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Inner Surface-Functionalized Graphene Aerogel Microgranules with Static Microwave Attenuation and Dynamic Infrared Shielding
Wu, Xiaohan1,2; Lyu, Jing1; Hong, Guo3; Liu, Xiang-cui4; Zhang, Xuetong1
2018-07-31
Source PublicationLANGMUIR
ISSN0743-7463
Volume34Issue:30Pages:9004-9014
Abstract

Bulk graphene aerogels with high electrical conductivity, ultralow density, and high specific surface area have attracted significant attention because of their fascinating performances in energy storage, catalysis, absorption, sensor, electromagnetic shielding, etc. However, graphene aerogel microgranules (i.e., reducing the size of the bulk aerogels into microscale) and their performances in the electromagnetic field have been ignored. Herein, we report a new strategy to make floatable graphene aerogel microgranules with high hydrophobicity (137 degrees), low density (13.5 mg/cm(3)), and high specific surface area (516 m(2)/g). These microgranules were synthesized initially from reduced graphene oxide (rGO) hydrogel microparticles and then in situ-modified by silica nanoparticles. Further investigations have demonstrated that the resulting silica-modified rGO aerogel microgranules possess highly efficient static electromagnetic screening (average 30.3 dB in 8-18 GHz) and dynamic infrared shielding (higher than 10 dB during floatation in air for 15 min) properties. The work reported here should give much inspiration to make more functional aerogel microgranules used in various emerging fields.

DOI10.1021/acs.langmuir.8b01410
URLView the original
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000440768400032
PublisherAMER CHEMICAL SOC
The Source to ArticleWOS
Fulltext Access
Citation statistics
Cited Times [WOS]:5   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Affiliation1.Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, P. R. China
2.University of Chinese Academy of Sciences, Beijing 10000, P. R. China
3.Institute of Applied Physics and Materials Engineering, University of Macau, Macao N/A, P. R. China
4.Research Institute of Chemical Defence, Beijing 102205, P. R. China
Recommended Citation
GB/T 7714
Wu, Xiaohan,Lyu, Jing,Hong, Guo,et al. Inner Surface-Functionalized Graphene Aerogel Microgranules with Static Microwave Attenuation and Dynamic Infrared Shielding[J]. LANGMUIR,2018,34(30):9004-9014.
APA Wu, Xiaohan,Lyu, Jing,Hong, Guo,Liu, Xiang-cui,&Zhang, Xuetong.(2018).Inner Surface-Functionalized Graphene Aerogel Microgranules with Static Microwave Attenuation and Dynamic Infrared Shielding.LANGMUIR,34(30),9004-9014.
MLA Wu, Xiaohan,et al."Inner Surface-Functionalized Graphene Aerogel Microgranules with Static Microwave Attenuation and Dynamic Infrared Shielding".LANGMUIR 34.30(2018):9004-9014.
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