Retraction to: Nature Communications 10.1038/ncomms8872, published online 05 August 2015
The authors have retracted this article because there are a number of flaws in the figures and data. Figure 2c and the EDS mappings in Figures 2d, 2e and 2f were re-used from the authors previous work1 where a different material was used. Figures 4b and 4c contain sections with an unexplained blank section not matching the background or image. The EDX images in Figures 4d–4f were modified before publication. The background noise in the XRD spectra in Supplementary Figure 9 shows a much higher degree of overlap than would be expected for different cycles.
The authors sincerely apologize to the scientific community for any confusion caused by these errors. All authors agree to this retraction.
Footnotes
These authors contributed equally: Sa Li, Junjie Niu.
Contributor Information
Chang An Wang, Email: wangca@mail.tsinghua.edu.cn.
Ju Li, Email: liju@mit.edu.
References
- 1.Li S, Wang C-A. Design and synthesis of hierarchically porous MnO2/carbon hybrids for high performance electrochemical capacitors. J. Colloid. Interface Sci. 2015;438:61–67. doi: 10.1016/j.jcis.2014.09.065. [DOI] [PubMed] [Google Scholar]