Characterization of an Environmentally Responsive Organic–Inorganic Hybrid Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub>/PPy-c Core–Shell Nanocomposite with Magneto-Chromatic Ability for Synergistic Electrical Properties

The aim of this study was to analyze the properties of a composite that incorporates carbon black and polypyrrole within an Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub> core-shell structure, synthesized using the Stöber method under high ultrasonic irradiation conditions (120 W) for Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub> nanocomposite. The Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub> core-shell indicates magnetochromatic behavior characterized by temperature-dependent coloration and magnetic alignment. Incorporating carbon black and polypyrrole at moderate temperature (5-15 °C) enhanced the electrical conductivity. The electrical resistivity ρ was 7.30 × 10<sup>6</sup> Ω·cm for Fe<sub>3</sub>O<sub>4</sub>, 3.19 × 10<sup>8</sup> Ω·cm for Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub>, and 242.56 Ω·cm for Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub>/PPy-c at room temperature. When it was performed at moderate temperature (5-15 °C), the ρ of the prepared Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub> and Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub>/PPy-c nanocomposite was 1.08 × 10<sup>8</sup> and 0.00799 Ω·cm, respectively. Current-voltage measurements revealed a linear relationship, with butterfly shaped curves in the forward-bias region for all samples. The Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub>/PPy-c nanocomposite's tunable synergistic electrical properties at moderate temperatures make it useful for environmental applications, electrical wiring, and circuitry.

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Publication Details

Journal
Inorganic Chemistry
Published
2024-09-17
DOI
https://doi.org/10.1021/acs.inorgchem.4c02550
Citations
5
Primary Topic
Conducting polymers and applications
Type
article
Field-Weighted Citation Impact
0.84

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article

Characterization of an Environmentally Responsive Organic–Inorganic Hybrid Fe3O4/SiO2/PPy-c Core–Shell Nanocomposite with Magneto-Chromatic Ability for Synergistic Electrical Properties

Yang‐Wei Lin, Lance Horng, Veena Nivetha Mary Arockia Doss
5 citations
Inorganic Chemistry
Conducting polymers and applications
0.84
article

Characterization of an Environmentally Responsive Organic–Inorganic Hybrid Fe3O4/SiO2/PPy-c Core–Shell Nanocomposite with Magneto-Chromatic Ability for Synergistic Electrical Properties

Yang‐Wei Lin, Lance Horng, Veena Nivetha Mary Arockia Doss
article en
5 citations

Abstract

The aim of this study was to analyze the properties of a composite that incorporates carbon black and polypyrrole within an Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub> core-shell structure, synthesized using the Stöber method under high ultrasonic irradiation conditions (120 W) for Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub> nanocomposite. The Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub> core-shell indicates magnetochromatic behavior characterized by temperature-dependent coloration and magnetic alignment. Incorporating carbon black and polypyrrole at moderate temperature (5-15 °C) enhanced the electrical conductivity. The electrical resistivity ρ was 7.30 × 10<sup>6</sup> Ω·cm for Fe<sub>3</sub>O<sub>4</sub>, 3.19 × 10<sup>8</sup> Ω·cm for Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub>, and 242.56 Ω·cm for Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub>/PPy-c at room temperature. When it was performed at moderate temperature (5-15 °C), the ρ of the prepared Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub> and Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub>/PPy-c nanocomposite was 1.08 × 10<sup>8</sup> and 0.00799 Ω·cm, respectively. Current-voltage measurements revealed a linear relationship, with butterfly shaped curves in the forward-bias region for all samples. The Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub>/PPy-c nanocomposite's tunable synergistic electrical properties at moderate temperatures make it useful for environmental applications, electrical wiring, and circuitry.

Inorganic ChemistryVol. 63(39)
National Changhua University of Education (TW)
National Science and Technology Council
Openalex Percentile: Top 33%
Conducting polymers and applications
0.84
DOISourceOpenAlex
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Characterization of an Environmentally Responsive Organic–Inorganic Hybrid Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub>/PPy-c Core–Shell Nanocomposite with Magneto-Chromatic Ability for Synergistic Electrical Properties — Yang‐Wei Lin, Lance Horng, et al. · Inorganic Chemistry (2024) | TGRS Research Map | TGRS