New Layered Triazine Framework/Exfoliated 2D Polymer with Superior Sodium-Storage Properties
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10386131" target="_blank" >RIV/00216208:11310/18:10386131 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/adma.201705401" target="_blank" >https://doi.org/10.1002/adma.201705401</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/adma.201705401" target="_blank" >10.1002/adma.201705401</a>
Alternative languages
Result language
angličtina
Original language name
New Layered Triazine Framework/Exfoliated 2D Polymer with Superior Sodium-Storage Properties
Original language description
The efficient synthesis of 2D polymers (2DPs) with tailorable structures and properties is highly desired but remains a considerable challenge. Here, the first solution synthesis of millimeter-size crystalline covalent triazine frameworks (CTFs) with a clear lamellar structure, which can be exfoliated into micrometer-size few-layer 2DP sheets via both micromechanical cleavage and liquid sonication, is reported. The obtained CTFs or 2DPs show a unique staggered AB stacking with a dominant pore size of approximate to 0.6 nm, which is different from the common eclipsed AA stacking in various covalent organic frameworks. The preference for AB stacking is due to the specific interaction of triflic acid with CTFs as revealed computationally. When explored as new polymeric anodes for sodium-ion batteries, both crystalline bulk CTF and exfoliated 2DP exhibit very high capacities (225 and 262 mA h g(-1) at 0.1 A g(-1), respectively), impressive rate capabilities (67 and 119 mA h g(-1) at 5.0 A g(-1), respectively), and excellent cycling stability (95% capacity retention after 1200 cycles) due to their robust conjugated porous structure, outperforming most organic/polymeric sodium-ion battery anodes ever reported.
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
10403 - Physical chemistry
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced Materials
ISSN
0935-9648
e-ISSN
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Volume of the periodical
30
Issue of the periodical within the volume
11
Country of publishing house
DE - GERMANY
Number of pages
8
Pages from-to
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UT code for WoS article
000427111300008
EID of the result in the Scopus database
2-s2.0-85040785961