Open Access Article
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Expression of concern: Highly porous copper-supported magnetic nanocatalysts: made of volcanic pumice textured by cellulose and applied for the reduction of nitrobenzene derivatives
Reza Taheri-Ledaria,
Mahdi Saeidirada,
Fateme Sadat Qazia,
Atefeh Fazelia,
Ali Maleki*a and
Ahmed Esmail Shalan*bc
aCatalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran. E-mail: maleki@iust.ac.ir
bBC Materials, Basque Center for Materials, Applications and Nanostructures, Martina Casiano, UPV/EHU Science Park, Barrio Sarriena s/n, Leioa 48940, Spain. E-mail: a.shalan133@gmail.com; ahmed.shalan@bcmaterials.net
cCentral Metallurgical Research and Development Institute (CMRDI), P. O. Box 87, Helwan, Cairo 11421, Egypt
First published on 25th March 2024
Abstract
Expression of concern for ‘Highly porous copper-supported magnetic nanocatalysts: made of volcanic pumice textured by cellulose and applied for the reduction of nitrobenzene derivatives’ by Reza Taheri-Ledari et al., RSC Adv., 2021, 11, 25284–25295, https://doi.org/10.1039/D1RA03538J.
The Royal Society of Chemistry is publishing this expression of concern in order to alert readers that concerns have been raised regarding the reliability of the SEM-energy mapping data in Fig. 3g. An investigation is underway, and an expression of concern will continue to be associated with the article until a final outcome is reached.
Laura Fisher
19th March 2024
Executive Editor, RSC Advances
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