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Optimization of the Synthesis and Compaction Modes of Ca3Co4O9 Oxide Composites with Multilayer Carbon Nanotubes Full article

Journal Journal of Structural Chemistry
ISSN: 0022-4766
Output data Year: 2025, Volume: 66, Number: 4, Pages: 742-756 Pages count : 15 DOI: 10.1134/s0022476625040109
Tags thermoelectrics,nanotubes, composites, synthesis modes, compaction modes, electrical conductivity, thermal EMF, thermal conductivity.
Authors Romanenko A.I. 1 , Chebanova G.E. 1 , Kuznetsov V.L. 2 , Yao J. 3 , Pai V.V. 4 , Drozhzhin M.V. 1 , Katamanin I.N. 1 , Lavrov A.N. 1 , Moseenkov S.I. 2 , Zavorin A.V. 2 , Su W.-B. 3 , Luk′yanov Y.L. 4 , Wang H.-C 3
Affiliations
1 Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2 Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
3 School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan, China
4 Lavrentyev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

Funding (1)

1 Министерство науки и высшего образования Российской Федерации FWGG-2021-0004

Abstract: The Ca3Co4O9 oxides are prepared by Pechini method and solid-phase methods. The compaction is performed by spark plasma sintering, cold pressing followed by explosive compression (explosion method), and by rapid hot pressing. The compaction achieved by the explosion method with the addition of an AlN binder provides the maximum thermoelectric figure of merit ZT300 K = 0.161 at room temperature. Adding multilayer carbon nanotubes (CNTs) to the oxides prepared by the Pechini method deteriorates the characteristics, and increasing the CNT content in Ca3Co4O9 prepared by the solid-phase method and compacted by rapid hot pressing increases the thermoelectric figure of merit ZT300 K up to 0.048 in Ca3Co4O9+3 wt.% CNT.
Cite: Romanenko A.I. , Chebanova G.E. , Kuznetsov V.L. , Yao J. , Pai V.V. , Drozhzhin M.V. , Katamanin I.N. , Lavrov A.N. , Moseenkov S.I. , Zavorin A.V. , Su W.-B. , Luk′yanov Y.L. , Wang H.-C.
Optimization of the Synthesis and Compaction Modes of Ca3Co4O9 Oxide Composites with Multilayer Carbon Nanotubes
Journal of Structural Chemistry. 2025. V.66. N4. P.742-756. DOI: 10.1134/s0022476625040109 WOS Scopus OpenAlex
Dates:
Submitted: May 16, 2024
Accepted: Dec 16, 2024
Published print: May 7, 2025
Identifiers:
Web of science: WOS:001615188600010
Scopus: 2-s2.0-105004460045
OpenAlex: W4410174521
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