Facile synthesis of Co                         3                         O                         4                          spheres and their unexpected high specific discharge capacity for Lithium-ion batteries

Zhengdong Wang; Shaohua Qu; Yonghong Cheng; Chenghui Zheng; Siyu Chen; Hongjing Wu

doi:10.1016/j.apsusc.2017.04.194

Facile synthesis of Co ₃ O ₄ spheres and their unexpected high specific discharge capacity for Lithium-ion batteries

Zhengdong Wang, Shaohua Qu, Yonghong Cheng, Chenghui Zheng, Siyu Chen, Hongjing Wu

School of Physical Science and Technology

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

We report a facile, one-pot hydrothermal synthesis of Co ₃ O ₄ solid spheres and multi-shelled Co ₃ O ₄ hollow spheres with a controlled number of movable internal Co ₃ O ₄ shells. Moreover, the magnetic properties of the multi-shelled Co ₃ O ₄ hollow spheres were first investigated by the SQUID magnetometer. Interestingly, the Co ₃ O ₄ solid spheres calcined at 430 °C deliver an unexpected high specific discharge capacity of 1976 and 1129 mAh g ⁻¹ for the 17th and 100th cycle at 100 mA g ⁻¹ , respectively. In addition, the Co ₃ O ₄ solid spheres calcined at 430 °C also show good capacity retention (i.e., 1129 mAh g ⁻¹ after 100 cycles). The significant performance improvement offers the potential to open up an avenue for next-generation LIBs.

Original language	English
Pages (from-to)	338-343
Number of pages	6
Journal	Applied Surface Science
Volume	416
DOIs	https://doi.org/10.1016/j.apsusc.2017.04.194
State	Published - 15 Sep 2017

Keywords

Co O spheres
High specific discharge capacity
Lithium-ion storage properties
Magnetic properties

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.apsusc.2017.04.194

Cite this

Wang, Z., Qu, S., Cheng, Y., Zheng, C., Chen, S., & Wu, H. (2017). Facile synthesis of Co ₃ O ₄ spheres and their unexpected high specific discharge capacity for Lithium-ion batteries Applied Surface Science, 416, 338-343. https://doi.org/10.1016/j.apsusc.2017.04.194

Wang, Zhengdong ; Qu, Shaohua ; Cheng, Yonghong et al. / Facile synthesis of Co ₃ O ₄ spheres and their unexpected high specific discharge capacity for Lithium-ion batteries In: Applied Surface Science. 2017 ; Vol. 416. pp. 338-343.

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title = " Facile synthesis of Co 3 O 4 spheres and their unexpected high specific discharge capacity for Lithium-ion batteries ",

abstract = " We report a facile, one-pot hydrothermal synthesis of Co 3 O 4 solid spheres and multi-shelled Co 3 O 4 hollow spheres with a controlled number of movable internal Co 3 O 4 shells. Moreover, the magnetic properties of the multi-shelled Co 3 O 4 hollow spheres were first investigated by the SQUID magnetometer. Interestingly, the Co 3 O 4 solid spheres calcined at 430 °C deliver an unexpected high specific discharge capacity of 1976 and 1129 mAh g −1 for the 17th and 100th cycle at 100 mA g −1 , respectively. In addition, the Co 3 O 4 solid spheres calcined at 430 °C also show good capacity retention (i.e., 1129 mAh g −1 after 100 cycles). The significant performance improvement offers the potential to open up an avenue for next-generation LIBs.",

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author = "Zhengdong Wang and Shaohua Qu and Yonghong Cheng and Chenghui Zheng and Siyu Chen and Hongjing Wu",

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Wang, Z, Qu, S, Cheng, Y, Zheng, C, Chen, S & Wu, H 2017, ' Facile synthesis of Co ₃ O ₄ spheres and their unexpected high specific discharge capacity for Lithium-ion batteries ', Applied Surface Science, vol. 416, pp. 338-343. https://doi.org/10.1016/j.apsusc.2017.04.194

Facile synthesis of Co ₃ O ₄ spheres and their unexpected high specific discharge capacity for Lithium-ion batteries . / Wang, Zhengdong; Qu, Shaohua; Cheng, Yonghong et al.
In: Applied Surface Science, Vol. 416, 15.09.2017, p. 338-343.

Research output: Contribution to journal › Article › peer-review

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AU - Wang, Zhengdong

AU - Qu, Shaohua

AU - Cheng, Yonghong

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AU - Chen, Siyu

AU - Wu, Hongjing

PY - 2017/9/15

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AB - We report a facile, one-pot hydrothermal synthesis of Co 3 O 4 solid spheres and multi-shelled Co 3 O 4 hollow spheres with a controlled number of movable internal Co 3 O 4 shells. Moreover, the magnetic properties of the multi-shelled Co 3 O 4 hollow spheres were first investigated by the SQUID magnetometer. Interestingly, the Co 3 O 4 solid spheres calcined at 430 °C deliver an unexpected high specific discharge capacity of 1976 and 1129 mAh g −1 for the 17th and 100th cycle at 100 mA g −1 , respectively. In addition, the Co 3 O 4 solid spheres calcined at 430 °C also show good capacity retention (i.e., 1129 mAh g −1 after 100 cycles). The significant performance improvement offers the potential to open up an avenue for next-generation LIBs.

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Wang Z, Qu S, Cheng Y, Zheng C, Chen S, Wu H. Facile synthesis of Co ₃ O ₄ spheres and their unexpected high specific discharge capacity for Lithium-ion batteries Applied Surface Science. 2017 Sep 15;416:338-343. doi: 10.1016/j.apsusc.2017.04.194