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Asymmetric structuring of ceramic composite via co-electrospun sodium cobaltite and calcium cobaltite nanoribbons

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autorschaft

  • Katharina Kruppa
  • Itzhak I. Maor
  • Frank Steinbach
  • Dorothea Stobitzer
  • Armin Feldhoff

Externe Organisationen

  • Technion-Israel Institute of Technology
  • Netzsch Gerätebau GmbH

Details

OriginalspracheEnglisch
FachzeitschriftJournal of the American Ceramic Society
Frühes Online-Datum7 Jan. 2025
PublikationsstatusElektronisch veröffentlicht (E-Pub) - 7 Jan. 2025

Abstract

An asymmetrically structured sodium cobaltite–calcium cobaltite ceramic composite with enhanced texture was synthesized using co-electrospinning of nanoribbons and rapid thermal processing (RTP). Long-term stability tests revealed that embedding the unstable sodium cobaltite in the chemically more stable calcium cobaltite effectively shields it from degradation at high temperatures in air. The composite has overall impressive thermoelectric properties. Measured at 1073 K, the composite showed an electrical conductivity of 183 S cm−1, a Seebeck coefficient of 233 µV K−1, and heat conductivity of 2.2 W m−1K−1. It features a high power factor of 9.9 µW cm−1K−2 and a figure-of-merit of 0.49, significantly surpassing the thermoelectric performance of sodium cobaltite–calcium cobaltite ceramic composites from previous studies.

ASJC Scopus Sachgebiete

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Asymmetric structuring of ceramic composite via co-electrospun sodium cobaltite and calcium cobaltite nanoribbons. / Kruppa, Katharina; Maor, Itzhak I.; Steinbach, Frank et al.
in: Journal of the American Ceramic Society, 07.01.2025.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Kruppa, K., Maor, I. I., Steinbach, F., Stobitzer, D., Shter, G. E., Mann-Lahav, M., Grader, G. S., & Feldhoff, A. (2025). Asymmetric structuring of ceramic composite via co-electrospun sodium cobaltite and calcium cobaltite nanoribbons. Journal of the American Ceramic Society. Vorabveröffentlichung online. https://doi.org/10.1111/jace.20326
Kruppa K, Maor II, Steinbach F, Stobitzer D, Shter GE, Mann-Lahav M et al. Asymmetric structuring of ceramic composite via co-electrospun sodium cobaltite and calcium cobaltite nanoribbons. Journal of the American Ceramic Society. 2025 Jan 7. Epub 2025 Jan 7. doi: 10.1111/jace.20326
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abstract = "An asymmetrically structured sodium cobaltite–calcium cobaltite ceramic composite with enhanced texture was synthesized using co-electrospinning of nanoribbons and rapid thermal processing (RTP). Long-term stability tests revealed that embedding the unstable sodium cobaltite in the chemically more stable calcium cobaltite effectively shields it from degradation at high temperatures in air. The composite has overall impressive thermoelectric properties. Measured at 1073 K, the composite showed an electrical conductivity of 183 S cm−1, a Seebeck coefficient of 233 µV K−1, and heat conductivity of 2.2 W m−1K−1. It features a high power factor of 9.9 µW cm−1K−2 and a figure-of-merit of 0.49, significantly surpassing the thermoelectric performance of sodium cobaltite–calcium cobaltite ceramic composites from previous studies.",
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Download

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AU - Kruppa, Katharina

AU - Maor, Itzhak I.

AU - Steinbach, Frank

AU - Stobitzer, Dorothea

AU - Shter, Gennady E.

AU - Mann-Lahav, Meirav

AU - Grader, Gideon S.

AU - Feldhoff, Armin

N1 - Publisher Copyright: © 2025 The Author(s). Journal of the American Ceramic Society published by Wiley Periodicals LLC on behalf of American Ceramic Society.

PY - 2025/1/7

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N2 - An asymmetrically structured sodium cobaltite–calcium cobaltite ceramic composite with enhanced texture was synthesized using co-electrospinning of nanoribbons and rapid thermal processing (RTP). Long-term stability tests revealed that embedding the unstable sodium cobaltite in the chemically more stable calcium cobaltite effectively shields it from degradation at high temperatures in air. The composite has overall impressive thermoelectric properties. Measured at 1073 K, the composite showed an electrical conductivity of 183 S cm−1, a Seebeck coefficient of 233 µV K−1, and heat conductivity of 2.2 W m−1K−1. It features a high power factor of 9.9 µW cm−1K−2 and a figure-of-merit of 0.49, significantly surpassing the thermoelectric performance of sodium cobaltite–calcium cobaltite ceramic composites from previous studies.

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KW - calcium cobaltites

KW - electrospinning

KW - nanoribbons

KW - sodium cobaltites

KW - texturing

KW - thermoelectric materials

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