Retraction notice to “N-rich and O-poor doped carbon prepared via facile ammonium nitrate assisted hydrothermal carbonization for robust supercapacitors” [J Clean. Prod. (2022) 133903] (Journal of Cleaner Production (2022) 373, (S095965262203476X), (10.1016/j.jclepro.2022.133903))

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/policies/article-withdrawal). This article has been retracted at the request of the Editor-in-Chief. Post-publication, the editor discovered suspicious changes in authorship between the original submission and the revised version of this paper. During revision, the author's names Guosong Ni and Weiyou Zhou were added to the revised paper without explanation and without exceptional approval by the journal editor, which is contrary to the journal policy on changes to authorship. The editor reached out to the authors for an explanation, but they failed to provide a satisfactory explanation to these changes. Overall, the editor feels that the findings of the manuscript cannot be relied upon, and the article needs to be retracted. © 2024 Elsevier Ltd