Issue 2, 2012
From the journal:

CrystEngComm

Facile synthesis of flower-like Cu3BiS3 hierarchical nanostructures and their electrochemical properties for lithium-ion batteries

Yaping Zeng,a   Hongxing Li,a   Baihua Qu,a   Boyuan Xiang,a   Liu Wang,a   Qinglin Zhang,*a   Qiuhong Li,a   Taihong Wanga  and  Yanguo Wang*ab  

* Corresponding authors

a Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education, State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, Changsha, China
E-mail: qinglinz@hnu.cn

b Institute of Physics, Chinese Academy of Sciences, Beijing, P. R. China.
E-mail: ygwang@blem.ac.cn

Abstract

Flower-like hierarchical nanostructures with Cu3BiS3 nanosheets as building blocks formed by in situ corrosion of matrix Cu3BiS3 microspheres were synthesized via a facile hydrothermal method. Their morphology, microstructure, and crystalline phase were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD), respectively. Pore-size distribution analysis indicated that both mesopores and micropores existed in the as-obtained product, which are favourable for increasing the surface-to-volume ratio. The optical band gap of the hierarchical Cu3BiS3 nanostructures was estimated to be ∼1.2 eV by UV-vis spectroscopy. Electrochemical measurements were also used to investigate the electrochemical Li+ intercalation performance for the flower-like Cu3BiS3 nanostructures. The results showed that the initial discharge capacity of the nanosheet based Cu3BiS3 hierarchical structures is 676 mA h g−1 which is larger than the theoretical value of Bi2S3 (625 mA h g−1), but it degraded quickly during subsequent cycles, and further improvement in cyclic stability is still needed for practical application in lithium-ion batteries.

Graphical abstract: Facile synthesis of flower-like Cu3BiS3 hierarchical nanostructures and their electrochemical properties for lithium-ion batteries

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Article information

DOI
https://doi.org/10.1039/C1CE06056B
Article type
Paper
Submitted
16 Aug 2011
Accepted
10 Oct 2011
First published
02 Nov 2011

CrystEngComm, 2012,14, 550-554

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Facile synthesis of flower-like Cu3BiS3 hierarchical nanostructures and their electrochemical properties for lithium-ion batteries

Y. Zeng, H. Li, B. Qu, B. Xiang, L. Wang, Q. Zhang, Q. Li, T. Wang and Y. Wang, CrystEngComm, 2012, 14, 550 DOI: 10.1039/C1CE06056B

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