Stevensite-rich Moroccan clay intercalated by polypyrrole: towards the enhancement of electrical conductivity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F19%3A10236133" target="_blank" >RIV/61989100:27360/19:10236133 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27640/19:10236133 RIV/61989100:27740/19:10236133

Výsledek na webu

<a href="https://www.ingentaconnect.com/content/asp/jnn/2019/00000019/00000005/art00048%3bjsessionid=23wheeg5jtmss.x-ic-live-03" target="_blank" >https://www.ingentaconnect.com/content/asp/jnn/2019/00000019/00000005/art00048%3bjsessionid=23wheeg5jtmss.x-ic-live-03</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1166/jnn.2019.15875" target="_blank" >10.1166/jnn.2019.15875</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Stevensite-rich Moroccan clay intercalated by polypyrrole: towards the enhancement of electrical conductivity

Popis výsledku v původním jazyce

Regularly arranged chains strongly affect the electrical conductivity of conductive polymers (e.g., polypyrrole). One of the easiest ways to achieve this arrangement is the insertion of the polymer into the interlayer space of solid inorganic layered matrix, i.e., the intercalation process. Among various kinds of layered materials, the clay minerals, especially the smectite group, deserves particular attention. Negative charge of smectite layers helps the intercalation process resulting in higher conductivity of the polymer in clay/polymer intercalates. Characterization of stevensite-rich Moroccan clay (denoted as STE) and intercalation of electrically conductive polypyrrole (PPY) into STE in order to obtain material with higher conductivity in comparison with pure PPY were two main purposes of this work. Two forms of STE/PPY nanocomposites were studied: powder and pressed tablets. X-ray fluorescence spectroscopy, X-ray diffraction analysis, atomic force microscopy, thermogravimetry, infrared spectroscopy, Raman microspectroscopy, and scanning electron microscopy in conjunction with energy dispersive X-ray spectroscopy were used to study the composition and structure of the nanocomposites. Measurement of electrical conductivity of PPY in STE/PPY nanocomposites revealed enhanced conductivity for all samples and also anisotropy in the conductivity of the samples pressed in the tablets.

Název v anglickém jazyce

Stevensite-rich Moroccan clay intercalated by polypyrrole: towards the enhancement of electrical conductivity

Popis výsledku anglicky

Regularly arranged chains strongly affect the electrical conductivity of conductive polymers (e.g., polypyrrole). One of the easiest ways to achieve this arrangement is the insertion of the polymer into the interlayer space of solid inorganic layered matrix, i.e., the intercalation process. Among various kinds of layered materials, the clay minerals, especially the smectite group, deserves particular attention. Negative charge of smectite layers helps the intercalation process resulting in higher conductivity of the polymer in clay/polymer intercalates. Characterization of stevensite-rich Moroccan clay (denoted as STE) and intercalation of electrically conductive polypyrrole (PPY) into STE in order to obtain material with higher conductivity in comparison with pure PPY were two main purposes of this work. Two forms of STE/PPY nanocomposites were studied: powder and pressed tablets. X-ray fluorescence spectroscopy, X-ray diffraction analysis, atomic force microscopy, thermogravimetry, infrared spectroscopy, Raman microspectroscopy, and scanning electron microscopy in conjunction with energy dispersive X-ray spectroscopy were used to study the composition and structure of the nanocomposites. Measurement of electrical conductivity of PPY in STE/PPY nanocomposites revealed enhanced conductivity for all samples and also anisotropy in the conductivity of the samples pressed in the tablets.

Druh

J_imp - Článek v periodiku v databázi Web of Science

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 periodika

Journal of nanoscience and nanotechnology

ISSN

1533-4880

e-ISSN

—

Svazek periodika

19

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

2821-2832

Kód UT WoS článku

000458402700048

EID výsledku v databázi Scopus

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