Nanocarbon-induced 3d–π hybridization for optimizing thermoelectric performance in Ca 2.96 Co ₄ O ₉ composites

Zhen Han; Junzhan Zhang; Zhifang Zhou; Yuqing Qi; Zhongqi He; Zhiyu Cao; Yu Zhang; Fang Song; Zongmo Shi

doi:10.1039/d6tc00365f

January 1, 2026Journal of Materials Chemistry C

Nanocarbon-induced 3d–π hybridization for optimizing thermoelectric performance in Ca 2.96 Co ₄ O ₉ composites

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Key Points

The aim is to enhance the thermoelectric properties of Ca2.96Co4O9 composites using nanocarbon.
Utilized nanocarbon to induce 3d–π hybridization in Ca2.96Co4O9 composites.
Measured electrical conductivity, Seebeck coefficient, and evaluated phonon scattering effect.
Assessed thermoelectric performance at high temperature (873 K).
Achieved a ZT value of 0.28 for Ca2.96Co4O9–rGO composites at 873 K.
Significant increase in electrical conductivity and Seebeck coefficient observed.
Improved phonon scattering contributes to overall thermoelectric performance.

Implication

Shows enhanced thermoelectric performance in Ca2.96Co4O9 composites, indicating improved energy conversion efficiency.

Abstract

Nanocarbon-induced 3d–π orbital hybridization in Ca 2.96 Co 4 O 9 composites boosted electrical conductivity, Seebeck coefficient, and strengthened phonon scattering. A high ZT value of 0.28 was obtained for the Ca 2.96 Co 4 O 9 –rGO composites at 873 K.

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Cite This Study

Han et al. (2026) studied this question.

synapsesocial.com/papers/6a3631cedb0793dc1a53890a https://doi.org/10.1039/d6tc00365f

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Nanocarbon-induced 3d–π hybridization for optimizing thermoelectric performance in Ca 2.96 Co ₄ O ₉ composites

Key Points

Implication

Abstract

Discussion

Cite This Study

Nanocarbon-induced 3d–π hybridization for optimizing thermoelectric performance in Ca 2.96 Co ₄ O ₉ composites

Key Points

Implication

Abstract

Discussion

Cite This Study

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