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Nitrogen-containing carbon enriched with tungsten atoms prepared by carbonization of polyaniline

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22810%2F21%3A43922650" target="_blank" >RIV/60461373:22810/21:43922650 - isvavai.cz</a>

  • Result on the web

    <a href="https://www-webofscience-com.ezproxy.vscht.cz/wos/woscc/full-record/WOS:000632765100001" target="_blank" >https://www-webofscience-com.ezproxy.vscht.cz/wos/woscc/full-record/WOS:000632765100001</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/s11696-021-01582-2" target="_blank" >10.1007/s11696-021-01582-2</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Nitrogen-containing carbon enriched with tungsten atoms prepared by carbonization of polyaniline

  • Original language description

    Polyaniline (PANI) salts with tungstosilicic (TSA) and phosphotungstic acids (PTA) were prepared by reprotonation of PANI base. Partial protonation of the precursor base was confirmed by Raman spectroscopy and by conductivity measurements. Conductivity of polyaniline tungstosilicate (PANI-TSA) and polyaniline phosphotungstate (PANI-PTA) after reprotonation measured on compressed pellets was found to be 1 × 10–5 S cm−1 and 4 × 10–6 S cm−1, that is significantly higher compared to conductivity of PANI base (⁓ 10–11 S cm–1). According to thermogravimetric and elemental analyses, the amount of heteropolyacids in the resulting salts was ≈ 20 wt%, which corresponded to ≈ 15 wt% of tungsten. Tungsten- and nitrogen-containing carbon derivatives were obtained by carbonization of the prepared PANI salts without losing their conductivity (⁓10–7 S cm–1). Successful carbonization was confirmed by vibrational spectroscopy. Electron microscopy showed that globular morphology typical for PANI base was not affected by reprotonation and carbonization procedures. Elemental analysis confirmed 25.6 and 17.9 wt% of tungsten, 9.7 and 9.6 wt% of nitrogen in the carbonized PANI-PTA and PANI-TSA, respectively. The prepared carbon derivatives can be potentially useful for electrocatalysis. © 2021, Institute of Chemistry, Slovak Academy of Sciences.

  • 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

    10404 - Polymer science

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Chemical Papers

  • ISSN

    0366-6352

  • e-ISSN

  • Volume of the periodical

    75

  • Issue of the periodical within the volume

    10

  • Country of publishing house

    SK - SLOVAKIA

  • Number of pages

    8

  • Pages from-to

    5153-5161

  • UT code for WoS article

    000632765100001

  • EID of the result in the Scopus database

    2-s2.0-85103198160