Polyaniline as a precursor of multi-layer graphene: Microscopic and microspectroscopic study

Kód výsledku v IS VaVaI

RIV/61989100:27360/19:10239533 - isvavai.cz

Nalezeny alternativní kódy

RIV/61989100:27640/19:10239533 RIV/61989100:27740/19:10239533

Výsledek na webu

https://www.ingentaconnect.com/contentone/asp/jnn/2019/00000019/00000012/art00030

DOI - Digital Object Identifier

10.1166/jnn.2019.15878

Jazyk výsledku

angličtina

Název v původním jazyce

Polyaniline as a precursor of multi-layer graphene: Microscopic and microspectroscopic study

Popis výsledku v původním jazyce

Aluminosilicate-based nanocomposites containing multi-layer graphene were prepared from polyaniline/montmorillonite intercalate in two different forms: tablets and thin layers. Starting materials, polyaniline/montmorillonite powder and polyaniline/montmorillonite layers deposited on quartz glass, were prepared by in situ polymerization of aniline in presence of montmorillonite particles.Powder was compacted into tablets using pressure 400 MPa. Samples were calcined at 1300 oC in argon atmosphere and multi-layer graphene was formed from polyaniline in both cases as confirmed by Raman microspectroscopy. Changes in morphology and surface conductivity of uncalcined and calcined samples were observed using atomic force microscopy and conductive atomic force microscopy. Also the differences between surface and internal volume of tablets were studied. Conductive atomic force microscopy revealed that the most conductive areas can be found solely on the edges of aluminosilicate particles formed from montmorillonite during calcination process. Detailed observation of multi-layer graphene in these areas was performed using transmission electron microscopy.

Název v anglickém jazyce

Polyaniline as a precursor of multi-layer graphene: Microscopic and microspectroscopic study

Popis výsledku anglicky

Aluminosilicate-based nanocomposites containing multi-layer graphene were prepared from polyaniline/montmorillonite intercalate in two different forms: tablets and thin layers. Starting materials, polyaniline/montmorillonite powder and polyaniline/montmorillonite layers deposited on quartz glass, were prepared by in situ polymerization of aniline in presence of montmorillonite particles.Powder was compacted into tablets using pressure 400 MPa. Samples were calcined at 1300 oC in argon atmosphere and multi-layer graphene was formed from polyaniline in both cases as confirmed by Raman microspectroscopy. Changes in morphology and surface conductivity of uncalcined and calcined samples were observed using atomic force microscopy and conductive atomic force microscopy. Also the differences between surface and internal volume of tablets were studied. Conductive atomic force microscopy revealed that the most conductive areas can be found solely on the edges of aluminosilicate particles formed from montmorillonite during calcination process. Detailed observation of multi-layer graphene in these areas was performed using transmission electron microscopy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

LQ1602: IT4Innovations excellence in science

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

"7736–7747"

Kód UT WoS článku

000473105800030

EID výsledku v databázi Scopus

—