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- W4384944502 abstract "The influence of manganese modification on the spectroscopic features of manganese-doped CeO2 systems synthesized by the microwave-assisted hydrothermal route and their correlation with the presence of O defective structures were verified, focusing on their interaction with poisonous atmospheres. Raman and electron paramagnetic resonance studies confirmed the presence of defective clusters formed by dipoles and/or quadrupoles. The number of paramagnetic species was found to be inversely proportional to the doping concentration, resulting in an increase in the Mn2+ signal, likely due to the reduction of Mn3+ species after the interaction with CO. X-ray photoelectron spectroscopy data showed the pure system with 33% of its cerium species in the Ce3+ configuration, with an abrupt decrease to 19%, after the first modification with Mn, suggesting that 14% of the Ce3+ species are donating one electron to the Mn2+ ions, thus becoming nonparamagnetic Ce4+ species. On the contrary, 58% of the manganese species remain in the Mn2+ configuration with five unpaired electrons, corroborating the paramagnetic feature of the samples seen in the electron paramagnetic resonance study." @default.
- W4384944502 created "2023-07-22" @default.
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- W4384944502 date "2023-07-21" @default.
- W4384944502 modified "2023-10-17" @default.
- W4384944502 title "Manganese Defective Clustering: Influence on the Spectroscopic Features of Ceria-Based Nanomaterials" @default.
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- W4384944502 doi "https://doi.org/10.1021/acs.inorgchem.3c01597" @default.
- W4384944502 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37478498" @default.
- W4384944502 hasPublicationYear "2023" @default.
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