中文版 | English
Title

Solid-State Janus Nanoprecipitation Enables Amorphous-Like Heat Conduction in Crystalline Mg3Sb2-Based Thermoelectric Materials

Author
Corresponding AuthorYu, Yuan; Eklund, Per; Liu, Weishu
Publication Years
2022-07-01
DOI
Source Title
EISSN
2198-3844
Volume9
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
SCI ; EI
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 TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/356223
DepartmentDepartment 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 AffilicationDepartment of Materials Science and Engineering
Corresponding Author AffilicationDepartment of Materials Science and Engineering;  Southern University of Science and Technology
First Author's First AffilicationDepartment 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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