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Improved efficiency of liquid-phase shear exfoliation of expanded graphite with mica plates as bifunctional additives
Liang, Bin1,2,3; Liu, Kangwei2,3,4; Liu, Peng2,3,4; Zhao, Guangyao2,3,4; Pan, Weisheng2,3,4; Hu, Shengyu2,3; Cui, Yuanzheng2,3
Corresponding AuthorLiang, Bin(bliang@imr.ac.cn)
2021-12-14
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume9Issue:48Pages:27586-27595
AbstractLiquid-phase shear exfoliation (LPSE) is a potential method of large-scale production of good-quality graphene. Obtaining few-layer (<10) graphene with large lateral sizes and high yields remains a challenging issue. Here, we report an improved LPSE processing method involving the addition of mica plates, which serve as bifunctional agents. With the addition of 100 g L-1 of mica, the LPSE (9000 rpm/0.24 mm/1 h) of expanded graphite offers similar to 100% few-layer graphene with average lateral sizes (ALSs) of similar to 2.8 mu m and yields of up to 27% (the highest ever reported). The graphene produced by LPSE without any additives, however, contains only similar to 77% few-layer nanosheets, and has ALSs of similar to 1.3 mu m and yields of 8%. Significantly, the addition of SiO2 microspheres as a comparison has almost no influence on the LPSE. The mica plates control the vector of fluids in LPSE and guide the oriented arrangement of the layered materials (e.g., expanded graphite), leading to significantly improved LPSE efficiency. 2D transition metal dichalcogenides (TMDs) with improved yields were also successfully prepared using LPSE with the addition of mica.
Funding OrganizationNational Natural Science Foundation of China ; China Postdoctoral Science Foundation
DOI10.1039/d1ta07915h
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51902173] ; China Postdoctoral Science Foundation[2019T120084] ; China Postdoctoral Science Foundation[2018M640123]
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000724955200001
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167536
Collection中国科学院金属研究所
Corresponding AuthorLiang, Bin
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Inst Mat Res, Shenzhen 518055, Peoples R China
3.Tsinghua Univ, Shenzhen Geim Graphene Ctr, Tsinghua Shenzhen Int Grad Sch, Shenzhen Key Lab Power Battery Safety, Shenzhen 518055, Peoples R China
4.Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China
Recommended Citation
GB/T 7714
Liang, Bin,Liu, Kangwei,Liu, Peng,et al. Improved efficiency of liquid-phase shear exfoliation of expanded graphite with mica plates as bifunctional additives[J]. JOURNAL OF MATERIALS CHEMISTRY A,2021,9(48):27586-27595.
APA Liang, Bin.,Liu, Kangwei.,Liu, Peng.,Zhao, Guangyao.,Pan, Weisheng.,...&Cui, Yuanzheng.(2021).Improved efficiency of liquid-phase shear exfoliation of expanded graphite with mica plates as bifunctional additives.JOURNAL OF MATERIALS CHEMISTRY A,9(48),27586-27595.
MLA Liang, Bin,et al."Improved efficiency of liquid-phase shear exfoliation of expanded graphite with mica plates as bifunctional additives".JOURNAL OF MATERIALS CHEMISTRY A 9.48(2021):27586-27595.
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