Enhancement of electrical conductivity and stability of polypyrrole by intercalation into montmorillonite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F19%3A10239179" target="_blank" >RIV/61989100:27360/19:10239179 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27640/19:10239179 RIV/61989100:27740/19:10239179

Výsledek na webu

<a href="https://www.nanocon.eu/files/uploads/01/NANOCON2018%20-%20Conference%20Proceedings_content.pdf" target="_blank" >https://www.nanocon.eu/files/uploads/01/NANOCON2018%20-%20Conference%20Proceedings_content.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Enhancement of electrical conductivity and stability of polypyrrole by intercalation into montmorillonite

Popis výsledku v původním jazyce

Montmorillonite (MMT) was intercalated by electrically conducting polymer polypyrrole (PPYR) to obtain nanocomposites with enhanced electrical conductivity and stability in comparison with pure PPYR. Powder samples were prepared via oxidative polymerization of pyrrole in aqueous solution using oxidizing agent FeCl3. Two nanocomposites MMT/PPYR_1 and MMT/PPYR_2 containing 32 wt.% and 45 wt.% of PPYR, respectively, were prepared and characterized. Composition of the samples was studied using elemental analysis and XRFS, and amount of PPYR in each nanocomposite was calculated from TGA results. Intercalation rate was monitored by XRD. Raman spectroscopy was used to characterize the PPYR in the samples. Electrical measurements performed over 700 days revealed the course of changes in conductivity. Comparison of conductivities of samples showed enhancement of the conductivity and its preservation in the case of nanocomposites. The enhancement was observed throughout the whole testing period, the nanocomposites constantly exhibited higher conductivity compared to PPYR.

Název v anglickém jazyce

Enhancement of electrical conductivity and stability of polypyrrole by intercalation into montmorillonite

Popis výsledku anglicky

Montmorillonite (MMT) was intercalated by electrically conducting polymer polypyrrole (PPYR) to obtain nanocomposites with enhanced electrical conductivity and stability in comparison with pure PPYR. Powder samples were prepared via oxidative polymerization of pyrrole in aqueous solution using oxidizing agent FeCl3. Two nanocomposites MMT/PPYR_1 and MMT/PPYR_2 containing 32 wt.% and 45 wt.% of PPYR, respectively, were prepared and characterized. Composition of the samples was studied using elemental analysis and XRFS, and amount of PPYR in each nanocomposite was calculated from TGA results. Intercalation rate was monitored by XRD. Raman spectroscopy was used to characterize the PPYR in the samples. Electrical measurements performed over 700 days revealed the course of changes in conductivity. Comparison of conductivities of samples showed enhancement of the conductivity and its preservation in the case of nanocomposites. The enhancement was observed throughout the whole testing period, the nanocomposites constantly exhibited higher conductivity compared to PPYR.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

NANOCON 2018 : 10th Anniversary International Conference on Nanomaterials - research &amp; application : conference proceedings : peer reviewed : October 17th-19th 2018, Hotel Voroněž I, Brno, Czech Republic, EU

ISBN

978-80-87294-89-5

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

220-225

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

17. 10. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000513131900038