Expression of concern: Copper nanoparticle anchored biguanidine-modified Zr-UiO-66 MOFs: a competent heterogeneous and reusable nanocatalyst in Buchwald–Hartwig and Ullmann type coupling reactions
Hojat Veisi, Narges Neyestani, Mozhgan Pirhayati, Sheida Ahany Kamangar, Shahram Lotfi, Taiebeh Tamoradi, Bikash Karmakar
TL;DR
The paper addresses a concern regarding a study on copper nanoparticle-based catalysts for chemical reactions.
Contribution
The paper expresses concerns about the validity or reliability of the findings in the original study.
Findings
The paper raises concerns about the original study's claims.
It questions the reliability of the reported catalytic performance.
It suggests potential issues with the experimental data or conclusions.
Abstract
Expression of concern for ‘Copper nanoparticle anchored biguanidine-modified Zr-UiO-66 MOFs: a competent heterogeneous and reusable nanocatalyst in Buchwald–Hartwig and Ullmann type coupling reactions’ by Hojat Veisi et al., RSC Adv., 2021, 11, 22278–22286, https://doi.org/10.1039/D1RA02634H.
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Taxonomy
TopicsAdvanced Nanomaterials in Catalysis · Sulfur-Based Synthesis Techniques · Chemical Synthesis and Reactions