Electrical conductivity and morphology of polyaniline/montmorillonite and derived graphene-containing nanocomposites

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F17%3A10235741" target="_blank" >RIV/61989100:27360/17:10235741 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27640/17:10235741 RIV/61989100:27740/17:10235741

Result on the web

<a href="https://www.nanocon.eu/files/uploads/01/NANOCON2016_conference_proceedings_content.pdf" target="_blank" >https://www.nanocon.eu/files/uploads/01/NANOCON2016_conference_proceedings_content.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Electrical conductivity and morphology of polyaniline/montmorillonite and derived graphene-containing nanocomposites

Original language description

Tapping mode atomic force microscopy (TM-AFM) and scanning spreading resistance microscopy (SSRM) were found to be useful scanning probe microscopy (SPM) techniques for the characterization of surface conductivity and morphology of the conductive ceramics-like and graphene-containing nanocomposite prepared from polyaniline/montmorillonite (PANI/MMT) nanocomposite. In this work, the changes in conductivity and morphology of PANI/MMT nanocomposites before and after heat treatment are studied. PANI/MMT nanocomposite was prepared using oxidative polymerization of anilinium sulfate by ammonium peroxydisulfate in the presence of MMT particles (size fraction &lt; 40 µm). Prepared PANI/MMT powder was pressed into tablets using pressure 400 MPa. These tablets were calcined in dynamic argon atmosphere at temperature 1400 °C for 1 hour. The changes of local current on the surface and on the fractures (i.e. in the internal volume) of tablets were studied using SSRM and the local current maps of PANI/MMT nanocomposites before and after calcination were compared. SSRM shows that while after the calcination the conductivity in the internal volume of the sample strongly increased, the conductivity on the surface disappeared. Tapping mode is characterized by a less sample-tip interaction and, therefore, with respect to the nature of prepared nanocomposites, provides images without many visible artefacts.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

21001 - Nano-materials (production and properties)

Project

<a href="/en/project/LQ1602" target="_blank" >LQ1602: IT4Innovations excellence in science</a><br>

Continuities

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

Publication year

2017

Confidentiality

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

Article name in the collection

NANOCON 2016 : conference proceedings : October 19-21, 2016, Brno, Česko

ISBN

978-80-87294-71-0

ISSN

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e-ISSN

neuvedeno

Number of pages

6

Pages from-to

739-744

Publisher name

Tanger

Place of publication

Ostrava

Event location

Brno

Event date

Oct 19, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000410656100128