Negative thermal expansion property in Nb14W3O44

Niu Zhang; Jinghua Li; Xiaoshuai Kong; Mengting She; Peng Guo; Jingjing Sun; Peiling Yuan; Shuaipu Zang; Mingju Chao; Erjun Liang

Journal of Materials Research and Technology (May 2022)

Negative thermal expansion property in Nb14W3O44

Niu Zhang,
Jinghua Li,
Xiaoshuai Kong,
Mengting She,
Peng Guo,
Jingjing Sun,
Peiling Yuan,
Shuaipu Zang,
Mingju Chao,
Erjun Liang

Affiliations

Niu Zhang: College of Science, Zhengzhou Key Laboratory of Low-dimensional Quantum Materials and Devices, Zhongyuan University of Technology, Zhengzhou, 450007, China; Corresponding author.
Jinghua Li: College of Science, Zhengzhou Key Laboratory of Low-dimensional Quantum Materials and Devices, Zhongyuan University of Technology, Zhengzhou, 450007, China
Xiaoshuai Kong: MOE Key Laboratory of Materials Physics, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450001, China
Mengting She: College of Science, Zhengzhou Key Laboratory of Low-dimensional Quantum Materials and Devices, Zhongyuan University of Technology, Zhengzhou, 450007, China
Peng Guo: College of Science, Zhengzhou Key Laboratory of Low-dimensional Quantum Materials and Devices, Zhongyuan University of Technology, Zhengzhou, 450007, China
Jingjing Sun: College of Science, Zhengzhou Key Laboratory of Low-dimensional Quantum Materials and Devices, Zhongyuan University of Technology, Zhengzhou, 450007, China
Peiling Yuan: College of Science, Zhengzhou Key Laboratory of Low-dimensional Quantum Materials and Devices, Zhongyuan University of Technology, Zhengzhou, 450007, China
Shuaipu Zang: College of Science, Zhengzhou Key Laboratory of Low-dimensional Quantum Materials and Devices, Zhongyuan University of Technology, Zhengzhou, 450007, China
Mingju Chao: MOE Key Laboratory of Materials Physics, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450001, China
Erjun Liang: MOE Key Laboratory of Materials Physics, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450001, China

Journal volume & issue: Vol. 18
pp. 3841 – 3848

Abstract

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Nb14W3O44, a promising electrode material of lithium-ion batteries/capacitors, was prepared using a solid-state method. Its geometrical structure, phase diagram, and thermal expansion properties were all thoroughly investigated. The material has a tetragonal structure and an intriguing linear negative thermal expansion (NTE) property with an impressive coefficient of thermal expansion (−4.27 × 10−6 K−1, 300–433 K). The NTE phenomenon can be attributed to the vibrations of the bridge-site atoms, which caused the coupling rotation of the rigid unit models. The lattice distortion, and pores could also affect the thermal expansion performance in the bulk materials.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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