Open Access Article
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Expression of concern: Preparation of Y-doped ZrO2 coatings on MnO2 electrodes and their effect on electrochemical performance for MnO2 electrochemical supercapacitors
Laura Fisher
Royal Society of Chemistry, Thomas Graham House, Science Park, Milton Road, Cambridge, UK
First published on 17th February 2022
Abstract
Expression of concern for ‘Preparation of Y-doped ZrO2 coatings on MnO2 electrodes and their effect on electrochemical performance for MnO2 electrochemical supercapacitors’ by Yuqing Zhang et al., RSC Adv., 2016, 6, 1750–1759, DOI: 10.1039/C5RA20543C.
The following article ‘Preparation of Y-doped ZrO2 coatings on MnO2 electrodes and their effect on electrochemical performance for MnO2 electrochemical supercapacitors’ has been published in RSC Advances.
The SEM in Fig. 6C, which represents Y/ZrO2@MnO2 particles after 5000 cycles, is a rotated and scaled section of Fig. 6B, which represents Y/ZrO2@MnO2 particles.
The authors were contacted for comment and asked to provide raw data but have not responded to these concerns. RSC Advances is publishing this expression of concern to alert readers to the concerns raised. An expression of concern will continue to be associated with the article until we receive conclusive evidence regarding the reliability of the reported data.
Laura Fisher
11th February 2022
Executive Editor, RSC Advances
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