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

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>

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

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10404 - Polymer science

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

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

Name of the periodical

Chemical Papers

ISSN

0366-6352

e-ISSN

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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