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Processible Nanostructured Materials with Electrical Conductivity and Magnetic Susceptibility: Preparation and Properties of Maghemite/Polyaniline Nanocomposite Films
Abstract
We here present a versatile process for the preparation of maghemite/polyaniline (γ-Fe 2 O 3 /PAn) nanocomposite films with macroscopic processibility, electrical conductivity, and magnetic susceptibility. The γ-Fe 2 O 3 nanoparticles are coated and the PAn chains are doped by anionic surfactants of ω -methoxypoly(ethylene glycol) phosphate (PEOPA), 4-dodecylbenzenesulfonic acid (DBSA), and 10-camphorsulfonic acid (CSA). Both the coated γ-Fe 2 O 3 and the doped PAn are soluble in common organic solvents, and casting of the homogeneous solutions gives free-standing nanocomposite films with γ-Fe 2 O 3 contents up to ∼50 wt %. The morphology of the γ-Fe 2 O 3 nanoparticles are characterized by transmission electron microscopy, UV−vis spectroscopy, and X-ray diffractometry. The γ-Fe 2 O 3 /PAn films prepared from chloroform/ m -cresol solutions of DBSA-coated γ-Fe 2 O 3 and CSA-doped PAn are conductive ( σ = 82−237 S/cm) and superparamagnetic, exhibiting no hysteresis at room temperature. The zero-field-cooled magnetization experiment reveals that the nanocomposite containing 20.8 wt % γ-Fe 2 O 3 has a blocking temperature ( T b ) in the temperature region of 63−83 K.
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Citations
Cited by
Aggregation-induced emission of 1-methyl-1,2,3,4,5-pentaphenylsilole
Luo, J., Xie, Z., Lam, J. W. Y., Cheng, L., Tang, B. Z., Chen, H., Qiu, C., Kwok, H. S., Zhan, X., Liu, Y., et al. (2001) · Chemical Communications · doi:10.1039/b105159h · Cited by 8,358
Self-citationZhang, X., Chi, Z., Xu, B., Chen, C., Zhou, X., Zhang, Y., Liu, S., & Xu, J. (2012) · Journal of Materials Chemistry · doi:10.1039/c2jm33140c · Cited by 289
Self-citationChen, J., Xu, B., Ouyang, X., Tang, B. Z., & Cao, Y. (2004) · The Journal of Physical Chemistry A · doi:10.1021/jp048475q · Cited by 279
Self-citationMicroemulsion-assisted synthesis of tunable superparamagnetic composites
Tartaj, P., & Serna, C. J. (2002) · Chemistry of Materials · doi:10.1021/cm021214d · Cited by 110
Metadata
- Authors
- Tang, B. Z., Geng, Y., Lam, J. W. Y., Li, B., Jing, X., Wang, X., Wang, F., Pakhomov, A. B., & Zhang, X. X.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 1999-05-07
- Volume
- 11
- Issue
- 6
- Pages
- 1581-1589
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W1981523994
- Cited by
- 382
- References
- 0
- FWCI
- 8.33
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Processible Nanostructured Materials with Electrical Conductivity and Magnetic Susceptibility: Preparation and Properties of Maghemite/Polyaniline Nanocomposite Films. https://app.cochat.ai/papers/10.1021/cm9900305
- The paper
- Tang, B. Z., Geng, Y., Lam, J. W. Y., Li, B., Jing, X., Wang, X., Wang, F., Pakhomov, A. B., & Zhang, X. X. (1999). Processible Nanostructured Materials with Electrical Conductivity and Magnetic Susceptibility: Preparation and Properties of Maghemite/Polyaniline Nanocomposite Films. Chemistry of Materials. https://doi.org/10.1021/cm9900305
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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