Open Access Article
This Open Access Article is licensed under a Creative Commons Attribution 3.0 Unported Licence
Retraction: Formation of Fe3O4@MnO2 ball-in-ball hollow spheres as a high performance catalyst with enhanced catalytic performances
Shouwei
Zhang
a,
Qiaohui
Fan
b,
Huihui
Gao
a,
Yongshun
Huang
c,
Xia
Liu
c,
Jiaxing
Li
*cd,
Xijin
Xu
*a and
Xiangke
Wang
*d
aSchool of Physics and Technology, University of Jinan, Shandong 250022, P. R. China. E-mail: spsxuxj@ujn.edu.cn
bKey Laboratory of Petroleum Resources, Gansu Province/Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
cKey Laboratory of Novel Thin Film Solar Cells, Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, P. R. China. E-mail: lijx@ipp.ac.cn; Fax: +86-551-65591310; Tel: +86-551-65596617
dNAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia. E-mail: xkwang@ipp.ac.cn
First published on 16th November 2022
Abstract
Retraction of ‘Formation of Fe3O4@MnO2 ball-in-ball hollow spheres as a high performance catalyst with enhanced catalytic performances’ by Shouwei Zhang et al., J. Mater. Chem. A, 2016, 4, 1414–1422, https://doi.org/10.1039/C5TA08400H.
The Royal Society of Chemistry, with the agreement of the authors, hereby wholly retracts this Journal of Materials Chemistry A article due to concerns with the reliability of the data in the published article.
There are repeating fragments in the 282–291 eV region of the XPS spectrum in Fig. 3F. Part of the SEM image in Fig. 4E, representing SiO2@Fe3O4@MnO2, is duplicated in the SEM image in Fig. 5A which represents a different material, Fe3O4@MnO2 BBHs. An independent expert was consulted who was not satisfied with the replacement data and explanation provided by the authors.
Given the significance of the concerns about the validity of the original and replacement data, the findings presented in this paper are no longer reliable.
Signed: Shouwei Zhang, Qiaohui Fan, Huihui Gao, Yongshun Huang, Xia Liu, Jiaxing Li, Xijin Xu, Xiangke Wang
Date: 3rd November 2022
Retraction endorsed by Michaela Mühlberg, Executive Editor, Journal of Materials Chemistry A.
| This journal is © The Royal Society of Chemistry 2022 |