Anomalous elasticity and damping in covalently cross-linked graphene aerogels
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F22%3A00553419" target="_blank" >RIV/67985882:_____/22:00553419 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/22:00553419 RIV/00216208:11310/22:10439409 RIV/68407700:21340/22:00360456
Result on the web
<a href="http://hdl.handle.net/11104/0330530" target="_blank" >http://hdl.handle.net/11104/0330530</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s42005-022-00806-5" target="_blank" >10.1038/s42005-022-00806-5</a>
Alternative languages
Result language
angličtina
Original language name
Anomalous elasticity and damping in covalently cross-linked graphene aerogels
Original language description
Elasticity in materials is a phenomenon that provides a basis for widespread practical applications in engineering, medicine, and electronics. Most of the conventional materials can withstand only small deformations within the elastic limit, typically below 5% of their original size. Here, we report a graphene aerogel made of covalently cross-linked graphene sheets that exhibits anomalous superelastic behavior up to 92% of compressive and 68% tensile strain. We show that the graphene aerogel has a nonlinear stress-strain characteristic with the compressive and tensile yield strength of 4.5 GPa and 0.6 MPa, respectively. By considering the elastic bending of graphene sheets and buckle folding of pore walls, we develop a quantitative origami model that describes the stress-strain behavior of the aerogel. In addition, we analyze the mechanical oscillations of the graphene aerogel, observing superfast vibration damping within a time scale of 50–250 ns.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
COMMUNICATIONS PHYSICS
ISSN
2399-3650
e-ISSN
2399-3650
Volume of the periodical
5
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
27
UT code for WoS article
000744995500001
EID of the result in the Scopus database
2-s2.0-85123223200