Retraction Note: Synthesis of Bimetallic Nickel-Cobalt Nanoparticles Supported by Functional Multi-Walled Carbon Nanotubes by Chemical Methods: Characterization and Hydrogen Energy Generation (Topics in Catalysis, (2024), 67, 9-12, (606-614), 10.1007/s11244-024-01907-x)

The Editors-in-Chief have retracted this article because of errors and inconsistencies which raise concerns regarding the validity of the research reported in this work. A review conducted by the journal found that: The turnover frequency reported in the section entitled Catalytic Studies of Hydrogen Production was incorrectly calculated; There is no conclusive evidence that bimetallic Nickel-Cobalt nanoparticles associated with carbon nanotubes were synthesized, as the reported XRD pattern and TEM micrographs don’t support this result. Furthermore, the description of the synthesis procedure was considered to be lacking in substance; The differences between the average sizes of nanoparticles is not adequately explained. The authors were asked to comment on these concerns, but their explanation was deemed unsatisfactory. The Editors-in-Chief no longer have confidence in the research presented in this article. The authors disagree with this retraction.