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Journal of Materials Science: Materials in Electronics
Erschienen in: Journal of Materials Science: Materials in Electronics 10/2024

01.04.2024

Mn/La co-doped WO3 (MnxLa0.03WO3+δ, x ≤ 0.1) ceramics for NTC thermistors

verfasst von: Kaifeng Li, Zhicheng Li, Yaqiong Wen, Yifei Zhan, Hong Zhang

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 10/2024

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Abstract

The low sintering temperature (LST) is a great significance for the fabrication of sensors and electronic components. To exploit a system of LST negative temperature coefficient (NTC) thermistors, Mn/La co-doped WO3 ceramics (MnxLa0.03WO3+δ, x ≤ 0.1, denoted as xMLW) were prepared in this work by a traditional solid-state reaction technology. The phase component, microstructure, and electrical property of the prepared xMLW ceramics were investigated. The xMLW ceramics have the main phase with lattice structure as that of monoclinic WO3 with a space group of P21/n, and show typical NTC characteristics. By varying the concentration of Mn cations, the xMLW ceramics have adjustable room temperature resistivity (ρ25) ranging from 770 Ω·cm to 7.017 kΩ·cm and high thermal-sensitivity constants (B value) ranging from 2695 to 4219 K. The electrical conduction and NTC feature of the ceramics are discussed by analyzing impedance spectrum and lattice defect.
Vorheriger Artikel Correction: Development of PANI/CuMn2O4 nanocomposite via hydrothermal method for supercapacitor applications
Nächster Artikel Facile low-temperature synthesis of a hierarchical Sn-SnO2/CNT/rGO composite for anode material in lithium-ion batteries

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Metadaten
Titel
Mn/La co-doped WO3 (MnxLa0.03WO3+δ, x ≤ 0.1) ceramics for NTC thermistors
verfasst von
Kaifeng Li
Zhicheng Li
Yaqiong Wen
Yifei Zhan
Hong Zhang
Publikationsdatum
01.04.2024
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 10/2024
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-024-12469-9

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