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Facile in situ solution synthesis of SnSe/rGO nanocomposites with enhanced thermoelectric performance

文献类型：期刊论文

作者Huang, Lisi3; Lu, Jianzhang3; Ma, Duowen3; Ma, Chunmiao3; Zhang, Bin4; Wang, Hengyang3; Wang, Guoyu2; Gregory, Duncan H.6; Zhou, Xiaoyuan4,5; Han, Guang1,3
刊名JOURNAL OF MATERIALS CHEMISTRY A
出版日期2020-01-21
卷号8期号:3页码:1394-1402
ISSN号2050-7488
DOI10.1039/c9ta11737g
通讯作者Zhou, Xiaoyuan(xiaoyuan2013@cqu.edu.cn) ; Han, Guang(guang.han@cqu.edu.cn)
英文摘要Constructing nanostructured composite architectures has been considered as an effective strategy to reduce the lattice thermal conductivity (kappa(L)) and enhance the dimensionless figure of merit (ZT) of thermoelectric materials. Herein, a series of SnSe/reduced graphene oxide (rGO)-x (x = 0.1, 0.3, 0.5, 0.7 wt%) nanocomposites are controllably synthesised in situ via a facile single-step bottom-up solution method, where rGO nanosheets are incorporated intimately into the SnSe matrix. Nanocompositing performs two key functions: (i) significantly reducing the lattice thermal conductivity of the material, which can be attributed to enhanced phonon scattering from high-density SnSe/rGO interfaces, and (ii) improving the electrical conductivity over the low temperature range, as result of an increased carrier concentration. The subsequent thermoelectric performance of SnSe/rGO sintered pellets has been optimised by tuning the rGO mass fraction, with SnSe/rGO-0.3 achieving kappa(L) = 0.36 W m(-1) K-1 at 773 K (cutting the kappa(L) of SnSe by 33%) to yield a maximum ZT of 0.91 at 823 K (representing a similar to 47% increase compared to SnSe). This study provides a new pathway to improve the thermoelectric performance of polycrystalline SnSe by way of engineering metal chalcogenide/rGO composite architectures at the nanoscale.
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] ; Chongqing Entrepreneurship and Innovation Program for the Returned Overseas Chinese Scholars[cx2018020] ; Fundamental Research Funds for the Central Universities[2019CDQYCL003] ; 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[201810611045] ; Shenzhen Science and Technology Innovation Committee[JCYJ20170818155752559] ; EPSRC[EP/P510968/1]
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science
语种英语
WOS记录号WOS:000508855700048
出版者ROYAL SOC CHEMISTRY
源URL[http://119.78.100.138/handle/2HOD01W0/10170]  
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, Minist Educ, Key Lab Low Grade Energy Utilizat Technol & Syst, Chongqing 400044, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
3.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
4.Chongqing Univ, Analyt & Testing Ctr, Chongqing 401331, Peoples R China
5.Chongqing Univ, Coll Phys, Chongqing 401331, Peoples R China
6.Univ Glasgow, Sch Chem, WestCHEM, Glasgow G12 8QQ, Lanark, Scotland
推荐引用方式
GB/T 7714		 Huang, Lisi,Lu, Jianzhang,Ma, Duowen,et al. Facile in situ solution synthesis of SnSe/rGO nanocomposites with enhanced thermoelectric performance[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020,8(3):1394-1402.
APA Huang, Lisi.,Lu, Jianzhang.,Ma, Duowen.,Ma, Chunmiao.,Zhang, Bin.,...&Han, Guang.(2020).Facile in situ solution synthesis of SnSe/rGO nanocomposites with enhanced thermoelectric performance.JOURNAL OF MATERIALS CHEMISTRY A,8(3),1394-1402.
MLA Huang, Lisi,et al."Facile in situ solution synthesis of SnSe/rGO nanocomposites with enhanced thermoelectric performance".JOURNAL OF MATERIALS CHEMISTRY A 8.3(2020):1394-1402.

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来源：重庆绿色智能技术研究院

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