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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10403 - Physical chemistry

Result continuities

  • Project

  • 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

  • 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

  • UT code for WoS article

    000427111300008

  • EID of the result in the Scopus database

    2-s2.0-85040785961