Tunable electrical conductivity of nickel-polypyrrole microparticle suspensions under electric and magnetic fields

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F25%3A63596779" target="_blank" >RIV/70883521:28110/25:63596779 - isvavai.cz</a>
Alternative codes found
RIV/70883521:28610/25:63596779
Result on the web
<a href="https://pubs.rsc.org/en/content/articlelanding/2025/tc/d5tc01039j" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2025/tc/d5tc01039j</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d5tc01039j" target="_blank" >10.1039/d5tc01039j</a>

Result language
angličtina
Original language name
Tunable electrical conductivity of nickel-polypyrrole microparticle suspensions under electric and magnetic fields
Original language description
This study presents a new class of low-cost composite materials based on a silicone oil suspension containing nickel-based hybrid microparticles in equal volume fractions. Two types of suspensions were prepared using magnetic particles with different compositions. The nickel content of the hybrid microparticles was 78.3 and 83.4 wt% nickel core, respectively, with the rest being a polypyrrole coating composed of nanoparticles and nanotubes. Utilizing a specialized experimental setup, we investigated the influence of nickel concentrations on the electrical conduction properties of the suspensions. The measurements were performed under electric and combined electric and magnetic fields. Our findings demonstrate that the electrical conductivity has a non-linear response with external fields and it can be effectively tuned through the nickel content and the external fields. A model was developed to understand the observed trends. These findings have significant implications for the design and optimization of advanced materials in applications requiring the precise control of electrical properties under varying field conditions.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)

Project
<a href="/en/project/GA23-07244S" target="_blank" >GA23-07244S: Anisotropic Magnetorheological Elastomers with Controlled Electrical Properties</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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