Effect of montmorillonite/polypyrrole ratio and oxidizing agent on structure and electrical conductivity of intercalated nanocomposites
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F19%3A10239599" target="_blank" >RIV/61989100:27360/19:10239599 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/61989100:27640/19:10239599 RIV/61989100:27740/19:10239599
Výsledek na webu
<a href="https://www.sciencedirect.com/science/article/pii/S0169131718305179" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0169131718305179</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.clay.2018.12.015" target="_blank" >10.1016/j.clay.2018.12.015</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Effect of montmorillonite/polypyrrole ratio and oxidizing agent on structure and electrical conductivity of intercalated nanocomposites
Popis výsledku v původním jazyce
Polypyrrole/montmorillonite (PPy/Mt) nanocomposites with different amount of PPy were prepared using two different oxidizing agents, ammonium peroxydisulfate and ferric chloride. The nanocomposites in powder form were studied using thermogravimetry, X-ray powder diffraction, infrared and Raman spectroscopy, molecular modeling, and electrical measurements. Structure and conductivity of the nanocomposites in dependence on the PPy amount and the oxidizing agent used were compared with pristine PPy samples. Use of ferric chloride led to the conductivity two orders of magnitude higher in comparison with ammonium peroxydisulfate. Molecular modeling revealed regular arrangement of PPy chains in Mt interlayer space and higher intercalation rate for samples prepared using ferric chloride. Tablets pressed from the nanocomposites exhibit anisotropy in electrical conductivity. Surface morphology of the tablets was studied using atomic force microscopy. For PPy amount ~32 mass%, the highest conductivity (49 S/m) and anisotropy factor (224) were reached. Possible use of the tablets as pressure sensors was demonstrated.
Název v anglickém jazyce
Effect of montmorillonite/polypyrrole ratio and oxidizing agent on structure and electrical conductivity of intercalated nanocomposites
Popis výsledku anglicky
Polypyrrole/montmorillonite (PPy/Mt) nanocomposites with different amount of PPy were prepared using two different oxidizing agents, ammonium peroxydisulfate and ferric chloride. The nanocomposites in powder form were studied using thermogravimetry, X-ray powder diffraction, infrared and Raman spectroscopy, molecular modeling, and electrical measurements. Structure and conductivity of the nanocomposites in dependence on the PPy amount and the oxidizing agent used were compared with pristine PPy samples. Use of ferric chloride led to the conductivity two orders of magnitude higher in comparison with ammonium peroxydisulfate. Molecular modeling revealed regular arrangement of PPy chains in Mt interlayer space and higher intercalation rate for samples prepared using ferric chloride. Tablets pressed from the nanocomposites exhibit anisotropy in electrical conductivity. Surface morphology of the tablets was studied using atomic force microscopy. For PPy amount ~32 mass%, the highest conductivity (49 S/m) and anisotropy factor (224) were reached. Possible use of the tablets as pressure sensors was demonstrated.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20500 - Materials engineering
Návaznosti výsledku
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
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Applied Clay Science
ISSN
0169-1317
e-ISSN
—
Svazek periodika
168
Číslo periodika v rámci svazku
February 2019
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
10
Strana od-do
459-468
Kód UT WoS článku
000455692700049
EID výsledku v databázi Scopus
2-s2.0-85058622933