CAS OpenIR
Ultralow thermal conductivity in graphene-silica porous ceramics with a special saucer structure of graphene aerogels
Fan, Junmei1; Hui, Si2; Bailey, Trevor P.2; Page, Alexander2; Uher, Ctirad2; Yuan, Fangli1
2019-01-28
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume7Issue:4Pages:1574-1584
AbstractIn our work, a unique saucer structure of graphene aerogels in the form of graphene sheets (nearly 10 m) is designed to grow them in situ on hollow silica spheres that are connected to their neighbors by C-O and C-Si bonds after fabrication by spark plasma sintering (SPS). The graphene-silica porous ceramics (GSPCs) are characterized by Fourier transform infrared (FTIR), Raman and X-ray photoelectron (XPS) spectroscopies. The mechanism of metal-catalyst-free method for the direct synthesis of graphene aerogels in the form of large-size graphene sheets on hollow spheres is studied. Compared to other ceramics, GSPCs have an ultralow thermal conductivity (0.054-0.057 W m(-1) K-1 at room temperature (RT) and 0.038 W m(-1) K-1 at 90 K) and a relatively high compressive strength (7.4 MPa), which depends on the special saucer structure of the graphene aerogels and their high porosity (89.63%). We additionally find that the temperature dependence of the thermal conductivity is altered by the content of graphene aerogels.
DOI10.1039/c8ta10426c
Language英语
WOS KeywordPLASMA-SINTERING SPS ; CARBON CONTAMINATION ; AGGREGATION ; INSULATION ; REDUCTION ; INTERFACE ; OXIDATION ; MGAL2O4 ; SPHERES ; SPINEL
Funding ProjectNational Natural Science Foundation of China[51574211]
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China
WOS IDWOS:000459724300020
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28352
Collection中国科学院过程工程研究所
Corresponding AuthorFan, Junmei; Yuan, Fangli
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multi Phase Complex Syst, Beijing 100190, Peoples R China
2.Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
Recommended Citation
GB/T 7714
Fan, Junmei,Hui, Si,Bailey, Trevor P.,et al. Ultralow thermal conductivity in graphene-silica porous ceramics with a special saucer structure of graphene aerogels[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(4):1574-1584.
APA Fan, Junmei,Hui, Si,Bailey, Trevor P.,Page, Alexander,Uher, Ctirad,&Yuan, Fangli.(2019).Ultralow thermal conductivity in graphene-silica porous ceramics with a special saucer structure of graphene aerogels.JOURNAL OF MATERIALS CHEMISTRY A,7(4),1574-1584.
MLA Fan, Junmei,et al."Ultralow thermal conductivity in graphene-silica porous ceramics with a special saucer structure of graphene aerogels".JOURNAL OF MATERIALS CHEMISTRY A 7.4(2019):1574-1584.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Fan, Junmei]'s Articles
[Hui, Si]'s Articles
[Bailey, Trevor P.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Fan, Junmei]'s Articles
[Hui, Si]'s Articles
[Bailey, Trevor P.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Fan, Junmei]'s Articles
[Hui, Si]'s Articles
[Bailey, Trevor P.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.