Ultra-low energy processing of graphite: A fast-track journey towards carbon neutrality
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F22%3A10450605" target="_blank" >RIV/00216208:11310/22:10450605 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=CpygidcVk7" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=CpygidcVk7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apmt.2022.101594" target="_blank" >10.1016/j.apmt.2022.101594</a>
Alternative languages
Result language
angličtina
Original language name
Ultra-low energy processing of graphite: A fast-track journey towards carbon neutrality
Original language description
Graphite is a fascinating material with unique properties, thus making it irreplaceable for a wide range of applications. However, its current processing route is highly energy demanding as it requires dwelling for several hours at high temperatures (2500-3000 °C). We report on the near full consolidation (relative density greater than 95%) at room temperature of graphite flakes under a mild uniaxial or isostatic pressure (100-500 MPa). The application of an external pressure promoted the formation of van der Walls bonds between the flakes, and the consolidation (pore removal) was mostly achieved by interplanar slipping. Despite the room temperature processing, with embodied energy below 1 MJ/kg, the resulting compact had in plane electrical and thermal conductivities as high as 0.77x10(6) S/m and 620 W/m.K (exceeding commercial isotropic graphite approximate to 0.09x10(6) S/m and 120 W/m.K). The bulks were thermally stable up to 1800 °C. Because of the reversible nature on the van der Walls bonding, the cold pressed pellets were fully recyclable (i.e., easily milled and re-shaped) with a mild degradation of the electrical conductivity from 0.77 to 0.19x10(6) S/m after ten cycles.
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
10402 - Inorganic and nuclear chemistry
Result continuities
Project
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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
Applied Materials Today [online]
ISSN
2352-9407
e-ISSN
2352-9407
Volume of the periodical
29
Issue of the periodical within the volume
December
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
101594
UT code for WoS article
000880657300001
EID of the result in the Scopus database
2-s2.0-85135314864