdong Provincial Key Laboratory Program from the Department of Science and Technology of Guangdong Province[2021B1212040001]
; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFO-Mat-LiU)[2009 00971]
; Knut and Alice Wallenberg foundation through the Wallenberg Academy Fellows program[KAW-2020.0196]
; Swedish Foundation for Strategic Research (SSF)[RIF 14-0074]
; German Science Foundation (DFG)[SFB 917]
|
WOS Research Area | Chemistry
; Science & Technology - Other Topics
; Materials Science
|
WOS Subject | Chemistry, Multidisciplinary
; Nanoscience & Nanotechnology
; Materials Science, Multidisciplinary
|
WOS Accession No | WOS:000826658200001
|
Publisher | |
EI Accession Number | 20223112455398
|
EI Keywords | Antimony compounds
; Heat conduction
; Magnesium compounds
; Phonon scattering
; Phonons
; Precipitation (chemical)
; Thermal conductivity
; Thermoelectric equipment
; Thermoelectricity
|
ESI Classification Code | Thermoelectric Energy:615.4
; Thermodynamics:641.1
; Heat Transfer:641.2
; Electricity: Basic Concepts and Phenomena:701.1
; Chemical Operations:802.3
|
Data Source | Web of Science
|
Citation statistics |
Cited Times [WOS]:5
|
Document Type | Journal Article |
Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/356223 |
Department | Department of Materials Science and Engineering 理学院_物理系 |
Affiliation | 1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China 2.Linkoping Univ, Dept Phys Chem & Biol IFM, Thin Film Phys Div, SE-58183 Linkoping, Sweden 3.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China 4.Rhein Westfal TH Aachen, Phys Inst IA 1, Sommerfeldstr 14, D-52074 Aachen, Germany 5.Southern Univ Sci & Technol, Guangdong Prov Key Lab Funct Oxide Mat & Devices, Shenzhen 518055, Guangdong, Peoples R China |
First Author Affilication | Department of Materials Science and Engineering |
Corresponding Author Affilication | Department of Materials Science and Engineering; Southern University of Science and Technology |
First Author's First Affilication | Department of Materials Science and Engineering |
Recommended Citation GB/T 7714 |
Shu, Rui,Han, Zhijia,Elsukova, Anna,et al. Solid-State Janus Nanoprecipitation Enables Amorphous-Like Heat Conduction in Crystalline Mg3Sb2-Based Thermoelectric Materials[J]. ADVANCED SCIENCE,2022,9.
|
APA |
Shu, Rui.,Han, Zhijia.,Elsukova, Anna.,Zhu, Yongbin.,Qin, Peng.,...&Liu, Weishu.(2022).Solid-State Janus Nanoprecipitation Enables Amorphous-Like Heat Conduction in Crystalline Mg3Sb2-Based Thermoelectric Materials.ADVANCED SCIENCE,9.
|
MLA |
Shu, Rui,et al."Solid-State Janus Nanoprecipitation Enables Amorphous-Like Heat Conduction in Crystalline Mg3Sb2-Based Thermoelectric Materials".ADVANCED SCIENCE 9(2022).
|
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