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Expression of concern: Hollow amorphous NaFePO4 nanospheres as a high-capacity and high-rate cathode for sodium-ion batteries

Simon R. T. Neil
Royal Society of Chemistry, Thomas Graham House, Science Park, Milton Road, Cambridge, UK CB4 0WF. E-mail: materialsA-rsc@rsc.org

Received 22nd June 2018 , Accepted 22nd June 2018

First published on 3rd July 2018


Expression of concern for ‘Hollow amorphous NaFePO4 nanospheres as a high-capacity and high-rate cathode for sodium-ion batteries’ by Chun Li et al., J. Mater. Chem. A, 2015, 3, 8265–8271.


The following article ‘Hollow amorphous NaFePO4 nanospheres as a high-capacity and high-rate cathode for sodium-ion batteries’ by Chun Lia, Xue Miaoa, Wei Chu*b, Ping Wua and Dong Ge Tong*a has been published in Journal of Materials Chemistry A. The article reports the preparation of hollow amorphous NaFePO4 nanospheres and their application as a cathode for sodium-ion batteries.

Journal of Materials Chemistry A is publishing this expression of concern in order to alert our readers that we are presently unable to confirm the accuracy of the data reported in the TEM images in Fig. S1, S3, S6a, S9a–d and S14a–b of the ESI of this Journal of Materials Chemistry A paper.

The College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology has confirmed that the original TEM files are not available. The authors are in the process of repeating the experiments to confirm the validity of the TEM images in the published figures. This notice will be updated when a conclusive outcome is reached.

Simon R. T. Neil

22nd June 2018

Managing Editor, Journal of Materials Chemistry A


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